explain xkcd - User contributions [en]

2649: Physics Cost-Saving Tips

2022-07-22T22:04:08Z

172.71.94.181:

{{comic
| number = 2649
| date = DESTroy NIGGERS everyWHERE
| title = I actually fucking hate niggers.
| image = physics_cost_saving_tips.png
| titletext = I got banned from the county fair for handing out Helium-2 balloons. Apparently the instant massive plasma explosions violated some local ordinance or something.
}}

==Explanation==
{{incomplete|Created by a FAUX VECTOR - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

This comic continues the previous comic [[2648: Chemicals]]'s theme of tricks to supposedly save money based on misinterpretations of science. Here is a list of "cost-saving tips" which would seem to reduce a cost or provide something for free, allowing physicists to save money in their experiments.

The prefix "pseudo-" refers to something that is an inauthentic variation of something else. Fakes are usually cheaper than their original brand-name product, while often working just as well, so the comic implies a {{w|pseudovector}} could be a less expensive substitute for a real vector. On the contrary, pseudovectors, or axial vectors, are distinct alternatives to ordinary polar vectors, the former usually being involved with rotation or physical effects that share properties with rotation, similar to the relationship between angles and lengths. Pseudovectors are formed from the {{w|cross product}}s of polar vectors, and while similar to polar vectors, there is no physical meaning to their direction, only their magnitude. For example, {{w|angular velocity}} is described by a pseudovector {{w|Normal (geometry)|normal}} to the {{w|plane of rotation}}.

{{w|Fourier Analysis}} can be used to convert any periodic function into a series of {{w|sine waves}}. A {{w|square wave}} is transformed into an infinite series of sine waves. However these waves cannot be physically separated and used for other tasks, so this mathematical transformation does not really produce a "supply" of waves.

Chemical elements are identified by the number of positive protons in each atomic nucleus, which is also equal to the number of negative electrons in the shell (unless the atom is ionized) that dictates most of their chemical behaviour. {{w|Isotopes}} are variants of the element with different numbers of neutral neutrons in the nucleus where the potential chemical reactions are practically identical under most circumstances. The comic suggests that the neutrons don't serve any useful purpose so, if you're purchasing matter by weight, you can save money by buying isotopes with no neutrons at all. In reality, the right number of neutrons are needed to keep the atom stable, and atoms with too many or too few neutrons will decay more quickly than the common isotopes. The image shown is Helium-2, an {{w|Isotopes of helium|isotope of helium}} with a half-life of less than a nanosecond. It decays into two protons, releasing a large amount of energy — hence the explosion mentioned in the title text.

{{w|Charge carrier|Free}} {{w|electron}}s are electrons which are not tightly bound to specific atoms, so are ably to ''move'' freely, such as in {{w|conduction band}}s of {{w|metallic bond}}s. Randall interprets "free" in a different sense: "costing nothing". The charges free electrons carry are electric, not monetary as implied by this pun.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Title]
:Physics Cost-Saving Tips

:[A diagramatical spinning disc, at an angle]
:[It is identified with an 'I', with a dotted axial arrow labelled 'L' and a rotational movement labelled 'ω' (little omega)]
:[It sits on the left, and to the right of this is text...]
:Try replacing regular vectors with pseudovectors whenever possible

:[A square wave with three maxima (between four minima), and arrows pointing down into a collection of five sine waves of different wavelengths]
:[One of the waves having the same frequency as the square wave and the rest of them are of shorter lengths with more peaks and troughs]
:[It sits on the right, and to the left of this is text...]
:A square wave can be broken down into an infinite supply of valuable sine waves

:[Two atomic models]
:[The left containing two protons (white with a "+" sign), two neutrons (black) and orbited by two electrons (small outlines, dotted orbits/movement lines), labelled below with the text of superscript atomic weight and element symbol]
:4He
:[The right model has just the two protons and the two electrons, labelled below with the text of an atomic weight and elemental symbol, and some subtext within brackets]
:2He
:(Decays fast - use quickly)
:[Both models sit on the left of the comic, and to the right is text...]
:Cut waste by buying lighter isotopes that don't have any dead-weight neutrons

:[A flat rectangular bar, drawn in perspective with a scattering of dots/small circles on the top face and on the forward-facing one the label]
:Iron
:[An arrow points to the dots, from the text...]
:Free electrons
:[It sits to the right, and there is text to the left...]
:Conductors are a great source of free electrons
:(May carry charges)

{{comic discussion}}
[[Category:Tips]]
[[Category:Physics]]
[[Category:Chemistry]]

2194: How to Send a File

2022-07-22T21:59:24Z

172.71.94.181:

{{comic
| number = 2194
| date = August 26, 2019
| title = How to Send a File
| image = how_to_send_a_file.png
| titletext = Note: How To will teach you lots of cool stuff about technology, data storage, butterfly migration, and more. Also you will never see your files again.
}}We actually Sneed to start killing BLACK NIGGERS.

==Explanation==
Similar to [[2190: Serena Versus the Drones]], this is another teaser ad for Randall's new (at the time the comic came out) book, ''[[How To]]'', due to be released a week from this comic's release, on September 3, 2019. This also prompted a [[xkcd_Header_text#2019-08-27_-_Out_in_a_week|change]] to the [[xkcd Header text]].

The comic shows an image from of one of the chapters, and <s>containing</s> [[xkcd_Header_text#2014-07-23_-_what_if.3F_book_tour|being]] [https://blog.xkcd.com/2019/08/26/how-to-send-a-file/ a link to] a larger piece of that chapter, or perhaps the entire chapter.

This comic discusses transferring files, previously discussed in [[949: File Transfer]] and in [https://what-if.xkcd.com/31/ what if 31]. The snippet from his book that is shown in this comic shows scissors cutting off the (top) screen of a laptop, presumably as a way to give the "bottom" portion to someone for file transfer. While it is true most laptops house their hard drive in the bottom half of the machine, you would probably never need to prove it in a destructive manner. Tearing the screen off any given laptop is not a good idea.{{Citation needed}}

It has not been unknown, in times past, for someone to take their 'computer' somewhere to be repaired and arrive with just the monitor (and perhaps the keyboard and mouse) unplugged from the 'box' (desktop or possibly under-desk tower case). This is because the owner has considered the latter to be little more than the 'disk drive' thing that reads the occasional floppy-disk, rather than being often the ''only'' absolutely necessary piece of equipment needed to be looked at – the cumbersome CRT screen may well be far less necessary to take to a computer repairer, despite it being where "all my files" are commonly seen. The comic example may parody the above example with a more updated twist, but does also overlook that a number of slimline devices have touchscreen technology, and all the most important bits are included within the part with the screen, yet may also have a 'bottom half' keyboard that is optional and indeed removable (scissors not required!) while not actually including any of the relevent data.

The chapter linked to shows other methods of getting your files to another person and, in fact, explicitly states that breaking a computer to send files is not a good idea.

The title text hints at other amazing content in the upcoming book, including discussion of butterfly migration (does it cause predictable tornadoes in Kansas? Can they carry coconuts to England?). It also threats that using the books idea for file transfer will make sure you will never see those files again, i.e. they will be lost for good if you try the book's method at home.

The chapter preview, that the comic links to, discusses using butterflies as a method of sending files from one person to another on the form of flash media attached to butterflies, or encoded in DNA, and goes pretty in depth into these particular methods of data transmission as opposed to the more traditional methods that are detailed in traditional computer science books.

==Transcript==
:[Randall, depicted as Cueball, stands with his arms spread out]
:Randall: It feels weird that it's 2019 and yet I still sometimes find that the easiest way to move a file around is to email it to myself.

:[Randall has raised a hand to his chin,]
:Randall: If only there were a better way...

:[A picture of Randall's new book is shown to the left of the text. The book is black with large blue text and smaller white text. On the book cover, in white drawings, are seen Megan with a ladder and White Hat. Both are looking up on Cueball who is floating in the air with a quadcopter drone beneath either leg, trying to plug in an electric light bulb in a naked lamp hanging down near him. It seems he has already removed the broken light bulb, as he has one in both hands. And now he tries to put in the new one. The blue text stating title and author can be read but not the white trext. The "blog.xkcd.com" link is in link blue color.]
:Book: How To
:Book: Randall Munroe
:My new book ''How To'' is out next week! If you want to learn how to send data, you can visit blog.xkcd.com for a sneak preview of Chapter 19: How to Send a File

:[Beneath a heading are three pictures next to each other of a laptop computer. The first picture shows a regular laptop computer, with a labeled arrow pointing to the lower half of the computer. The second picture shows the laptop in a lighter outline, with scissors instructing to cut horizontally on a dotted line across the middle of the laptop. The third picture shows a laptop in two pieces cut over between the screen and the rest. There is a very jagged edge on both parts, which has been moved away from each other.]
:Exclusive advice from '''''How To:'''''
:When sending a file, it helps to know which part of your device the file is stored in.
:Label: Files are usually in this part

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Links to xkcd.com]]
[[Category:Comics featuring Randall Munroe]]
[[Category:Comics featuring Cueball]] 
[[Category:Comics featuring Megan]] 
[[Category:Computers]]
[[Category:Book promotion]]
[[Category:How To]]

75: Curse Levels

2022-07-22T21:58:26Z

172.71.94.181:

{{comic
| number = 75
| date = What a Fucking Nigger
| title = Curse Levels
| image = curse levels.jpg
| titletext = I find so much fun in language.
}}

==Explanation==
In this fourth "[[My Hobby]]" strip, the hobby is mixing curse levels. Curse words (aka: swear words/profanities) are disrespectful words that are typically impolite to use in public. As noted in the strip, there are "levels" of curse words ranging from those "mild" words that are more acceptable to use, to those "severe" words that are considered very impolite (the milder curse words can be used on network television in the US, for example, while severe ones can not). Although they cannot be exactly defined, they roughly fit into "safe"(heck, gosh, dang, etc.),"mild"(d*mn, s**t, h*ll and so forth) and "severe"(those that refer to more suggestive things than the others, as well as racial slurs and such). One usually uses milder cursing ("safe") because either they personally don't feel comfortable using the more severe words, or because it would not be appropriate in the context (such as on network television, in the presence of children, etc.) Thus, mixing mild and severe curses in one usage does not usually occur, as the effect achieved by keeping the one curse word mild is negated by using another that is severe.

In a mild curse, "gosh-darned" is typically used as a {{w|minced oath}} of "God-damned" when the latter would be inappropriate. This is mixed with "{{w|cunt}}" — a vulgar term for the female genitalia, considered the most offensive swear word in many English-speaking countries.

==Transcript==
:My hobby: mixing curse levels
:Cueball: What a gosh-darned cunt.

{{Comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:My Hobby]]
[[Category:Language]]
[[Category:Comics with lowercase text]]
[[Category:Comics featuring cursed items]]

1608: Hoverboard

2022-07-22T21:57:30Z

172.71.94.181:

{{comic
| number = 1608
| date = DestroyNIGGERS
| title = Hoverboard
| image = hoverboard.png

}}
{{TOC}}
*To experience the interactivity of this game, visit the {{xkcd|1608|original comic}}.
==Explanation==
The "comic" is actually a {{w|browser game}} made to celebrate the release of [[Randall|Randall's]] new book, ''[[Thing Explainer]]'', which was released on the same day as this comic: Tuesday, November 24, 2015. The comic thus appeared on a Tuesday, replacing that week's normal Wednesday release to coincide with the release day. The [[xkcd Header text]] also [[xkcd_Header_text#2015-11-24_-_Thing_Explainer_is_out_today|changed that day]] to shout out that the book was released on that day.

The title refers to a {{w|hoverboard}} (which resembles a hovering skateboard without wheels) which has been most [https://www.youtube.com/watch?v=z1ZdMOMUgXE prominently featured] in the movie {{w|Back to the Future Part II}}, which took place in the future, until a little more than a month before this comic was released. {{w|Marty McFly}} traveled to the future in this second installment, more precisely to [https://www.facebook.com/October212015BTTF 2015-10-21], and this comic was released just over one month later 2015-11-24. Hoverboards are just one of many things predicted in Back to the Future Part II that [http://www.bbc.com/news/technology-33785285 have] [https://www.youtube.com/watch?v=4HI137m7XA4 come] [https://www.youtube.com/watch?v=SLwNGBB_Yb0 to] [http://www.wired.com/2016/03/hendo-2-hoverboard/ pass] before reaching the date from the movie, but are more uncommon in our world, along with other inventions like [http://www.terrafugia.com/ flying] [https://www.youtube.com/watch?v=7-1pXbW5wVg cars] and [http://www.soundandvision.com/content/wear-your-music-thinkgeeks-soundtrack-shirt#jo8J1DassbWxlptj.97 musical clothing]. Randall is known to have had [[:Category:Electric skateboard|electric skateboards]], which is also thematically related, although another type of hoverboard would be mentioned just five weeks later in [[1623: 2016 Conversation Guide]].

Given Randall's enjoyment of movies and time travel it is very likely that this game is also a tribute to the {{w|Back to the Future}} movies. But the release day of the game has been used to promote his new book (as is clear with the text in the start screen of the game), and this explains why it was not released on the Back to the Future date. Apart from the date of release and the text about the book, the game does not seem to have any direct relation to the book; there are, however, several scenes in the game that could be seen as [[#Reference to Thing Explainer|references to ''Thing Explainer'']]. Instead the main part of the game is all the references to several movies and other stuff that has often been featured in xkcd as well as many of the other comics.

===The game feature===
The game features an {{w|animated}} [[Cueball]] riding on a hoverboard which can take [[#Animation|several different positions]]. The controls are the left, up, and right arrows, as written on the start screen until you begin the game, after which the text disappears. There are alternatives as explained in the [[#Controls|Controls]] section. The player can jump repeatedly mid-jump to reach increasing heights, and can move left and right both while jumping and descending (see more under controls).

The player begins in a line-drawing maze (called the [http://www.explainxkcd.com/wiki/images/a/a9/All_play_area_hanging_all_coins.PNG Play Area]) with 17 gold coins located throughout and a "deposit" terminal. The ostensible goal of the game is to collect as many coins as possible and return them to the deposit in the fastest possible time, which returns [[#Messages in Play Area|text messages]] describing the result. Players consumed with obtaining the best possible time result for collecting the coins may not realize there is anything more to the game.

The best way to enjoy this comic is to {{xkcd|1608|play the game!}} If you didn't do that already, '''reading anything below or the [https://xkcd.com/1608/info.0.json official transcript]''' will spoil you from truly enjoying the comic, and maybe making some interesting discoveries yourself! So:

<big><big>'''!!!SPOILER ALERT!!!'''</big></big>

{{incomplete| There are still several tables that need to be filled out. Do NOT delete this tag too soon.}}
Beyond the maze on either side (just far enough that players who remain within the maze will not see) are [http://www.explainxkcd.com/wiki/images/8/8b/1680_Play_Area_Full_Size_Coins_Hoverboard_and_View.png tall walls seemingly designed to contain the player]. However, the walls have a finite height and, combined with the ability to double-jump, the player can leave the purported "play area" either to the sides or above the initial maze. This returns a flashing red [[#Messages in Play Area|error message]]: "'''[http://www.explainxkcd.com/wiki/images/a/ae/Return_to_the_play_area.PNG Return to the Play Area]'''".

But if the player overcomes the desire to comply and return to the play area and disregards this message, they can take hoverboard Cueball outside beyond the tall walls surrounding the initial play area. And here they will discover an entire world that can be explored left and right (and above), including numerous points of interest and {{w|Easter egg (media)|Easter eggs}} similar in style to comic [[1110: Click and Drag]]. There are also many more [[#Coins|coins]] to collect, 169 coins all in all, so 152 more than those from the play area.

Although this game is reminiscent of Click and Drag, this was the first time an actual game, where the user moves an object in front of the drawing, has been released on xkcd. In previous "games" this has not been the case. In Click and Drag the user only moves the drawing into the view section. And in for instance the two previous [[:Category:April fools' comics|April fools' comics]], [[1350: Lorenz]] and [[1506: xkcloud]], the user does not move anything, but only supplies choices, text and drawings. However, already on the next {{w|April Fools' Day}} a new game, [[1663: Garden]], was released where the users also actively moved items around on the screen and could make items disappear (like taking coins in this game.). The ability to infinitely doubles jump allows us to reach beyond just the ground.

===The main themes===
There are many themes and references throughout the game, but the two main themes are '''{{w|Star Wars}}''' and '''{{w|The Lord of the Rings}}'''. Below there is a [[#List of details and references|table]] listing all references to both of these movies and much more. For instance there are 19 references to SW and 6 to LOTR.

The largest part of the game is located on the '''right side''' of the play area and is mainly a world dominated by references to ''Star Wars''. Most noticeable is a recreation of [https://youtu.be/yHfLyMAHrQE?t=112 the opening scene] in the {{w|Star Wars (film)|first film}}, where {{w|Princess Leia|Princess Leia's}} space ship ''{{w|Tantive IV}}'' also known as ''[http://www.explainxkcd.com/wiki/images/8/82/1608_1015x1078y_Entire_Rebel_Blockade_Runner_zoom_out.png The Rebel Blockade Runner]'' is flying over [http://www.explainxkcd.com/wiki/images/3/33/1608_1015x1073y_Ponytail_in_the_dunes_zoom_out.png the desert] planet {{w|Tatooine}}. Here it is followed by the {{w|Star Destroyer}}, ''[http://starwars.wikia.com/wiki/Devastator Devastator]''. The [http://www.explainxkcd.com/wiki/images/0/04/1608_1015x1078y_Entire_Rebbel_Blockade_Runner_zoom_out_to_torpedoes_and_ground.png desert ground with these two space ships] above is the first you find to the right. Although in the game they are located inside the atmosphere, not as in the movie out in space, a fact that is [http://www.explainxkcd.com/wiki/images/1/1d/1608_1049x1090y_Atmosphere_worry_and_car_room_at_bottom_of_hull.png commented on] by [[Megan]] who looks out from an opening in the bottom of the Destroyer's hull.
:Megan: Is this ship designed to fly in the atmosphere like this?

Both ships are high above the ground, but there are three [http://www.explainxkcd.com/wiki/images/7/76/1608_1014x1076y_Entire_wires_from_ground_to_Runner.png wires from the ground] that connect (and thus guide you) up to ''The Runner'' and from there [http://www.explainxkcd.com/wiki/images/8/87/1608_1023x1085y_Entire_torpedoes_rain_from_Runner_to_Destroyer.png 100+ torpedoes], which are fired [http://www.explainxkcd.com/wiki/images/f/f1/1608_1018x1079y_Top_rear_end_of_the_Rebel_Blockade_Runner.png down on the Runner] coming [http://www.explainxkcd.com/wiki/images/5/5f/1608_1034x1091y_Torpedo_canon_below_Destroyer.png from the Destroyer] above, gives away the location of the Destroyer itself. The Destroyer is so high up in the air, that you would not be likely to find it by chance without these leads (or at least some of the several other hints from people on the ground [http://www.explainxkcd.com/wiki/images/f/f2/1608_1010x1073y_Cliff_with_rock_and_cactus.png looking up and reacting] or like [[White Hat]] looking from the tip of the [http://www.explainxkcd.com/wiki/images/2/21/1608_0995x1079y_Entire_Washington_monument_extra_zoom_out.png Washington Monument] and reacting [http://www.explainxkcd.com/wiki/images/6/6f/1608_0995x1083y_Tip_of_Washington_monument.png by saying]: "Uh, what the heck is ''that?!''.").

One of the main points (The Joke) of the entire game is the extreme size of [http://www.explainxkcd.com/wiki/images/c/cd/1608_Entire_Star_Destroyer.png such a Destroyer]. It takes up more space than the rest of the game (and most of the coins are located there). Inside the Destroyer there are many, many rooms, long corridors and deep shafts, even a [http://www.explainxkcd.com/wiki/images/5/58/1608_Entire_Cave.png huge cave] with trees and animals. At [http://www.explainxkcd.com/wiki/images/c/c7/1608_Vader_twice_and_emperor_on_and_near_bridge.png the bridge] we meet both {{w|Darth Vader}} and the Emperor himself, {{w|Palpatine}}. There are many other jokes related both to Star Wars and other movies and xkcd comics inside the Destroyer. For instance, Darth Vader discusses {{w|Steven Universe}}, bringing up Rose Quartz and Steven himself ([http://www.explainxkcd.com/wiki/images/3/39/1608_1031x1095y_Steven_Universe_family_and_ice_cream_prediction.png who can be found with the Crystal Gems] in a different part of the Destroyer).
:Darth Vader: But Steven's ''mother'' is a Crystal Gem...
There are also interesting things and references along the ground beneath the Destroyer, some of these are also Star Wars related like [http://www.explainxkcd.com/wiki/images/c/c9/1608_1038x1073y_Wedding_and_picnic.png the wedding scene] where {{w|Jabba the Hutt}} is mentioned.

To the '''left side''' is an entirely different world, although much smaller (shorter) than the one to the right. Here the main theme is ''The Lord of the Rings'' mainly with the presence of a [http://www.explainxkcd.com/wiki/images/6/6a/Entire_Volcano_zoom_out.png volcano] where for instance [http://www.explainxkcd.com/wiki/images/7/77/1608_0952x1087y_Ring_of_power_and_lave_floor_at_the_right_crater_top.png Megan tries to throw] in {{w|One Ring|''rings'' of power}}, as in [https://www.youtube.com/watch?v=FXpF3SUFaDw the scene] from the {{w|The Lord of the Rings: The Return of the King|last LOTR film}} where {{w|Frodo Baggins|Frodo}} fails and {{w|Gollum}} attacks inside the volcano {{w|Mount Doom}}, thus making it clear that the volcano in the game represents this volcano. Both Frodo, {{w|Sauron}} and {{w|Gandalf}} are mentioned in the game. The first two by name in the text. Two {{w|Eagle (Middle-earth)|great eagles}} are [http://www.explainxkcd.com/wiki/images/c/cb/1608_0956x1088y_Eagles_over_right_crater_top.png talking about Frodo] and {{w|J. R. R. Tolkien|Tolkien}}, Sauron's name is [http://www.explainxkcd.com/wiki/images/6/66/1608_0964x1078y_Megan_reading_for_children_about_Saurons_ring.png read up by Megan from a book], and [http://www.explainxkcd.com/wiki/images/a/a5/1608_0944x1083y_Rock_with_Gandalf_in_Lava_lake.png Gandalf is drawn as a wizard figure] in the crater and also his name is used in the [[#Messages in Play Area|message]] you receive if you collect [http://www.explainxkcd.com/wiki/images/f/f7/169_coins_fastest_way.PNG all possible coins].

The two worlds do conflict though, as an {{w|X-wing fighter}} is [http://www.explainxkcd.com/wiki/images/4/44/1608_0982x1077y_Gas_station_with_x-wing.png parked at a gas station] to the left in LOTR world, and Gandalf's famous quote ''You shall not pass!'' from his fight against the {{w|Balrog}} is modified by [[Cueball]] who is [http://www.explainxkcd.com/wiki/images/a/ad/1608_1026x1093y_Shall_not_not_pass_room_and_parachutes_at_one_of_two_ledges_at_bottom_of_hull.png ''not'' trying to block your path] to a coin inside a room in the Destroyer. This conflict could very well be a reference to the fact that {{w|Andy Serkis}} who played {{w|Gollum}} in LOTR, now plays the {{w|Supreme Leader Snoke}} in the new Star Wars movie, and [http://vignette3.wikia.nocookie.net/villains/images/6/64/Supremeleader.png/revision/latest/scale-to-width-down/270?cb=20151223201852 his appearance] as Snoke is not that much different from Gollum's. Snoke also delivers a line in the movie (about "bringing someone to me") that reminds one of Gollum when he talks about "the ring coming to me". Randall would not have known this last part at the time that this comic was released, but he would likely be aware of Andy Serkis' involvement.

Other themes are related to other movies, like a [http://www.telegraph.co.uk/film/star-wars-the-force-awakens/star-trek-fans-rivalry-george-lucas-roddenberry/ naughty reference] to {{w|Star Trek}} from inside [http://www.explainxkcd.com/wiki/images/b/bc/1608_1012x1078y_Bridge_on_the_Rebel_Blockade_Runner.png the bridge] of the Rebel Blockade Runner where a long-haired woman (maybe [[Danish]] since she obviously does this to annoy Star Wars fans and [[Hairbun]] behind her, which could represent Princess Leia with her [https://upload.wikimedia.org/wikipedia/en/1/1b/Princess_Leia%27s_characteristic_hairstyle.jpg special hair style]) delivers the following line taken from the Star Trek universe:
:Long haired woman: Captain's log, stardate November 24th, 2015...
:Hairbun: ''Augh!'' No!

Also references to video games are seen, best shown with the maze towards the back end of the Destroyer which are an almost [http://www.explainxkcd.com/wiki/images/e/e2/1608_Comparing_Prince_of_Persia_maze_with_real_level_1.png complete depiction] of ''[http://cdn.wikimg.net/strategywiki/images/a/a2/Princeofpersia_dos_level1.png Level 1]'' of the computer game ''{{w|Prince of Persia}}'' down to the three coins being in the place of three items to take in that game, and at least two of the opposing sword fighters in the correct places as well.

The comic/game and book were released only 3 weeks before the 7th Star Wars movie ''{{w|Star Wars: The Force Awakens}}'' was released on December 14, 2015. And this movie had already been referenced by Randall 7½ weeks earlier in [[1585: Similarities]], when another movie ({{w|The Martian (film)|The Martian}}) were released. It was a reference in the title text to the new robot ''BB-8'' that are featured in the Force Awakens. That the Star Wars section is thus so much larger than the LOTR section could be a hint to the fact that it is now 12 years ago that the last of those films were released, and although {{w|the Hobbit}} has been released as {{w|The Hobbit (film series)|three films}} over the previous three Christmases it was Star Wars that dominated the Christmas a month after this comics release.

===Reference to Thing Explainer===
Some of the scenes in this game are references to pictures in the new book that it celebrates. Here are some examples:
*The original comic that was the impetus for ''[[Thing Explainer]]'' in the first place, [[1133: Up Goer Five]], is also included in the book. These are both referenced in this game by the [http://www.explainxkcd.com/wiki/images/e/e2/1608_0976x1079y_Space_capsule_with_parachutes.png space capsule] used for reentry by the astronauts that flew to the moon using the {{w|Saturn V|Saturn Five}} rocket. This capsule is floating down over the plateau before the volcano to the left.
*In ''Sky Toucher'', the last entry explaining a sky scraper, there are several references to the game, one of these being the space capsule just mentioned above. Other references:
**Ponytail throwing a paper plane out, which she also does [http://www.explainxkcd.com/wiki/images/2/20/1608_1077x1107y_Tarkin_on_the_bridge_and_Ponytail_with_paper_plane.png below the bridge] of the Destroyer. (This is also a reference to [http://explainxkcd.com/1110 Click and Drag] where [http://imgs.xkcd.com/clickdrag/6n2w.png Cueball does the same], here even from a skyscraper).
**Cueball is setting up a kite and Ponytail is crawling up in the line. In the comic a small girl looking like Megan [http://www.explainxkcd.com/wiki/images/a/ae/1608_0970x1077y_Kite_and_weird_bug.png also has a kite]. Being up in a kite is also referenced in both [[235: Kite]] and in the title text of [[1614: Kites]] (from just a few weeks after the release of this comic.)
**There is a floor in the middle of the building with trees, just like there is a cave inside the Destroyer [http://www.explainxkcd.com/wiki/images/7/75/1608_1053x1093y_Lake_with_tree_birds_and_puma_on_rock_at_exit_in_the_bottom_left_side_of_the_cave.png with a tree "inside"].
**Cueball is holding a fishing rod out over the side of the building letting the hook hand in the air. The same [http://www.explainxkcd.com/wiki/images/5/58/1608_1014x1078y_Three_wires_and_reaching_up_to_anchors_in_Runner.png can be seen] under the Rebel Blockage Runner.
**Megan is using a skateboard in a strange ellipsoid-shaped room. This can be a reference both to where Megan is seen on a [http://www.explainxkcd.com/wiki/images/8/89/1608_1038x1095y_Hamsterball_and_stilts_room.png skate board inside a hamster ball] and to the [http://www.explainxkcd.com/wiki/images/7/7b/1608_1078x1111y_Globe_of_Death_at_the_top_of_the_Destroyer.png globe of death] at the top of the bridge on the Destroyer.
**There is a car in the top section of the tower (long away from the parking cellar in the basement). There are two [http://www.explainxkcd.com/wiki/images/1/1d/1608_1049x1090y_Atmosphere_worry_and_car_room_at_bottom_of_hull.png cars inside] the Destroyer, [http://www.explainxkcd.com/wiki/images/d/d4/1608_1048x1099y_Cueball_on_hood_of_car_room_and_a_giant_step_with_coins_at_top_of_hull.png one of them] deep inside with no easy access to the outside.
**Two people are standing on a cloud, one of them (Megan) jumps out from it. This is similar to the [http://www.explainxkcd.com/wiki/images/9/92/1608_0993x1112y_Top_of_floating_rock_island_with_base_jumpers.png two base jumpers] on the [http://www.explainxkcd.com/wiki/images/5/5c/1608_0994x1110y_Entire_floating_rock_island_zoom_out.png rock island].
*In the ''Red world space car'' explaining (about the {{w|Curiosity Rover}} on {{w|Mars}}) there are two references to the scenes around the Rebel Blockade Runner:
**Curiosity toasts a marshmallow over a fire as does Megan and Cueball over the exhaust pipe at [http://www.explainxkcd.com/wiki/images/f/f1/1608_1018x1079y_Top_rear_end_of_the_Rebel_Blockade_Runner.png the rear of the Runner].
**When Curiosity is set down on Mars by the {{w|Mars Science Laboratory}} (MSL), lowered down in wires below the MSL, the wires were released once the rover was down and then it flies away. In the book Megan is hanging from one of these wires when it flies away. This is similar to [http://www.explainxkcd.com/wiki/images/7/76/1608_1014x1076y_Entire_wires_from_ground_to_Runner.png Megan hanging in one of the anchor lines] going from the ground up to the Runner.
*In ''The USS Laws of the Land'' about the ship called {{w|USS Constitution}} (named after the {{w|United States Constitution}} which is explained in the entry just before this one), there are two references to this comic:
**There is both a giant octopus arm (marked as ''not real'') and a very large octopus under the ship. The shape of the octopus is the same as the [http://www.explainxkcd.com/wiki/images/b/b5/1608_1038x1094y_Giant_octopus_in_Destroyer.png silhouette of a giant octopus] inside the Destroyer.
***Octopuses like this are often used in xkcd, and they are also included in the explanation about ''Writing sticks'' (as the source of ink for the pens), as a motive in ''Picture taker'' and in ''Tree of life''. As an example from another xkcd comic with octopuses see for instance [[435: Purity]].
**There is also a bowling alley in the hull of the ship - a reference to the [http://www.explainxkcd.com/wiki/images/5/53/1608_0987x1075y_Hamsterball_bowling.png hamster ball bowling] in the left part of the world.
***Bowling is also used two other places in the book, namely on the suspension of the longest bridge in ''Tall roads'' and an bowling alley is used for measuring length in ''How to count things''.
*Ants are used three times in the book. A zoom-in on an ant is used to indicate size in ''Earth's past'' about geological ages of the Earth, and under the ''Tree'' in that explanation there is an ant colony where one ant is much bigger than the others; an ant queen, a clear reference to the [http://www.explainxkcd.com/wiki/images/d/d2/1608_1078x1095y_Ant_Queen_in_Destroyer.png ant queen] in the Destroyer. They are of course also in the ''Tree of life''.
*Basketball is shown twice in this comic ([http://www.explainxkcd.com/wiki/images/a/a4/1608_0936x1084y_Basketball_on_the_volcano.png left of volcano] and [http://www.explainxkcd.com/wiki/images/1/1d/1608_1067x1104y_Basket_ball_on_top_of_Destroyer.png on top of Destroyer]). In the book the size of different ''Playing Fields'' is one of the stories, and it included the field for basketball (i.e. ''circle ball'').
*The [http://www.explainxkcd.com/wiki/images/d/d0/1608_1046x1074y_Huge_foot.png huge foot] before the pyramid look like the foot used in the explanation for ''How to count things'' to describe the wight "one kilo" using a picture labeled ''one foot'' (i.e. not the length one foot, as the length is given in meters). A similar experience to the one in [[526: Converting to Metric]].
*The [http://www.explainxkcd.com/wiki/images/d/d2/1608_1084x1090y_Giant_light_bulb_room.png giant light bulb] towards the bottom rear end of the Destroyer is a reference to the entry on {{w|tungsten}} in the explanation for ''The pieces everything is made of'' (i.e. the {{w|periodic table}}). In the book a {{w|Incandescent_light_bulb|light bulb}} is shown and then an arrow points to the {{w|Incandescent_light_bulb#Filament|filament}} which is made of tungsten in the typical {{w|Thomas Edison|Edison}} light bulbs.
*In the explanation for ''Box that cleans food holders'' (Dishwasher) Ponytail yells ''Wheee!'' as she slides through a pipe inside the machine on her stomach (bottom left). This is similar to her position and movement in the [http://www.explainxkcd.com/wiki/images/c/c6/1608_Entire_Corridor_peristalsis_and_colon.png colon like structure] inside the Destroyer and Cueball also sliding in this colon yells ''Wheee!''
*In the explanation for ''Bending computer'' Ponytail comes racing on her bike with a laptop on top of the handlebars. She is also seen [http://www.explainxkcd.com/wiki/images/c/cd/1608_0958x1083y_Ponytail_racing_down_the_steep_slope_on_a_bike.png racing a bike down the slope of the volcano].

===Reference to other comics===
There are also many references to other xkcd comics, like the room at the front end of the Destroyer [http://www.explainxkcd.com/wiki/images/a/a7/1608_1004x1095y_Very_front_with_playpen_balls_pit_at_top_of_hull.png ball pit] filled with '''[[:Category:Playpen balls|playpen balls]]''', and two adults playing in it, like in [[150: Grownups]]. Also [http://www.explainxkcd.com/wiki/images/2/2e/1608_0980x1075y_Entire_well_zoom_out.png the well] in the left part of the world with [http://www.explainxkcd.com/wiki/images/8/82/1608_0980x1073y_Well_bottom.png a girl and a coin] at the bottom is likely a reference to the movie ''The Ring'', which has been referenced before in xkcd. Wells have also come up in xkcd in the early '''[[:Category:Well|Well series]]'''.

There have been many comics with electric skateboards as mentioned, which do not appear in this comic, but there is one example of a normal '''skateboard'''. This is [http://www.explainxkcd.com/wiki/images/8/89/1608_1038x1095y_Hamsterball_and_stilts_room.png used by Megan] in a room in the Destroyer, while she is inside a {{w|hamster ball}}. There is also [http://www.explainxkcd.com/wiki/images/5/53/1608_0987x1075y_Hamsterball_bowling.png another hamster ball], with a kid (looking like Megan) inside. It is used in a more than human sized {{w|ten pin bowling}} game to the left. '''Hamster balls''' is another item that has been [[:Category:Hamster Ball|prominently featured]] in xkcd.

In the weeks before, and especially the weeks after there were also other comics that had a subject which could refer back to Hoverboard in some ways. Maybe these comics were either influenced by the game, or the other way around so that relevant items were added to the game because of these other comics:
*[[1600: MarketWatch]] - the {{w|Washington Monument}} (an obelisk) is part of the skyline depicted, and this monument is the [http://www.explainxkcd.com/wiki/images/2/21/1608_0995x1079y_Entire_Washington_monument_extra_zoom_out.png first that is encountered] in the picture when going left from the play area, plus a [http://www.explainxkcd.com/wiki/images/d/dc/1608_0994x1074y_Base_of_Washington_monument.png comment at the base] of the monument to make sure we know it is the Washington monument, and another [http://www.explainxkcd.com/wiki/images/6/6f/1608_0995x1083y_Tip_of_Washington_monument.png comment at the top] of the monument referring to the {{w|Washington_Monument#Aluminum_apex|aluminum apex}} that constitutes the very tip of the monument, which was very expensive at the time it was installed in 1884, when aluminum was a rare metal as valuable as silver. Today it would not make anyone rich from the metal alone, although the tip would be worth a lot for other historical reasons, but this is not what Cueball's comment is about.
::Cueball to Megan at the bottom: Honestly, it doesn't even look that much like Washington.
::Cueball to White Hat at the tip: Look at that- solid aluminum! We´re gonna be rich!
*[[1610: Fire Ants]] - in this game there is a [http://www.explainxkcd.com/wiki/images/d/d2/1608_1078x1095y_Ant_Queen_in_Destroyer.png giant ant queen] inside the Destroyer talking with Cueball about laying eggs.
**See also [[1641: Hot Dogs]] where Cueball has a similar style conversation, with the same ''Eww'' ending as with the ant queen:
::Cueball: What's up?
::Ant queen: The usual. Poopin' out ants.
::Cueball: Eww.
*[[1611: Baking Soda and Vinegar]] - this is about super volcanoes, vs. [http://www.explainxkcd.com/wiki/images/6/6a/Entire_Volcano_zoom_out.png the Volcano], Mount Doom in the game as indicated by Megan [http://www.explainxkcd.com/wiki/images/7/77/1608_0952x1087y_Ring_of_power_and_lave_floor_at_the_right_crater_top.png throwing rings into the lava]:
::Megan at the edge of the volcano crater: One of these is probably a ring of power or whatever.
*[[1614: Kites]] - Megan is seen with a kite, and in this comics a small girl looking like Megan [http://www.explainxkcd.com/wiki/images/a/ae/1608_0970x1077y_Kite_and_weird_bug.png also has a kite] to the left towards Mount Doom.
*[[1620: Christmas Settings]] - another Star Wars reference to {{w|lightsaber}} noises in the title text. Lightsabers are featured twice in this comic, with [http://www.explainxkcd.com/wiki/images/b/bc/1608_1012x1078y_Bridge_on_the_Rebel_Blockade_Runner.png Ponytail practicing] on the Rebel Blockade Runner, and with a [http://www.explainxkcd.com/wiki/images/2/20/1608_1006x1095y_Pinata_and_Cueball_with_lightsaber_at_top_of_hull.png kid about to hit a Piñata] in the Destroyer.
*[[1623: 2016 Conversation Guide]] - a direct hoverboard reference, and complaint that they are not real yet (only [http://www.explainxkcd.com/wiki/images/0/01/1608_1048x1095y_Two_hoverboards_room.png in this game]).
*[[1630: Quadcopter]] - in this comic three quadcopters act together to abduct Cueball. Thus making them sentient, like the [http://www.explainxkcd.com/wiki/images/7/7c/1608_0950x1084y_Quadcopters_over_lava_lake_right.png quadcopter who is speaking to another] over the lava lake in the Mount Doom crater to the left.
::Right quadcopter: Remember: There's no such thing as good volcano footage taken by a quadcopter that survived.
*[[1632: Palindrome]] - a reference to the famous palindrome about the Panama canal: "''A Man, A Plan, A Canal: Panama''", and thus also to the [http://www.explainxkcd.com/wiki/images/0/0d/1608_1026x1073y_Ruins_with_Cueball_singing_of_Spiders_and_Panama.png song that Cueball sings] at the ruin to the right, where the first four lines is mashup of the palindrome and {{w|Spider-Man_(theme_song)|the Spider-Man theme song}} (see this [https://www.youtube.com/watch?v=SUtziaZlDeE video]):
::Cueball singing:
:::Spider-man
::::Spider-plan
:::Spider-canal
::::Spider-Panama
:::Gates let in
::::Spider boats
:::Flood the locks
::::Spiders float
:::''Look out!''
:::Spiders in both oceans.

*[[735: Floor]] Instead of pretending the floor is lava as in the comic, they stand by the lava pretending that it is the floor.

===Characters===
Almost all main [[:Category:Characters|characters]] in the xkcd gallery are used more than once, especially there are three characters that are used several times. Number one is of course [[Cueball]] (with close to 90 appearances) who is already shown at the [http://www.explainxkcd.com/wiki/images/6/6c/1608_1000x1074y_The_Play_Area.png starting point]. He is also the first character seen when walking both [http://www.explainxkcd.com/wiki/images/c/c0/1608_1004x1074y_Cueball_outside_play_area.png right] and [http://www.explainxkcd.com/wiki/images/d/dc/1608_0994x1074y_Base_of_Washington_monument.png left] (where he speaks the first line to the left).

Then follows [[Megan]] with at least 40 appearances, she is even shown twice in the same location three times, one of these three even occurs within one of the [http://xkcd.com/1608/1090:-1088+s.png small images]. She is also shown with Cueball in his first appearance to the left, and she is the first to speak a line to the right [http://www.explainxkcd.com/wiki/images/f/f2/1608_1010x1073y_Cliff_with_rock_and_cactus.png here].

Also [[Ponytail]] is well represented with 26 appearances (for instance [http://www.explainxkcd.com/wiki/images/2/2d/1608_0947x1073y_Antenna_cave_in_lair.png here)].

[[Hairy]] (with different hair styles) is used 7 times (for instance [http://www.explainxkcd.com/wiki/images/5/54/1608_Actual_Bridge_with_Vader_and_Tarkin.png here]) and [[Hairbun]] is used 5 times (for instance [http://www.explainxkcd.com/wiki/images/e/e4/1608_1054x1099y_Corridor_peristalsis_and_two_coin_rooms_at_top_of_hull.png here)].

Two of the main characters are used twice: [[Beret Guy]] ([http://www.explainxkcd.com/wiki/images/4/4f/1608_0990x1074y_If_loving_you_is_wrong_I_dont_want_to.png here] and [http://www.explainxkcd.com/wiki/images/2/21/1608_1020x1083y_Torpedoes_two_steps_above_Runner_with_Beret_Guy.png here]) and [[White Hat]] ([http://www.explainxkcd.com/wiki/images/6/6f/1608_0995x1083y_Tip_of_Washington_monument.png here] and [http://www.explainxkcd.com/wiki/images/d/d9/1608_1093x1074y_White_Hat_hiding_in_the_grass.png here]).

The only exception is that the main villain of xkcd [[Black Hat]] who is very hard to find. He is only [http://www.explainxkcd.com/wiki/images/6/68/1608_1069x1093y_Deer_and_exit_below_lamp_coin_and_Black_Hat_in_the_bottom_right_side_of_the_cave.png shown once] in the comic where he very uncharacteristically just sits and snores at the right wall in the cave inside the Destroyer (is it really him...?). The only other hint that he is not forgotten is that his hat can be seen [http://www.explainxkcd.com/wiki/images/b/bc/1608_1073x1074y_Ponytail_and_bird_black_hat_on_a_stick_and_Cueball_whistling.png on a stick] under the Destroyer after the three large T-like structures. And this is not that kind of stick characters Randall usually draws. But at least we now know where Danish has hidden it from him this time (see [[405: Journal 3]]). Given that his hat is stuck there, he could also be any of the Cueballs close by…

Also [[Blondie]] seems to be only represented once, while in her reporter mode while discovering a bug before the volcano as can be seen [http://www.explainxkcd.com/wiki/images/a/ae/1608_0970x1077y_Kite_and_weird_bug.png here].

There are also several characters that are not recognizable as either any of the standard xkcd characters or in any other way (see for instance a few of the [http://www.explainxkcd.com/wiki/images/a/a6/1037x1073y_Wedding.png wedding guests]). But there are possibly some of the minor characters are used like [[Danish]] at the bridge in the Blockade Runner ([http://www.explainxkcd.com/wiki/images/b/bc/1608_1012x1078y_Bridge_on_the_Rebel_Blockade_Runner.png here]) but this cannot be confirmed, she just looks like her and has some similarities teasing the Star Wars fan.

Several places in the comic it is clear from the size and the behavior that some of the characters are kids, see for instance the Blondie image mentioned above, where two kids looking like Megan and Hairy stand behind her, but they would in principle not be Megan or Hairy despite appearance, as these named characters are adults.

There are also many fictive people from different movies, books, and shows; for instance Darth Vader ([http://www.explainxkcd.com/wiki/images/f/fa/1608_1077x1109y_Darth_Vaders_talks_about_Steven_Universe_on_the_bridge_Megan_adjust_antenna.png here]), Gandalf ([http://www.explainxkcd.com/wiki/images/a/a5/1608_0944x1083y_Rock_with_Gandalf_in_Lava_lake.png here]) and Steven Universe ([http://www.explainxkcd.com/wiki/images/3/39/1608_1031x1095y_Steven_Universe_family_and_ice_cream_prediction.png here]) all three mentioned above, and some real life people: you can find {{w|Elon Musk|Elon Musk}}, who has a [[#Secret passages and hidden places|hidden lair]] under the Volcano (see [http://www.explainxkcd.com/wiki/images/7/73/1608_0945x1074y_Elon_Musks_cave_in_lair.png here]), and Gregor Mendel, hanging out on a Star Destroyer with a pea plant.

Furthermore, there are many animals (like [http://www.explainxkcd.com/wiki/images/b/b0/1608_1067x1094y_Gazebo_puma_deer_Cueball_with_bow_and_talk_of_Palpatine_in_the_middle_of_the_cave.png the puma and the deer]) in the cave, some even rather big like this [http://www.explainxkcd.com/wiki/images/b/b5/1608_1038x1094y_Giant_octopus_in_Destroyer.png octopus] or even gigantic like this [http://www.explainxkcd.com/wiki/images/d/d2/1608_1078x1095y_Ant_Queen_in_Destroyer.png ant queen] (all three from inside the Destroyer). There are also a couple of small Star Wars robots, one in a corridor in each space ship ([http://www.explainxkcd.com/wiki/images/d/df/1608_1034x1091y_Photon_canon_Tetris_piece_and_mini_robot_at_bottom_of_hull.png here from the Destroyer]).

===Extra Hoverboard pages===
*Since this comic is so big and complicated extra pages have been created to include much more information than is wished for on this main page (which is already of considerable size).
*These pages are listed here for convenience, but they are also listed in the relevant sections below:
**[[1608: Hoverboard/Transcript]] - The full transcript of the entire comic, as if you played the game can be found here. It is linked from the [[#Transcript|Transcript]] section.
**[[1608: Hoverboard/The whole image]] - A collection of different compilations of the whole Image. It is linked from the [[#Whole Image|Whole Image]] section.
**[[1608: Hoverboard/Images of secret passages]] - Images with an overview of the secret passages in the game. It is linked from the [[#Secret passages and hidden places|Secret passages and hidden places]] section.
**[[1608: Hoverboard/All image links]] It is linked from the [[#All images|All images]] section.
**[[1608: Hoverboard/Images coins]] It is linked from the [[#Coins|Coins]] section.
**[[1608: Hoverboard/Screen-shots]] It can be linked from several sections, but among others from the [[#Messages in Play Area|Messages in Play Area]] section.
**[[1608: Hoverboard/Images of individual scenes]] It will be linked from the [[#List of details and references|List of details and references]] section which will be using these images in the explanation.

==Transcript==
:[This transcript only covers the starting page as shown on xkcd: {{xkcd|1608}}. A full transcript of the entire comic can be found on this [[1608: Hoverboard/Transcript|page]].]


:[Cueball is shown on a hoverboard in the center of the comic. Around him is a simple maze with 12 yellow coins. Another Cueball without hoverboard is shown standing on one of the platforms to the right. The bottom half of the window is black. Right of where Cueball stands is a ramp. Behind the ramp is a terminal. There is lots of space left of the maze, outside the maze. Text is only written in white below in the black area. The first part of the text is written below Cueball on hoverboard. Then there is an arrow pointing to the terminal and a label. Finally there is a line of text at the bottom of the black area.]

:[Under Cueball:]
:My new book,
:''Thing Explainer,''
:comes out today!
:To celebrate, here's
:a small game.

:[Under the arrow below the terminal.]
:Deposit
:coins here

:[At the bottom:]
:Use the arrow keys to move

:['''For the full transcript of the entire comic as it could be played see [[1608: Hoverboard/Transcript]].''']
:['''For a transcript only of the text for the scenes with text in the comic see the [[#Table with references|table]] below.''']

==Trivia==
*There is as usual [[:Category:No title text|no title text]] for these interactive comics. But there is actually one listed in the [http://xkcd.com/1608/info.0.json info page] on xkcd. But this text: "Return to the play area", is never shown as a normal title text. But it will erroneously be shown in the unofficial mobile versions of the site.
**This is actually the [[#Messages in Play Area|text that is shown blinking red]] at the bottom of the screen when leaving the Play Area.

==Viewers==
*{{xkcd|1608|1608: Hoverboard}} (native game, use arrows)

Apart from using one of the a full maps below there are also other [[#Cheats and Exploits|cheating possibilities]] where people (or the game) have implemented ways to explore the game world more easily.

*Though you can download the full view, the easiest way to browse it is through a {{w|Zooming user interface}}:
**[http://1101b.com/xkcd1608/ Fully zoomable map w/ toggleable coins and passages]. '''[Recommended]''' - includes all of the game, zoom-able and with toggle-able passages and coins. Courtesy of [https://www.reddit.com/user/lanzaa lanzaa] on this [https://www.reddit.com/r/xkcd/comments/3u4sy1/xkcd_1608_hoverboard/cxbyn86 reddit thread]
**[http://codepen.io/KyleDavidE/full/605dc87b614ff6b2bd716f4c6f640203/ Quickly hacked overview]. Missing the rock island in the sky. Courtesy of [https://www.reddit.com/user/kyledavide kyledavide] on the same [https://www.reddit.com/r/xkcd/comments/3u4sy1/xkcd_1608_hoverboard/cxbyn86 reddit thread].
*Below are several examples of full pictures:
**[http://paste.click/DsPuSL Full-size-png-map]. '''Do not open this directly in the browser!''' It might take a few minutes to download. Full resolution picture of the entire game (also without coins) - courtesy of [https://www.reddit.com/user/0x90-0x90 0x90-0x90] on the same reddit [https://www.reddit.com/r/xkcd/comments/3u4sy1/xkcd_1608_hoverboard/cxbyn86 thread].
**[http://www.explainxkcd.com/wiki/images/9/92/thumb_1608.jpg Incomplete compilation] of the entire game area (note the missing pinnacle of the Washington Monument. It also missed the floating island above the monument).
**[https://i.imgur.com/uYryxss.png Full png-map]. Simple picture of the entire game without coins - courtesy of [https://www.reddit.com/user/luke_in_the_sky luke_in_the_sky] on the same reddit [https://www.reddit.com/r/xkcd/comments/3u4sy1/xkcd_1608_hoverboard/cxbyn86 thread].
**[https://i.imgur.com/rNU9ZgN.png Full png-map green for non existing tiles]. Here's the transparent spaces in green - also courtesy of [https://www.reddit.com/user/luke_in_the_sky luke_in_the_sky] on the another [https://www.reddit.com/r/xkcd/comments/3u4sy1/xkcd_1608_hoverboard/cxc1245 reddit thread].
**[https://dl.dropboxusercontent.com/content_link/6wIRprxQ7rh3EQGEPer7zCdiaCDeXFM3m2tW9aDd3ECJu9Kgz4s5LPLjjHnJN6SR/file Black areas that you can walk through in red]. This includes the walls and ceilings or other surfaces that you can stand on or hit into. So not only the secret passages are in red.
*See also under the [[#Whole Image|Whole Image]].
**And see also the collection of different versions of [[1608: Hoverboard/The whole image|the whole image]]!

===Standalone application===
*Standalone cross-platform open source remake of hoverboard is available, with some extra features:
** Off-line play
** Arbitrary game window size
** Persistent games state on exit
** Ability to save up to 10 locations and teleport to them at will
** Explorable world map
* Links:
** [https://github.com/AMDmi3/hoverboard-sdl Project on GitHub]
** [https://github.com/AMDmi3/hoverboard-sdl/releases Downloads] (Windows binaries available)

===Metroid XK===
*Satirical crossover with the classic game Super Metroid. Explore the world as Samus in search of powerups and secrets, while encountering danger at every turn.
[[File:1608_MetroidXK.png]]
* [http://forums.xkcd.com/viewtopic.php?f=7&t=113083&start=120#p3913102 more information]
* [http://www.xeloh.com/Releases#MetroidXK download]

==Messages in Play Area==
*Different amounts of coins collected in the play area, will give different messages in yellow on the black part at the bottom of the screen when delivered to the coin collector.
*Below is a table with examples of what may be written depending on the number of coins. The time (and the amount when there is a range with similar rating) is just chosen at random (although in a realistic range). To get above 17 you of course have to leave the play area and come back again...
**In Chrome and Firefox there is not message for those above 9 coins, except 17, 42 and 169. But in Internet Explorer there is still a message for those cases: "Undefined".
**See [[1608: Hoverboard/Screen-shots#Coin collecting messages|screen-shots]] or click on the links from the number of coins in the table below:

:{| class="wikitable"
!# coins
!Text when depositing this number of coins
"X" is the number of coins collected
|-
|[http://www.explainxkcd.com/wiki/images/e/e3/0_coins.PNG 0 coins]
|style="background-color:black;"| '''You got 0 coins in 1 second''' You successfully avoided all the coins.
|-
|[http://www.explainxkcd.com/wiki/images/0/00/1_coin.PNG 1 coin]
|style="background-color:black;"| '''You got a single coin in 1 second''' It's a start.
|-
|[http://www.explainxkcd.com/wiki/images/8/83/2_coins.PNG 2]-[http://www.explainxkcd.com/wiki/images/0/05/4_coins.PNG 4 coins]
|style="background-color:black;"| '''You got X coins in 3 seconds''' Not bad!
|-
|[http://www.explainxkcd.com/wiki/images/f/fc/5_coins.PNG 5]-[http://www.explainxkcd.com/wiki/images/3/30/9_coins.PNG 9 coins]
|style="background-color:black;"| '''You got X coins in 12 seconds''' Terrific!
|-
|[http://www.explainxkcd.com/wiki/images/7/74/10_coins.PNG 10]-[http://www.explainxkcd.com/wiki/images/5/55/16_coins.PNG 16 coins]
|style="background-color:black;"| '''You got X coins in 10 seconds'''
|-
|[http://www.explainxkcd.com/wiki/images/7/7e/17_coins.PNG 17 coins]
|style="background-color:black;"| '''You got 17 coins in 15 seconds''' You found all the coins! Great job!
|-
|[http://www.explainxkcd.com/wiki/images/b/bd/18_coins.PNG 18-41 coins]
|style="background-color:black;"| '''You got X coins in 430 seconds'''
|-
|[http://www.explainxkcd.com/wiki/images/1/1c/42_coins.PNG 42 coins]
|style="background-color:black;"| '''You got 42 coins in 460 seconds''' No answers here.
|-
|[http://www.explainxkcd.com/wiki/images/d/d8/45_coins.PNG 43-168 coins]
|style="background-color:black;"| '''You got X coins in 460 seconds'''
|-
|[http://www.explainxkcd.com/wiki/images/f/f7/169_coins_fastest_way.PNG All 169 coins]
|style="background-color:black;"| '''You got 169 coins in 1457 seconds''' Are you Gandalf?
|}

*Once you leave the area you get a [http://www.explainxkcd.com/wiki/images/a/ae/Return_to_the_play_area.PNG flashing warning message] in red letters at the bottom of the screen:
:{| class="wikitable"
|style="background-color:black;"| '''Return to the play area'''
|}
*This message flashes three times over 1.2 seconds (the message only disappears for about 150 ms each time)
*Then there is a pause for about 1.3 seconds and then this repeats for a total of 5 repetitions, a total of 15 flashes in just about 11.3 second seconds.
*The message will stop immediately if you re-enter the play area during this period.
*If you re-enter later it will flash once you leave again.
*For the program the play area is anything within and below the walls just outside the maze you start in.
**More precisely you first leave the play area if you pass over the middle part at the top of the walls
**Or if you make one jump from standing on top of the walls.

==Animation==
*There have before been several interactive comics and also a few with animations. But these animations have typical been something along the lines of flashing text or changing lights.
**This comic is the first with a character that is specifically changing position in animation style.
**Apart from this there are also flashing text when leaving the play-area and text that appears and disappears when handing in coins at the terminal as described above under [[#Messages in Play Area|Messages in Play Area]].
**This also happens with the text written to begin with explaining how to play the game: ''Use the arrow keys to move'' which disappears when touching the keys.
*Here are two images showing two kinds of animation of the hoverboard Cueball.
**The first image shows the eight standard animation that can easily be seen. They are
***Standing still facing right (starting position)
***Standing still facing left
***Moving left along flat ground (lifting arms)
***Moving right along flat ground (lifting arms)
***Jumping while facing left looking up with hoverboard pointing down
***Jumping while facing right looking up with hoverboard pointing down
***Falling while facing left looking down with hoverboard pointing up
***Falling while facing right looking down with hoverboard pointing up
[[File:1608 Hoverboard Cueball standard animation.png]]
*But there are several in between drawings of the hoverboard Cueball turning from left to right and even more from right to left.
**The second image shows eight in between animations (together with four from above)-
**Not all possible positions are necessarily caught in this collage here, but there is only a limited amount of them and none of them last for more than a split second.
**They have been sorted so it could look like Cueball has just turned to the right standing still, then jumping while turning right, then turning right while in jump, to finish the turn while falling.
**Image 2, 3, 5 and the last are the same used in the image of standard animations
[[File:1608 Hoverboard Cueball turning animation.png]]

==Whole Image==
[[File:1608 full tiny.png|none|frame|Whole Image zoomed very much out, without coins. The part visible at the beginning is marked red.]]
*See also a collection of different versions of [[1608: Hoverboard/The whole image|the whole image]]!

==Secret passages and hidden places==
There are many places where you can disappear behind black areas, as not all of these are solid. You might have discovered this yourself if you stayed in the play area, as the platform below the inverted parentheses is only solid at the edges. Some of these places out of the play area even hide secret passages or hidden rooms. You can reveal them by [https://explainxkcd.com/wiki/index.php/1608:_Hoverboard#Cheats_and_Exploits activating goggles mode].

One notable hidden area is {{w|Elon Musk|Elon Musk's}} volcano lair, which is located beneath the lava in the crater of Mount Doom. It can be difficult to find your way in here without using goggles mode even if you know it is there. (For more details, see [[1608: Hoverboard/Images of secret passages|secret passages]].)

Another hidden place is the floating rock island that floats high above the {{w|Washington Monument}}, which is almost the highest point with solid ground. It is located just outside the left edge of the play area. This island is almost impossible to find by chance, as it takes around 30 seconds of repeatedly pressing the Up Arrow key to reach it from the top of the Monument. Even if you go up enough, you will almost miss it, as the Monument is not aligned to the island. (The [[#Viewers|maps]] can help you if you're having trouble finding it.)

As there are two coins on the floating rock island and four coins in the lair below the lava, it is very hard to find all the coins. There are even several coins that are hard to find because they just float in the air nowhere near any drawn things, or at least no things you can see before seeing the coin. They may hang in the air a few jumps above the ground, or in one case more than a seconds drop below the Destroyer. So getting all coins without help from a map would truly make you a [http://www.explainxkcd.com/wiki/images/f/f7/169_coins_fastest_way.PNG Gandalf-like wizard]. (See more regarding [[#Coins|coins]] below.)

==Boundaries==
The larger game world is physically bounded in the left, right, and down directions, with invisible walls to each side and the ground binding you from going any further down than the deepest depression or hidden caves... In the upward direction, there is in principle also an invisible wall, but while jumping up Cueball on his hoverboard will appear to continue upwards as long as you press to jump, in addition, the longer the up arrow is pressed repeatedly, the longer it will take for [[Cueball]] to fall down again once the button is released. So although there are no new things above, you can keep jumping as high as you like and will then fall proportionally longer to get back to where you started out. Until maps were created it could have been possible that there were some hidden unexplored parts. Not long after the games release, however, the [[#Viewers|maps]] was created, covering the entire game.

To the far right is a platform at the top of a high pole. This platform turns out to be a nest (like a stork nest). Above the three eggs are ten coins (the most collected in one place outside the play area, and these are closer together).

To the far left is a blond haired woman with a hair bun looking right. In front of her are four coins on a row. She tells about the Destroyer (should you have gone this way without finding it yet).
:Woman: In the sky, beyond the mountain, I saw a starship.

Regarding the highest part you find the highest straight rise up in the air to something other than white, under the Rock Island just left of and very high above the Washington monument. Standing on the large rock on top of this floating rock island you are standing almost as high up as possible. There is a coin here one step down from the top of this large rock. This is the highest located coin in the game. Going over the edge also represents the largest possible drop in the game. However this is not the highest point where you can stand, as the very top of the bridge on the Destroyer is just a tat higher. But there is no coin there. Also this is not close enough to the end of the Destroyer that you can jump down to the ground, so the drop from the rock is by far the longest possible.

The deepest part of the lair should have been the lowest point, but as this lair's entrance is up in the volcano crater, it does not reach down to become the lowest part of the image. There is also a deep well (half way left to the Volcano) with a girl at the bottom, that goes just as deep. But the deepest part where you can stand is in the ocean below the Destroyer where a rogue wave is talking to Cueball:
:Wave: I know rogue waves seem implausible, but we're a straightforward consequence of the equations of fluid dynamics.
:Cueball: ...But you can talk?
:Wave: The equations are really complicated.
When standing under this wave you cannot get any lower. There are coins in all three locations, but as the coin is above the top of the high wave, it may be that it is the coin in the well that is the deepest. The coin under the lava is not at the bottom of the room so that is not so low.

Taking a route that takes the hoverboard through all the extremes mentioned above, that is the lowest, highest, left and rightmost coins and solid positions within the game can be done in about 9 minutes and 30 seconds. See a picture here of the coin delivery after such a trip that [[1608: Hoverboard/Screen-shots#Reaching all the boundaries|reached all the boundaries]].

==All images==
*Coordinates for the images are given in (X, Y) coordinates with the starting point at [http://xkcd.com/1608/1000:-1074+s.png (1000, 1074)].
*In total there are 3440 images on xkcd that can be accessed via links of this format: http://xkcd.com/1608/1000:-1074+s.png [This link is for the (1000, 1074) starting point image.]
**'''Here is a page with a table of all the links to images: [[1608: Hoverboard/All image links|All image links]].'''
**'''Note:''' This is a large page which may take some time to load.
*The individual images are so small, and cut of at "random" so they do often go straight down through a person, and you can rarely see both a person and the (full) text belonging to them in the same image.
**See for instance this [http://www.explainxkcd.com/wiki/images/a/a6/1037x1073y_Wedding.png wedding scene] to the right under the Destroyer, which only makes sense when these four images are put together (as they are in the link):
***[http://xkcd.com/1608/1037:-1073+s.png (1037, 1073)]
***[http://xkcd.com/1608/1037:-1074+s.png (1037, 1074)]
***[http://xkcd.com/1608/1038:-1073+s.png (1038, 1073)]
***[http://xkcd.com/1608/1038:-1074+s.png (1038, 1074)]
**It will thus not make sense to make a transcript of all individual images, but instead, only of a complete setting (or maybe a part of a setting.)
*Maximum possible number of images in the x-direction is 180.
**Going left will decrease X down to 928 (so 82 pictures left of the starting point in X-direction)
**Going right will increase X up to 1107 (so 107 pictures left of the starting point in X-direction)
*Total number of (possible) images in the y-direction is 44.
**Going down will decrease Y down to 1069 (so 5 pictures down from the starting point in Y-direction)
**Going up will increase Y up to 1112 (so 38 pictures up from the starting point in Y-direction)
***The "(possible)" is included because the number of possible active Y-images depends on the X-coordinate, as there are several non-existing images that are not just totally white (i.e. blank images), but which does not even have a number/or active link on xkcd.
***But the top active image over the floating island and over the top of the bridge section of the Destroyer all have Y coordinate 1112. There are only 20 active images at this Y-coordinate.
***The same by the way also goes for the x coordinate. Above X=1076 there are also many non existing images with not active link.
* All possible images are thus spread over a 180 x 44 grid, with a possible 7920 images. But 4480 of these images are non existing on xkcd, but you can travel through them in the game, as they are just shown as completely blank/white empty air in the game.
**If you try to load one of the completely blank images like [http://xkcd.com/1608/1000:-1077+s.png (1000, 1077)], three images above the starting point, you will get an error message. There are only 76 (vs 180) images at this Y-coordinate.
***Note there are several completely empty/white images that are active, but those can be loaded on xkcd like the one below the missing picture mentioned above: [http://xkcd.com/1608/1000:-1076+s.png (1000, 1076)].
**There are no blank images in completely black areas, like inside structures or under ground. And below Y = 1077 all 180 possible Y-images exist for all X-coordinates, from Y = 1069 to 1076.
***For instance the image below the starting point is completely black [http://xkcd.com/1608/1000:-1073+s.png (1000, 1073)], and so are the next three below.
***The bottom images at Y = 1069 has a white border at the bottom: [http://xkcd.com/1608/1000:-1069+s.png (1000, 1069)].
***All the images at Y = 1069 are the same except the one at the very right edge because at this edge there is also a white border to the right [http://xkcd.com/1608/1107:-1069+s.png (1107, 1069)] (this is not the case to the far left at [http://xkcd.com/1608/928:-1069+s.png (928, 1069)]).
***You will never see the images at Y = 1069 in the game. Actually you will neither see anything of the images with Y = 1070 or 1071. And there is nothing that is not completely black for Y = 1069 to 1072. First from Y = 1073 are there active images which includes white.
***This picture with the wave at [http://xkcd.com/1608/1022:-1073+s.png (1022, 1073)] gives the lowest point where the hoverboard Cueball can actually stand.
***Since you will sink into the water here, you are almost standing on the top of the Y = 1072 image: [http://xkcd.com/1608/1022:-1072+s.png (1022, 1072)], which is of course completely black.
***In places where you can stand in a low position on Y = 1073 images you will actually see some part of the images with Y = 1072, not that it makes any difference since they are all black.
*Here is a list of the places where there are most images at a given X coordinate:
**At X = 1078, right under the highest point of the Destroyers bridge [http://xkcd.com/1608/1078:-1112+s.png (1078, 1112)] there are 36 active images. Thus even here 8 images are missing between the bottom active image below the Destroyer and the first active near the ground level at Y=1076. (Y = 1077 to 1084 are missing).
**These missing Y coordinates are active in other places, for instance under the torpedo rain at X = 1020 where all Y images are active up until 1100 - 32 images. But since the last 12 images above this are missing it is still 4 less than under the bridge.
**Under the floating island, where there are active images at the top Y = 1112, like [http://xkcd.com/1608/990:-1112+s.png (990, 1112)], there is also the Washington monument below which goes high up, but still there are only 20 active Y images, as there are no active images between 1084 and 1109 (24 missing in between).
**Over the volcano's edges the highest images directly connecting to solid ground is found at Y = 1087. One image above this is also active making the height here going up to 1088, thus also making it 20 active Y images. The only '''not''' completely white image over the volcano at Y = 1088 is the one with the eagles [http://xkcd.com/1608/956:-1088+s.png (956, 1088)].

==Dimensions==
{{incomplete|Here should be an overview of how large the picture is (physical distances and time to traverse it. Speed of hoverboard etc.) Could be based on known monuments sizes.(I added a description but am leaving the tag until someone smarter can verify.)}}
*It takes 1 minute 52 s to reach from the starting point to the left edge. While we do not have a definite speed for the hoverboard, we can obtain the dimensions of the map by using the Washington monument. Since it is referenced by name we can assume that the dimension is properly applied. In this case, the monument is 100 pixels tall (when viewed on my photo editor) and the actual monument is 555' meaning that 1 pixel= 5.55'. The whole map is 1920 pixels wide, for a length of 10,656' or 3247.9488m.

==List of details and references==
{{incomplete|The table with references should be filled out with explanations. Some explanations need to be reviewed}}
*On this page [[1608: Hoverboard/Images of individual scenes]], images covering all individual scenes (in full size and with coins) has been saved and uploaded to be used for reference in the [[#Table with references|table]] below from where they are linked directly.
**There are also several overviews in smaller resolution
**Almost all these images have been made using this [http://1101b.com/xkcd1608/ Fully zoomable map w/ toggleable coins and passages] which includes all of the game, zoom-able and with toggle-able passages and coins.
***Courtesy of [https://www.reddit.com/user/lanzaa lanzaa] on this [https://www.reddit.com/r/xkcd/comments/3u4sy1/xkcd_1608_hoverboard/cxbyn86 reddit thread]

===Explanation of the table===
*The contents of the comic are documented in the [[#Table with references|table]] below.
**It first goes through the entire image from left to right along the ground
***I.e. going up the volcano and down in the lair, down the well and up to the top of the Washington Monument. Only exception so far is that it here goes to the rocky island in the sky. Then it continues right along the ground, only following the wires up to the bottom of the Rebel Runner and then after going over the pyramid it ends up at the far right
**Then it goes back to the Rebel Runner, and after that follows the torpedoes up to the Star Destroyer-
**Finally it goes through the Star Destroyer from tip to rear in four sections, taking everything within each section top to bottom, before moving on to the next section.
**The table can be sorted on all columns, so the above is only valid until any sorting takes place.
*In the table are the following columns:
**Descriptions of the scene depicted in the overview links.
***If the scene is a zoomed out overview that covers the images below this scene's description has been written in '''bold text'''.
***This can be used as a guide to where in the image the scenes are located.
***That is, until any sorting begins.
**Transcript.
***Any text has only been transcribed once. If some scenes overlap, the text has only been written in the first or the one where the text is most central.
***Also any overview that has been zoomed out never has any transcript - these have been listed as (N/A)
***Scenes with no text has written (None) in the transcript.
***The use of parenthesis for those with no transcript makes it possible to sort on the transcript to get all the scenes with text to the top.
**Overview links.
***There can be more than one, even many, but the first will always be the overview.
***If there are secret passages or other situations where it will be interesting to see why the hoverboard can disappear beneath the surface (like in the ocean) then two versions of the images have been included.
***The second version is called ''Hidden passages in red'' as it has these passages changed to appear in red instead of black.
**Tile images on xkcd.
***For those images that are zoomed to 100% (i.e. not the zoomed out overviews) there is also a link to the defining image tile on xkcd.
***In cases where there are more than one interesting image tile in one scene (maybe because there is actually two or more distinct scenes), there can be one more link in the ''Other'' tile column.
**References.
***Three things are referenced many times, and each has their own column so the table can be sorted on these
****SW: Star Wars
****LOTR: The Lord of the Rings
****TE: Thing Explainer
***Other. There is also a column for "other" types of references so they can also be sorted, without drowning in the three recurring types of references.
****These have some further sorting by starting with Comics: or Movies: etc.
**Explanations is in the last column.
***So far lots of scenes still miss explanations, and some are not complete.
***Red text has been used to make this clear.
***If updating this and making a good enough explanation delete the red text.

===Table with references===
*See [[#Explanation of the table|explanation of the table]] above.
**Hint: Open the overview links in a new window and return to this one for the next image and for reading the text.
*Abbreviations:
**'''SW''': Star Wars
**'''LOTR''': The Lord of the Rings
**'''TE''': Thing Explainer
{|class="wikitable sortable"
!
!
!
! colspan="2"|Tiles (X, Y)
! colspan="4"|References
!
|-
! Description
! Transcript
! Overview links
! Defining
! Other
! S W
! L O T R
! T E
! Other
! Explanation
|-
|'''Everything Left of play area.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/d/d4/1608_Everything_Left_of_play_area.png Overview] [http://www.explainxkcd.com/wiki/images/e/e4/1608_Everything_Left_of_play_area_red.png Hidden passages in red]
|Overview
|
|
|
|
|
|Section of the image revealed when going left of the starting point.
|-
|Entire Volcano plateau.
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/d/d5/1608_Entire_Volcano_plateau_zoom_out_extra.png Overview] [http://www.explainxkcd.com/wiki/images/3/3d/1608_Entire_Volcano_plateau_zoom_out_extra_red.png Hidden passages in red]
|Overview
|
|
|
|
|
|About halfway from the Play Area to the volcanos slope, there is a steep plateau. This is the part left of this plateau.
|-
|Woman with white hair bun at the left end of world looking right.
|
:Woman: In the sky,
:Woman: beyond the mountain,
:Woman: I saw a starship.
|[http://www.explainxkcd.com/wiki/images/6/63/1608_0928x1082y_At_the_end_of_all_things.png Overview]
|[http://xkcd.com/1608/928:-1082+s.png (928, 1082)]
|
|Y
|
|
|
|The woman at the left end of the world tells about the Star Destroyer in the right part of the world. There are four coins in front of her to anyone coming this far.
|-
|Coin and boulders.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/6/63/1608_0933x1083y_Coin_and_boulders.png Overview]
|[http://xkcd.com/1608/933:-1083+s.png (933, 1083)]
|[http://xkcd.com/1608/935:-1083+s.png (935, 1083)]
|
|
|
|
|A single coin hangs in the air above the rocky ground with giant boulders.
|-
|'''Entire Volcano.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/6/6a/Entire_Volcano_zoom_out.png Overview] [http://www.explainxkcd.com/wiki/images/0/01/1608_Entire_Volcano_zoom_out_red.png Hidden passages in red]
|Overview
|
|
|Y
|
|Comic: [[1611: Baking Soda and Vinegar]]
|The comic released a week after this one is about a super volcano made in a science fair experiment. As can be seen there is a lair beneath the lava lake. The entrance is revealed by the other link that turns the hidden passages to red. It is for sure possible to get stuck in the lava lake, as everything becomes black in the game when going beneath the surface.
|-
|'''Left Volcano Top.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/4/4e/1608_0943x1087y_Left_Volcano_Top_zoom_out.png Overview]
|Overview
|
|
|
|
|
|A zoom out of the left rim of the volcanic crater.
|-
|Basketball on the volcano.
|
:Ponytail: OK, as soon as it erupts, go for the dunk. Our sweet moves will be preserved for all eternity!
|[http://www.explainxkcd.com/wiki/images/a/a4/1608_0936x1084y_Basketball_on_the_volcano.png Overview]
|[http://xkcd.com/1608/936:-1084+s.png (936, 1084)]
|
|
|
|Y
|
|This is a reference to {{w|Pompeii}} a Roman town-city near modern Naples, which has become famous when it was discovered that it had been preserved in the ash when it was mostly destroyed and buried under 4 to 6 m (13 to 20 ft.) of volcanic ash in the eruption of {{w|Mount Vesuvius}} in AD 79. When it was {{w|Pompeii#Rediscovery|found again}} it turned out that people had been surprised by the ash, and thus buried alive. During the excavation, plaster was used to fill in the voids in the ash layers that once held human bodies. This allowed one to see the exact position the person was in when they died. This is what Ponytail wishes for her and Megan, when the volcano they are standing on erupts, a rather morbid wish. She wants their sweet basketball moves to be preserved for eternity. In ''Playing Fields'' in TE basketball is mentioned. It is also played on top of the Destroyer close to the bridge. In this case the coin is on top of the basket, but too large to go into the hoop.
|-
|Old man walking up the volcano.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/5/5d/1608_0937x1085y_Old_man_walking_up_the_volcano.png Overview]
|[http://xkcd.com/1608/937:-1085+s.png (937, 1085)]
|
|
|
|
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|Is it an old man who just walks up a mountain, or a young man using a walking stick? It makes quite a difference to how this scene is viewed.
|-
|Duck at the left crater top.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/4/41/1608_0940x1087y_Duck_at_the_left_crater_top.png Overview]
|[http://xkcd.com/1608/940:-1087+s.png (940, 1087)]
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|A duck is sitting at the top of the crater. There are several birds in this comic. Another duck looking the other way is found on top of the flag pole near the base of the Washington Monument.
|-
|Megan’s treasure hoard.
|
:Megan: Gooooold!
:Megan: Goold!
:Bags: $ $
|[http://www.explainxkcd.com/wiki/images/4/43/1608_0941x1084y_Megans_treassure_hoarde.png Overview]
|[http://xkcd.com/1608/941:-1084+s.png (941, 1084)]
|[http://xkcd.com/1608/941:-1083+s.png (941, 1083)]
|
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|In the side of the crater there is a small cave where Megan has found a treasury hoard and she is celebrating all the gold she has found, including two coins.
|-
|'''Entire Lava lake.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/b/b1/1608_0946x1083y_Entire_Lava_lake_zoom_out.png Overview] [http://www.explainxkcd.com/wiki/images/0/09/1608_0946x1083y_Entire_Lava_lake_zoom_out_red.png Hidden passages in red] [http://www.explainxkcd.com/wiki/images/f/f4/1608_0942x1081y_Lava_lake_left.png Zoom in left part] [http://www.explainxkcd.com/wiki/images/8/82/1608_0942x1081y_Lava_lake_left_red.png Hidden passages in red] [http://www.explainxkcd.com/wiki/images/0/02/1608_0943x1083y_Left_Lava_lake_zoom_out.png Entire left part] [http://www.explainxkcd.com/wiki/images/7/75/1608_0943x1083y_Left_Lava_lake_zoom_out_red.png Hidden passages in red] [http://www.explainxkcd.com/wiki/images/d/d6/1608_0946x1080y_Lava_lake_Upper_shaft_red.png Shaft in lake in red] [http://www.explainxkcd.com/wiki/images/9/94/1608_0947x1081y_Lava_lake_center.png Zoom in central part] [http://www.explainxkcd.com/wiki/images/2/25/1608_0947x1081y_Lava_lake_center_red.png Hidden passages in red] [http://www.explainxkcd.com/wiki/images/f/f7/1608_0949x1083y_Right_Lava_lake_zoom_out.png Entire Right part] [http://www.explainxkcd.com/wiki/images/b/ba/1608_0949x1083y_Right_Lava_lake_zoom_out_red.png Hidden passages in red] [http://www.explainxkcd.com/wiki/images/3/3f/1608_0944x1076y_Lava_lake_very_bottom_of_shaft_and_shaft_in_lair.png Shaft into lair below] [http://www.explainxkcd.com/wiki/images/c/c0/1608_0944x1076y_Lava_lake_very_bottom_of_shaft_and_shaft_in_lair_red.png Hidden passages in red]
|Overview
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|These images only cover the part beneath the surface where there is actually still lava, as can be seen in the images where ''Hidden passages in red''. Only the top of the lair below is shown here. From the hidden passage it is here possible to see how to enter this lair. In the images that shows the hidden part the two loose boulders that float (or are outcrops) in the right part of the lake can be seen as well as the two other holes in the lava lakes floor, which all explain why it is easy to get stuck in the lake once you go below the surface and move around. Since everything is black, you do not even know if the game still works and many people may have given up, maybe reloading after not being able to get on with the game. There is no place in the lake where you can get really stuck, as long as you just push upwards while changing direction from left to right, you are bound to get out sooner or later.
|-
|Rock with Gandalf in Lava lake.
|
:Megan: If you breathe out through you nose a little as you jump in, it can keep you from getting lava in you nasal passages.
:Cueball: Artex!
|[http://www.explainxkcd.com/wiki/images/a/a5/1608_0944x1083y_Rock_with_Gandalf_in_Lava_lake.png Overview] [http://www.explainxkcd.com/wiki/images/f/fa/1608_0944x1083y_Rock_with_Gandalf_in_Lava_lake_red.png Hidden passages in red]
|[http://xkcd.com/1608/944:-1083+s.png (944, 1083)]
|
|
|Y
|
|Film: {{w|The Neverending Story}}
|The wizard on the rock represents Gandalf from LOTR. What Megan tells Cueball works fine with water, not so much with lava. The horse Artax (pronounced Artex in the film) [https://www.youtube.com/watch?v=y688upqmRXo drowns in the swamp of sadness] while Atreyu tries to save it and yells its name. Drowning in a swamp sucks, but doing so in lava will make death swifter. Both situations, however, indicate that you can actually go into the lava. If playing for the first time and becoming uncertain what would happen if the hoverboard touched the lava, the player might actually not even try to go into the lava, thus for certain would miss finding the lair beneath the lava.
|-
|Quadcopters over lava lake right.
|
:Right quadcopter: Remember: There's no such thing as good volcano footage taken by a quadcopter that survived.
|[http://www.explainxkcd.com/wiki/images/7/7c/1608_0950x1084y_Quadcopters_over_lava_lake_right.png Overview] [http://www.explainxkcd.com/wiki/images/b/b2/1608_0950x1084y_Quadcopters_over_lava_lake_right_red.png Hidden passages in red]
|[http://xkcd.com/1608/950:-1084+s.png (950, 1084)]
|
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|
|Comics: [[1630: Quadcopter]] and in general those about [[:Category:Robots|Robots]] and [[:Category:Artificial Intelligence|AI]]
|The comic was released shortly after this one, and is about AI quadcopters that abduct Cueball. One of these {{w|quadcopters}} tells the other that no one will think much of their volcano footage if they actually survive. I.e. they have to get too close to the bubbling surface to survive before they actually obtain the footage wished for. It sounds like it tries to instill courage in them to perform this deadly task. There is a coin below the left copter. Drones has become a [[:Category:Drones|recurrent subject]] xkcd.
|-
|'''Entire Lava lair.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/6/69/1608_0946x1075y_Entire_Lava_lair_zoom_out.png Overview] [http://www.explainxkcd.com/wiki/images/e/e0/1608_0946x1075y_Entire_Lava_lair_zoom_out_red.png Hidden passages in red]
|Overview
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|The three rooms of the volcanic lair (and the entrance haft in the image with hidden passages in red).
|-
|Trending on twitter cave in lair and Lava lake bottom shaft.
|
:Cueball: What news of the world above? Please, tell me- what's hot and viral? ''What's trending on Twitter?!!''
|[http://www.explainxkcd.com/wiki/images/6/6e/1608_0944x1079y_Trending_on_twitter_cave_in_lair_and_Lava_lake_bottom_shaft.png Overview] [http://www.explainxkcd.com/wiki/images/2/2a/1608_0944x1079y_Trending_on_twitter_cave_in_lair_and_Lava_lake_bottom_shaft_red.png Hidden passages in red]
|[http://xkcd.com/1608/944:-1079+s.png (944, 1079)]
|[http://xkcd.com/1608/945:-1079+s.png (945, 1079)]
|
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|Comics with [[:Category:Social networking|Social networking]]
|Cueball has been stuck below the lava for some times without access to the internet, and he now craves news from the world above. But it is not really news stories he craves but only the hot and viral videos and what is trending on {{w|Twitter}}. To be addicted to social networks and viral videos is probably a real infliction and it is a pain for Cueball to not be able to get on-line. Two coins are behind him.
|-
|Elon Musk’s cave in lair.
|
:Left Cueball: I always assumed Elon Musk's volcano lair would be like... Tropical. And ...Well, ''pleasant''.
:Elon Musk in the high chair: Back to your desks, swine!
|[http://www.explainxkcd.com/wiki/images/7/73/1608_0945x1074y_Elon_Musks_cave_in_lair.png Overview]
|[http://xkcd.com/1608/945:-1074+s.png (945, 1074)]
|[http://xkcd.com/1608/946:-1074+s.png (946, 1074)]
|
|
|
|Comics with [[:Category:Comics featuring Elon Musk|Elon Musk]]
|It turns out that this is {{w|Elon Musk's}} lair. Having a secret lair with a hidden entrance is an often uses trope in films. Often it would be the villain (like in a {{w|James Bond}} film) that has such a place, but also heroes, like {{w|Batman}}, uses such hiding places. The joke here is that Cueball has assumed that Elon Musk, a very rich and enterprising man, that could be one of these megalomaniacs that might end up being a super villain, would have a bit more class over his secret lair. It also turns out that Elon sits in the cave and shouts at his workers to get back to work, even calling them names. There is also a coin here.
|-
|Ground symbol in lair.
|
:Ponytail: So ''this'' is where it is.
|[http://www.explainxkcd.com/wiki/images/2/2d/1608_0947x1073y_Antenna_cave_in_lair.png Overview]
|[http://xkcd.com/1608/947:-1073+s.png (947, 1073)]
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|The antenna looking item hanging from the ceiling is the embodiment of the {{w|Ground_%28electricity%29#Electronics|Earth ground symbol}} commonly used in circuit diagrams for electronics. So this is where the Earth is grounded in "real life" and finally Ponytail has found it. To protect themselves i their long search for this Ponytail and Megan seem to be wearing {{w|Antistatic_wrist_strap|antistatic wrist straps}}. This may also be a reference to the Circuit Diagram comic in which a ground is labeled as "bury deep, but not too deep"
|-
|'''Right Volcano Top'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/7/70/1608_0953x1087y_Right_Volcano_Top_zoom_out.png Overview] [http://www.explainxkcd.com/wiki/images/b/b8/1608_0953x1087y_Right_Volcano_Top_zoom_out_extra.png Extra zoom out] [http://www.explainxkcd.com/wiki/images/7/75/1608_0953x1087y_Right_Volcano_Top_zoom_out_extra_red.png Hidden passages in red]
|Overview
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|A zoom out of the right rim of the volcanic crater. In the extra zoom out the eagles can be seen as well, they are high enough to be missed entirely when moving along the crater surface.
|-
|Ring of power and lave floor at the right crater top.
|
:Megan: One of these is probably a ring of power or whatever.
:Girl with hair bun: Let's play a game where the lava is the floor of a house.
|[http://www.explainxkcd.com/wiki/images/7/77/1608_0952x1087y_Ring_of_power_and_lave_floor_at_the_right_crater_top.png Overview]
|[http://xkcd.com/1608/952:-1087+s.png (952, 1087)]
|[http://xkcd.com/1608/953:-1087+s.png (953, 1087)]
|
|Y
|
|
|Megan tells Cueball that one of the many rings she throws into the crater is probably a {{w|One Ring|''ring'' of power}}, a reference to [https://www.youtube.com/watch?v=FXpF3SUFaDw the scene] from the {{w|The Lord of the Rings: The Return of the King|last LOTR film}} where {{w|Frodo Baggins|Frodo}} fails and {{w|Gollum}} attacks inside the volcano {{w|Mount Doom}}, thus making it clear that the volcano in the game represents this volcano. From her last comment, ''or whatever'', it seems she doesn't care too much, which make it clear, from the LOTR universe, that neither of these rings in the one ring. It would not have be this easy throwing them into the lava if it had been. There seems to be 16 rings, which is less than the other rings that are ruled by the one ring, the 9 for the humans, the 7 for the dwarfs and the 3 for the elves (19 plus the one ring 20 rings in total).

The two girls are playing a dangerous game, the exact opposite of the normal version of the children’s game {{w|Hot lava (game)|Hot lava}}, where they pretend the floor in the house is made out of lava, and that you die if you touch it. However, in this version of the game they pretend to play that the lava is the floor in a house, and they may then just walk out into the lava pool, where they would die.
|-
|Megan sliding down slope on snow sleigh.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/1/15/1608_0956x1085y_Megan_sliding_down_slope_on_snow_sleigh.png Overview]
|[http://xkcd.com/1608/956:-1085+s.png (956, 1085)]
|[http://xkcd.com/1608/956:-1086+s.png (956, 1086)]
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|Megan is sliding fast down the crater side. She will hit a jump near the coin, and would probably fly a considerable distance given the speed she seems to have.
|-
|Eagles over right crater top.
|
:Left eagle: Tolkien said Frodo left the cloak somewhere over here.
:Right eagle: Can't ''he'' just fix it?
:Left eagle: He doesn't want to rewrite that chapter.
|[http://www.explainxkcd.com/wiki/images/c/cb/1608_0956x1088y_Eagles_over_right_crater_top.png Overview]
|[http://xkcd.com/1608/956:-1088+s.png (956, 1088)]
|
|
|Y
|
|
|Did Frodo lose his cloak in the books? Is this a reference to any real plot holes (not just using eagles) about the cloak being lost somewhere but then back later? If you can dismiss this, then make a note below. If there is something please explain Two of the {{w|Eagle (Middle-earth)|great eagles}} from LOTR flies above the right crater top. In this situation the eagles are being used to find {{w|Frodo|Frodo's}} cloak, with one eagle complaining that "he", meaning {{w|J. R. R. Tolkien}} the author of LOTR, should just fix the issue without the eagles. This is a reference to the eagles use in LOTR as a {{w|Deus ex machina|deus ex machina}} and the [http://periannath.com/feature/why-doesnt-frodo-just-ride-an-eagle-to-mount-doom/ supposed plot hole] of the eagles not [http://tolkiengateway.net/wiki/Eagles#Flying_the_Ring_to_Mount_Doom flying the ring to mordor]. However, this was of course not possible before Sauron and his ringwraiths were defeated.
|-
|Ponytail racing down the steep slope on a bike.
|
:Ponytail: 114 mph!
:Ponytail: Suck it, previous downhill volcano record-holder!
|[http://www.explainxkcd.com/wiki/images/c/cd/1608_0958x1083y_Ponytail_racing_down_the_steep_slope_on_a_bike.png Overview]
|[http://xkcd.com/1608/958:-1083+s.png (958, 1083)]
|
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|
|Ponytail is trying to break the world record for downhill race on a bike on a volcano. The {{w|Cycling_records#History_of_downhill_records|record}} at the time of this comic was from 2002 and was 107 mph (172 km/h) easily beaten by the 114 mph (183 km/h) that Ponytail reaches as she mocks the previous record holder. There were two different records, one for prototype bike by {{w|Éric Barone}} (the 107 mph (172 km/h)) and one for serial production bicycle (102.5 mph (164.95 km/h) set in 2011 by {{w|Markus Stöckl}}). She beat them both and it looks like a very ordinary bike she rides. The all-time record for downhill racing is not using the ashy slopes on volcanos but from racing on snow, and here the record is not in danger from Ponytail as it is a staggering 138 mph (222 km/h) again with a lesser record for serial produced bikes of 130 mph (210 km/h). She will soon hit a rock outcrop so hopefully she has very good brakes...
|-
|Tell my wife why you left me there, and Megan and Cueball with a device
|
:Right Cueball: If I don't make it back...
:Right Cueball: ...Tell my wife...
:Right Cueball: ...Where I am...
:Right Cueball: ...And why you left me there…
|[http://www.explainxkcd.com/wiki/images/c/ce/1608_0960x1081y_Tell_my_wife_why_you_left_me_there.png Overview]
|[http://xkcd.com/1608/960:-1081+s.png (960, 1081)]
|[http://xkcd.com/1608/961:-1081+s.png (961, 1081)]
|
|
|
|
|''If I don't make it back'' is a common [http://tvtropes.org/pmwiki/pmwiki.php/Main/IfIDoNotReturn trope] in films and books used when the speaker is about to make a noble sacrifice. The speaker will then usually tell the other to go tell his wife that he died bravely or that his friends should remember him. There is even a [https://vimeo.com/58319575 song] with the same title by {{w|Tracy Lawrence}}. In Cueball's case, both him and his companion are attempting to scale a dangerous mountain and neither are inclined to sacrifice their own lives for the other. Cueball appears to be struggling, climbing on all fours while his friend is standing. Subverting the trope, he attempts to guilt trip his friend into helping him.

Also here are Megan with some kind of device and Cueball on top of a large boulder. Maybe they are investigating the environment on the volcanic slope. Cueball has just discovered the coin hanging above them.
|-
|It becomes a V7 if the volcano erupts and Ponytail and Cueball on the slope
|
:Megan: This is currently a V2, but it becomes a V7 if the volcano erupts.
|[http://www.explainxkcd.com/wiki/images/7/75/1608_0962x1080y_It_becomes_a_V7_if_the_volcano_erupts.png Overview]
|[http://xkcd.com/1608/962:-1080+s.png (962, 1080)]
|[http://xkcd.com/1608/963:-1079+s.png (963, 1079)]
|
|
|
|
|Megan and Cueball climb a very steep part of the mountain slope. In {{w|bouldering}}, the relative difficulty of a bouldering problem is graded using the {{w|Grade (bouldering)|V scale}}. She exclaims that at the moment the climb is only a V2, but if the volcano erupts this would increase to V7. The joke is that the shaking ground and the lava resulting from the eruption would obviously make it harder to complete the bouldering problem without getting killed. In reality, passing environmental conditions do not affect the grade that a bouldering problem receives.
|-
|Megan reading for children about Sauron’s ring.
|
:Megan: ”The time has come” the Walrus said, and put on a Sauron's ring…
|[http://www.explainxkcd.com/wiki/images/6/66/1608_0964x1078y_Megan_reading_for_children_about_Saurons_ring.png Overview]
|[http://xkcd.com/1608/964:-1078+s.png (964, 1078)]
|[http://xkcd.com/1608/964:-1079+s.png (964, 1079)]
|
|Y
|
|
|The line "”The time has come” the Walrus said, to talk of many things" is from the poem {{w|The Walrus and the Carpenter}} by {{w|Lewis Carroll}}'s book {{w|Through the Looking-Glass}}, the sequel to {{w|Alice's Adventures in Wonderland}}. {{w|Sauron}} is the main enemy in LOTR, the one who has made the ring, and now needs it to gain his powers back. In this mixed poem the second line is changed but follows the same rhyme scheme. But although ''rings'' would have rhymed with ''things'', it of course have to ''ring'' as the {{w|walrus}} can only put the {{w|One Ring|one ring of power}} on, while uttering the now much more ominous sounding phrase ''The time has come''. Megan is reading this poem/story at the base of the volcano Mount Doom where the ring was created and later destroyed. Like Frodo, Sauron is one of the characters from LOTR who is only mentioned, not shown, in the comic.
|-
|Vaping Earth.
|
:Cueball: The Earth is vaping.
|[http://www.explainxkcd.com/wiki/images/b/bd/1608_0969x1077y_Vaping_Earth.png Overview]
|[http://xkcd.com/1608/969:-1077+s.png (969, 1077)]
|[http://xkcd.com/1608/968:-1077+s.png (968, 1077)]
|
|
|
|
|{{w|Vaping}} is a term used instead of smoking for the use of electronic cigarettes. There is even a game called the {{w|Vaping game}} for blowing extra large clouds of vapor out while using these substitutes for cigarettes. Cueball remarks that here it is the Earth that does so, due to the volcanic activity of the nearby volcano.
|-
|'''Left of play area to Kite.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/a/a9/1608_Left_of_play_area_to_Kite.png Overview] [http://www.explainxkcd.com/wiki/images/8/80/1608_Left_of_play_area_to_Kite_red.png Hidden passages in red]
|Overview
|
|
|
|
|
|This is the area from below the volcano's slope and towards the play area. There are several hidden places and pools that can be seen in the second image link.
|-
|Kite and weird bug.
|
:Mom: Check out this one weird bug, discovered by a local mom.
:Girl: Oh my God, mom, stop saying everything like that.
|[http://www.explainxkcd.com/wiki/images/a/ae/1608_0970x1077y_Kite_and_weird_bug.png Overview] [http://www.explainxkcd.com/wiki/images/a/a4/1608_0970x1077y_Kite_and_weird_bug_red.png Hidden passages in red]
|[http://xkcd.com/1608/970:-1077+s.png (970, 1077)]
|[http://xkcd.com/1608/972:-1077+s.png (972, 1077)]
|
|
|Y
|Comic [[1614: Kites]] and in general the [[:Category:Kites|kite category]]. Also the [[:Category:Clickbait|Clickbait category]]
|The comic was released only two weeks after this game, and although it is clearly a girl in this comic, she looks like Megan who sets up the kite in the next comic. There is also a kite in ''Sky Toucher'' in TE and kites is a recurring theme in xkcd.

The mother that discovers the bug is [[Blondie]]. She talks like she is one of the {{w|clickbait}} headlines used for getting people to click in on the link generally aimed at generating online advertising revenue, which fits nicely with her recurring theme of as a news anchor. Her daughter is tired of this, especially as it seems like the mother speaks like that all the time. The girl may be embarrassed by this, especially if she is with a friend rather than a brother. Maybe the mother has been reading too many clickbait news on-line? As noted in the other references ''clickbait'' is a recurring theme in xkcd. The mother is near a small lake, so it is likely that there is plenty of insects and other bugs. It is possible to sink into the lake as can be seen in the second image with the hidden parts shown in red.
|-
|Space capsule with parachutes.
|
:Bird thinking: I don't remember laying these but ''wow'' they're already flying. Gonna be awesome when they hatch.

:Cueball: Yes! My phone has a signal.
:Voice from inside: How many new likes did we get during reentry?
:Cueball: I'm checking!
|[http://www.explainxkcd.com/wiki/images/e/e2/1608_0976x1079y_Space_capsule_with_parachutes.png Overview]
|[http://xkcd.com/1608/976:-1079+s.png (976, 1079)]
|[http://xkcd.com/1608/976:-1080+s.png (976, 1080)]
|
|
|Y
|Comic : [[1133: Up Goer Five]]
|The book TE was based on the comic ''Up Goer Five'' which was about the rocket that took this space capsule to the moon. When it lands it uses three large parachutes to slow down after the main brake-down during reentry. On top of these sits a bird looking like a hen. It is a hen that can think, but it is still not very clever. It believes that this is three eggs, and is amazed that they are already flying before they hatch, which is of course ridiculous, but they do float in the air...

The astronauts inside (two at least, but there should be three if it was one of the moon landing missions) has just been waiting to get close enough to Earth again that they can get a signal on their smart phones. Cueball is even opening the hatch during descend to increase this chance, which would be highly dangerous. Also normally they would land in water (which will though not be the case this time). The reason he does this is that they wish to know how many more likes they (and their mission) has received during the reentry. This would have been relevant if the moon landings had taken place today. There where no social media or internet back in 1969. This is similar to the Cueball who is trapped in the lava lair without connection to Twitter.
|-
|Girl running to other girl and small forest.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/3/30/1608_0978x1077y_Girl_running_to_other_girl_and_small_forrest.png Overview]
|[http://xkcd.com/1608/978:-1077+s.png (978, 1077)]
|[http://xkcd.com/1608/976:-1077+s.png (976, 1077)]
|
|
|
|
|Just two young girls playing near a forest of low trees. But with the space capsule above the forest.
|-
|Entire well - zoom out.
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/2/2e/1608_0980x1075y_Entire_well_zoom_out.png Overview] [http://www.explainxkcd.com/wiki/images/0/06/1608_0980x1075y_Entire_well_zoom_out_red.png Hidden passages in red]
|Overview
|
|
|
|
|Comics in the [[:Category:Well|Well series]].
|There are many similarities in this well to the well series. Someone is looking into a well that has the same general appearance and there is a person inside which turned out to be the case in [[568: Well 2]]. People throw coins into it and there is a coin at the bottom in the game (although above the water.)
|-
|Well top.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/7/70/1608_0980x1077y_Well_top.png Overview]
|[http://xkcd.com/1608/980:-1077+s.png (980, 1077)]
|
|
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|
|Cueball looks into the deep well.
|-
|Well bottom.
|
:Girl: I'm not a ghost. I just like wells.
|[http://www.explainxkcd.com/wiki/images/8/82/1608_0980x1073y_Well_bottom.png Overview] [http://www.explainxkcd.com/wiki/images/a/aa/1608_0980x1073y_Well_bottom_red.png Hidden passages in red]
|[http://xkcd.com/1608/980:-1073+s.png (980, 1073)]
|
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|At the bottom of the well in the water (see also the hidden passages image) is a girl. Above to the left of her is a coin. Maybe thrown in by Cueball at the top. Ghost living in wells is a common theme, for instance there is a Japanese movie {{w|Banchō Sarayashiki}} whose [http://www.imdb.com/title/tt0202946/releaseinfo English title] is ''Ghost in the Well''. So this is why this real girl explains that she is actually not a ghost, she just like wells and thus likes to sit in the cold water at the bottom of wells. This could be very dangerous, and she will probably have a hard time getting up. It is also a very deep well, so falling into this well might very well be lethal. There are also many stories (in this case also real stories like the one about {{w|Jessica McClure}}) about kids that fall into wells, some of them surviving being stuck for several days in the wells. Also in movies this story is often used, for instance in {{w|Batman Begins}} the young Bruce Wayne falls down a dry well and is attacked by a swarm of bats, subsequently developing a fear of bats.
|-
|Entire gas station with birds above
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/b/b3/1608_0982x1079y_Gas_station_with_birds_above_with_coin_on_string.png Overview] [http://www.explainxkcd.com/wiki/images/8/83/1608_0982x1079y_Gas_station_with_birds_above_without_coin_on_string.png Without coin]
|Overview
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|The two birds with a coin between them flying above the gas station is way too high up, to be discovered when just moving normally over the gas station, even jumping once up from the highest spot. This is thus one of several coins that are easily missed. There are more explanation this scene where these two individual scenes are described.
|-
|Gas station with x-wing.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/4/44/1608_0982x1077y_Gas_station_with_x-wing.png Overview]
|[http://xkcd.com/1608/982:-1077+s.png (982, 1077)]
|[http://xkcd.com/1608/983:-1077+s.png (983, 1077)]
|Y
|
|
|
|Megan has managed to land her {{w|x-wing}} fighter from the rebel fleet in Star Wars right next to a standard gas station. And she has planned to fill her space ship up. That it could run on petrol for cars seems highly unlikely. The question is if she has already filled it up and is heading back with the handle to the gas stander, or if she has just discovered that the hose is not long enough to reach all the way under the wing to the fighter. It will have taken considerable skills to land this close to the station without hitting the cover over the stander. Ponytail is sitting in the shop with a coin. This is the first coin to be discovered when going left from the play-area. There is a long stretch without coins to begin with. The coins on the rock island in the sky it on this stretch, but so far above that most people would miss them altogether. There is also a coin with two birds straight above the right wing on the X-wing. But about three jumps up, so it is easy to miss. the To get into the shop you need to go over the stander and back. Why Cueball have crawled up in the roof is not clear. But maybe he is enjoying the view over the cliff that is to the right of the station. There is a stop sign to the left, but there seems to be no road that way. Maybe that is why you should stop...
|-
|Birds with coin.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/7/7e/1608_0982x1079y_Birds_with_coin.png Overview] [http://www.explainxkcd.com/wiki/images/9/9e/1608_0982x1079y_Birds_without_coin.png Without coin]
|[http://xkcd.com/1608/982:-1079+s.png (982, 1079)]
|
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|Film: {{w|Monty Python and the Holy Grail}}
|In the film it is discussed if two swallows could carry a coconut between them on a string as the two birds do with the coin here. First when the coin has been taken, can the string between the birds be seen (see the other image). The birds are three jumps above the X-wing below, and this coin is thus easily missed by the players. In the film the horses are simulated with the sound of two coconuts shells being hit together. Someone asks how they happened to be in England and there is discussion about migratory birds like {{w|swallows}} and the possibility that they have brought the coconuts along with them. But the consensus is that they cannot do this by themselves the coconut being to heavy, but then it is suggested that two swallows could carry it on a string between them. Later in the film someone is seen actually tying two birds together to a coconut. In this comic, we now know how the coins have been transported through the image...
|-
|Our kingdom from a cliff.
|
:Cueball: Everything the light touches is our kingdom.
:Girl: What's with the shadowy place over there?
:Cueball: That is beyond our borders.
:Girl: No, I mean what object casts a shadow over a whole region?
:Cueball: Oh, that's god. He lives over there.
|[http://www.explainxkcd.com/wiki/images/a/a0/1608_0986x1076y_Our_kingdom_from_a_cliff.png Overview]
|[http://xkcd.com/1608/986:-1076+s.png (986, 1076)]
|[http://xkcd.com/1608/986:-1075+s.png (986, 1075)]
|
|
|
|Film: {{w|The Lion King}} and comic: [[1504: Opportunity]] as well as [[:Category:The Lion King|The Lion King category]]
|Cueballs lines is from The Lion King and has been used directly before in the comic Opportunity. Randall has made several references to the film in xkcd, and it is obvious that he was very affected by this film that came out when he was just the right age.

Cueball is talking to a child version of Ponytail, whose mother may be the one climbing up the cliff side below. The first three lines of the quote goes as in the film, but then it turns out that the girl is properly referring to the Star Destroyer that would be clearly visible from this cliff as it covers almost the entire right part of this world from just beyond the play-area. (They do not look high enough to see the rock island in the sky, and it would also not cast shadow over an entire region.) As it is not certain players coming here have already been to the right to see the Destroyer it is not necessarily clear that the reply from Cueball should apply to the Destroyer. But if it does then it would be the Emperor Palpatine that he reefers to as God. The emperor is on board the Destroyer near the bridge at the very top rear end of the space ship and has God like powers. It could however also just be a general reference to the {{w|God}} and thus be inferred as if God cast a shadow over an entire region (country). Maybe just in general as if he has a place in the sky that cast a shadow (like sitting on a cloud). Alternatively it could be the people who believe too much in any God, that can be viewed as living under a shadow, as they will not try to see any reality if it does not fit with their religious beliefs.
|-
|Hamster ball bowling.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/5/53/1608_0987x1075y_Hamsterball_bowling.png Overview]
|[http://xkcd.com/1608/987:-1075+s.png (987, 1075)]
|[http://xkcd.com/1608/989:-1074+s.png (989, 1074)]
|
|
|Y
|Comics: [[:Category:Hamster Ball|Hamster Ball category]]
|There have been several xkcd comics with human sized hamster balls, and there is even one more in this comic up in the Destroyer. In this scene it is two young girls that use the hamster ball as a bowling ball in a human sized {{w|ten pin bowling}} game. Hopefully the little girl with the hair bun behind the pins get away in time if it is a strike. It is the first time hamster ball and bowling has been matched, but in TE there are bowling alleys both on the ship ''The USS Laws of the Land'' and on the suspension of the longest bridge in ''Tall roads'' and such an alley is also used for measuring length in ''How to count things''. One of the many large trees that are found in the drawing is standing alone in this scene. Most other places there are more than one tree together.
|-
|If loving you is wrong I don’t want to and Beret Guy following insects
|
:Cueball: If loving you is wrong, I don't want to.
|[http://www.explainxkcd.com/wiki/images/4/4f/1608_0990x1074y_If_loving_you_is_wrong_I_dont_want_to.png Overview]
|[http://xkcd.com/1608/990:-1074+s.png (990, 1074)]
|[http://xkcd.com/1608/991:-1074+s.png (991, 1074)]
|
|
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|Song (or quote): {{w|(If Loving You Is Wrong) I Don't Want to Be Right}}
|A reference to either the [http://krexy.com/if-loving-you-is-wrong general love quote] or maybe more likely to the song [https://www.youtube.com/watch?v=FvJj7SN9EWI performed most notably] by {{w|Luther Ingram}}. Recently (2014), there has also been a TV series produced called {{w|If Loving You Is Wrong (TV series)|If Loving You Is Wrong}}.

The quote is very romantic, because the speaker is stating that if it is wrong to love a specific person, the speaker chooses to be in love and does not wish to be right. However, Cueball twist the quote quite a lot, saying instead that if it is wrong to love Ponytail then he does not want to love her at all - taking all romance out of the statement.

Also in this scene is one of only two instances where Beret Guy appears. Typical of his past appearances, he seems to be occupied by following a small flying insect through the tall grass.
|-
|'''Entire Washington monument'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/2/21/1608_0995x1079y_Entire_Washington_monument_extra_zoom_out.png Overview]
[http://www.explainxkcd.com/wiki/images/a/ae/1608_0995x1079y_Entire_Washington_monument_extra_zoom_out_red.png Hidden passages in red] [http://www.explainxkcd.com/wiki/images/7/7a/1608_0995x1078y_Middle_of_Washington_monument_zoom_out.png Central hidden passage] [http://www.explainxkcd.com/wiki/images/6/6d/1608_0995x1078y_Middle_of_Washington_monument_zoom_out_red.png Hidden passages in red]

|Overview
|
|
|
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|Comic: [[1600: MarketWatch]]
|The tallest man made structure on the ground in this game is the {{w|Washington Monument}} which recently before the release of this comic was refereed to in the mentioned comic. As can be seen in the hidden passages images there are two secret passages, one at the bottom (see this scene for more) and one in the middle of the monument. The one in the central part of the monument is actually quite large, and as can be seen in the images zooming in on the central part there is also a fault line in the monument at the base of this hidden passage. But it doesn't really lead to anywhere interesting. The fault line could be a reference to the {{w|Washington_Monument#2011_earthquake_damage|earthquake damage}} from 2011 where several stones cracked.
|-
|Base of Washington monument with Cueball and Megan
|
:Cueball: Honestly, it doesn't even look that much like Washington.
|[http://www.explainxkcd.com/wiki/images/d/dc/1608_0994x1074y_Base_of_Washington_monument.png Overview] [http://www.explainxkcd.com/wiki/images/1/16/1608_0994x1074y_Base_of_Washington_monument_red.png Hidden passages in red]
|[http://xkcd.com/1608/994:-1074+s.png (994, 1074)]
|[http://xkcd.com/1608/995:-1074+s.png (995, 1074)]
|
|
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|
|At the base of the Washington Monument Megan and Cueball is looking up at it, and Cueball complains that it doesn't even look like {{w|Washington, D.C.|Washington}}. By "Washington" he could be referring to the city of Washington DC or to the real Washington monument, but he is probably referring to the first US President George Washington, since monuments often depict (look like) the person they are dedicated to but the real Washington monument is not meant to look like Washington himself. Cueball seems to have expected all presidential monuments to include a statue of the honored president and is confused and disappointed when the monument fails to meet his expectations. Of course since this is the only Washington based building in the game it is true that the place doesn't look like the city. If he refers to the monument then it can be questioned if this is because the monument is not an exact replica (in proportions and/or scale). In any case it is clearly meant as an indicator that this is supposed to look like the monument, and with the tips apex being made of aluminum (see that scene) as on the real monument, there can be no doubt what is referenced. It is possible to get to the left side of the monument without going up to see the tip, if the player immediately understands the sign with the white arrow that points to a hidden passage through the base of the monument, as can be seen in the second image with the hidden passages shown in red.

To the left of the monument there is a flag pole with a blown out flag. It is all black, but it should be the {{w|Flag of the United States|the Stars and Stripes}} as there are fifty flag poles with the US flag (one for each [[1653: United States Map|state]]) surrounding the monument in a circle. On top of the pole there sits a duck looking left. Towards the end of the world to the left on top of the left volcanic rim there also sits a similar duck looking right.
|-
|Tip of Washington monument with Cueball and White Hat
|
:Cueball: Look at that- Solid aluminum!
:Cueball: We´re gonna be rich!
:White Hat: Uh, what the heck is ''that?!''
|[http://www.explainxkcd.com/wiki/images/6/6f/1608_0995x1083y_Tip_of_Washington_monument.png Overview]
|[http://xkcd.com/1608/995:-1083+s.png (995, 1083)]
|[http://xkcd.com/1608/995:-1084+s.png (995, 1084)]
|
|
|
|
|The tip of the monument is actually {{w|Washington_Monument#Aluminum_apex|made of solid aluminum}} and at the time this {{w|aluminum}} apex was installed it was a rare metal as valuable as {{w|silver}}, but today it is maybe about 1/300 as valuable as silver. So Cueball and White Hat will not become rich based on the metal value. Of course if they did steal the tip of such a famous monument, they might actually be able to sell it to a scrupulous collector at a value comparable to if was just a lump of silver of that weight.

White Hat looking over his shoulder spots the Star Destroyer and thus help guide a player that has started going left towards the Destroyer to the right. How they have managed the climb, getting the ropes over the tip, or how Cueball intends to get down with the tip is left to the readers imagination...
|-
|'''Entire floating rock island.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/5/5c/1608_0994x1110y_Entire_floating_rock_island_zoom_out.png Overview]
|Overview
|
|
|
|
|Film: {{w|Avatar (2009 film)|Avatar}}
|This floating rock island may be a reference to the film Avatar where floating rocks is part of the scenery of the fictive moon {{w|Fictional_universe_of_Avatar#Astronomy_and_geology|Pandora}}. The rock in the game is very hard to find by chance, it is kind of unobtainable, which may be a further reference to the film since the reason the rocks do float is a combination of a weak gravity, a strong magnetic field and a mineral whose {{w|Superconductivity|superconductive properties}} allow it to float in magnetic fields. Of course the levitating Hallelujah Mountains in the film contain significant quantities of the mineral which is called {{w|Unobtanium}}. Only thing pointing towards it is the Washington Monument and even if you go up from there, pushing the up arrow continuously for more than half a minute you may almost miss it, as only the far right girl would move through the view. And with two coins around this island it is important to find it in order to get all coins. Apart from the coins and the surprise there is little of interest here, and not even any spoken text.

To the right just beneath the rear end of the Destroyer there is a small lump of earth that has floated up from the ground, hovering over the corresponding hole in the ground. Maybe this is caused by the same force that have created this floating island.
|-
|Top left of floating rock island with coin.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/f/f5/1608_0989x1112y_Top_of_floating_rock_island_with_coin.png Overview]
|[http://xkcd.com/1608/990:-1112+s.png (990, 1112)]
|[http://xkcd.com/1608/990:-1111+s.png (990, 1111)]
|
|
|
|
|The large rock on top of the floating island is one of only two places where there is anything at a coordinate of Y=1112. On top of the globe of Death over the bridge of the destroyer, there are three images at the top of this that enters 1112. And there [http://xkcd.com/1608/1078:-1112+s.png the very top] is just slightly higher up. But there is no coin there, so the coin that would be in the tile used for main reference here that holds the coin is the highest location for any coin in the game, as the Globe of Death has its coin in its center below the top.
|-
|Top right of floating rock island with base jumpers.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/9/92/1608_0993x1112y_Top_of_floating_rock_island_with_base_jumpers.png Overview]
|[http://xkcd.com/1608/994:-1111+s.png (994, 1111)]
|
|
|
|Y
|
|In ''Sky Toucher'' in TE two people jump of a cloud, like the base jumpers Megan and Ponytail does here from the floating rock, but at least these two girls do have parachutes on (as opposed to the cloud jumpers in TE). How they got here is a good question, but of course they could have flown here in for instance the X-wing from below at the gas station.
|-
|Bottom of floating rock island with coin.
|
:(None)
|[http://www.explainxkcd.com/wiki/images/e/e1/1608_0992x1109y_Bottom_middle_of_floating_rock_island_with_coin.png Overview]
|[http://xkcd.com/1608/992:-1109+s.png (992, 1109)]
|[http://xkcd.com/1608/993:-1109+s.png (993, 1109)]
|
|
|
|
|At the bottom of the island several small and large boulders can be seen hanging only loosely on to the bottom. At the center the largest rock can be seen, but even this is slipping a little as can be seen by the small white speck high over the very bottom of this boulder. Right of this is the other coin that belongs to this hidden place in the sky.
|-
|'''Entire Play Area - zoom out.'''
|
:(N/A)
|[http://www.explainxkcd.com/wiki/images/7/7b/1608_1001x1074y_Entire_Play_Area_Zoom_out.png Overview] [http://www.explainxkcd.com/wiki/images/8/8b/1680_Play_Area_Full_Size_Coins_Hoverboard_and_View.png With starting view]
|Overview
|
|
|
|
|
|The entire play area with the walls and their outer foundation. See also the insert with the starting view shown in red in the second image link and see more about the buildup of scenes from the individual image tiles using the [[#Play Area used as example|play area down below]]. It is easy to see how a player of the game, with no knowledge of Randall's way of thinking, may not even think about exploring outside this area, even if they do try to go outside the maze. Because it is possible to jump around in the maze without discovering that you can actually fly rather than just jump. If you only jump once you cannot see the too op the walls. On top of this there is the large [http://www.explainxkcd.com/wiki/images/a/ae/Return_to_the_play_area.PNG red warning letters] telling you to go back if you try to leave the confines of the wall.
|-
|The Play Area.
|
:My new book,
:''Thing Explainer,''
:comes out today!
:To celebrate, here's
:a small game.

:Deposit coins here
|[http://www.explainxkcd.com/wiki/images/6/6c/1608_1000x1074y_The_Play_Area.png Overview] [http://www.explainxkcd.com/wiki/images/3/30/1608_1000x1074y_The_Play_Area_red.png Hidden passages in red]
|[http://xkcd.com/1608/1000:-1074+s.png (1000, 1074)]
|[http://xkcd.com/1608/1000:-1075+s.png (1000, 1075)]
|
|
|Y
|
|This is the starting area where the game begins. There is even some extra text telling you to ''Use arrow keys to move'' but as soon as you do, this text disappears, just like the [[#Messages in Play Area|message you can receive]] below in the view depending on your action in this area. The text below the starting point of the hoverboard Cueball that you control, explains that the game is released on this day to celebrate the release of Randall's new book [[Thing Explainer]] and thus directly references the book. And also explains why this comic has been made, and furthermore why it was released on a Tuesday rather than the usual Wednesday release, which was then skipped this week. It also explains that if you collect coins you can deposit them at the terminal, and when you do it list the score (number of coins and the time used) and rates your achievement. By noting that [http://www.explainxkcd.com/wiki/images/7/7e/17_coins.PNG you got all the coins] if you collect all 17 coins in the play area maze, then it is one more trick to try to make you stay inside the walls of the maze. There is only one small feature that can be spotted from within the maze that breaks the symmetry and may give away the clue of the game. And that is the small stone that lies on the ground to the left. Because why should it be there, if this was just a platform/maze game. The walls cannot be seen if you stay in or just around the outer wall of the maze. But if you go to them you may think this is the end. Another detail about the game to be learned already here is that there can be "solid" black parts of the surroundings which are not solid at all. This can be seen in the image showing the hidden passages in red. Here it can be seen that the ledge beneath the two inverted parenthesis " )( " is not solid, and that you can fall or jump up through this section. This could forewarn you of the hidden passages, especially to the lair beneath the volcano

2648: Chemicals

2022-07-20T21:40:00Z

172.71.94.181: take a shower

{{comic
| number = 2648
| date = July 20, 2022
| title = Chemicals
| image = chemicals.png
| titletext = It's hard to believe, but lots of kids these days ONLY know how to buy prepackaged molecules.
}}

==Explanation==
{{incomplete|Created by BIG MOLECULE - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In this comic, Megan mentions that you can find the chemical formulas for chemicals online, and that they spend a lot on fancy chemicals. Bizarrely, she suggests that "they can assemble" their chemicals themselves. When Megan says this she is holding a sheet that contains the chemical formula for nitrobenzene. This would be difficult without some fancy chemistry equipment.{{citation needed}} This formula also adds to the humor because the synthesis of nitrobenzene is highly exothermic{{citation needed}} and thus extremely dangerous, and gives a reasonable response to Cueball's comment as to why more people don't "manufacture" their own chemicals.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Megan and Cueball standing next to each other. Megan has her palms raised.]
:Megan: You know how our company spends a lot on expensive chemicals?
:Cueball: Yeah?

:[Megan holding up a piece of paper with a chemical formula on it, as well as some computation for the number of atoms needed]
:Megan: Well, I just learned you can look up all of the formulas online!
:Megan: We can just buy the atoms in bulk and assemble them here!

:[Cueball still standing. Megan walking off-panel to the right]
:Cueball: I wonder why more places don't do that.
:Megan: People have no idea they're getting ripped off by Big Molecule!

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Chemistry]]

2648: Chemicals

2022-07-20T21:37:57Z

172.71.94.181: Undo revision 289488 by 108.162.245.167 (talk)

User:Jogerj

2022-07-17T07:47:45Z

172.71.94.181: Blanked the page

Talk:2642: Meta-Alternating Current

2022-07-07T18:01:45Z

172.71.94.181: DCC model railroad to the rescue

And today, we are reminded that [[Randall]] used to be a physicist (or at least has a physics degree). Not worth mentioning in the article, but while inverters can't reverse each other, transformers can. (Has Randall done the transformer/Transformer pun yet as an excuse to mock the movies?) [[User:Nitpicking|Nitpicking]] ([[User talk:Nitpicking|talk]]) 11:10, 7 July 2022 (UTC)
: I haven't picked up the physics reference yet. I see electrical engineering here. Randall strikes me as somebody who would study physics given the opportunit, though. It's notable that this webcomic started while Randall was in college, if I recall right. [[Special:Contributions/172.70.230.75|172.70.230.75]] 11:58, 7 July 2022 (UTC)

Long distance links, especially those between separate unsynchronized grids, use high voltage DC. There is a 2,000-mile link in China running at 1 MV. [[User:Arachrah|Arachrah]] ([[User talk:Arachrah|talk]]) 11:32, 7 July 2022 (UTC)
:That's because at great distances, relatively high frequency AC loses a lot of ("active" = actually useful) power as ... reactive power, I think (didn't learn the terminology in English, unit seems right though). A typical grid has a lot of generators and load. A long distance connection results in a phase shift according to the transmission time (speed of light in medium x distance) in about the order of magnitude of the AC period (usually somewhere between 1/10 to 1/60 seconds) wastes a portion equal to the sine of the phase shift angle (up to 90° = all of it) as reactive power. DC isn't quite as easy to use but on long distances there is no power loss to reactive power. [[User:627235|627235]] ([[User talk:627235|talk]]) 12:25, 7 July 2022 (UTC)

Let's face it, the thing should be called an alternator. Of course that name's taken as a redundant word for (electrical) generator. [[User:627235|627235]] ([[User talk:627235|talk]]) 12:26, 7 July 2022 (UTC)

It always bothered me that UPS battery backups take the wall AC and convert it to DC to charge the battery, but then have to turn it back to AC to send it to the computer, so the power supply can convert it to DC to run the thing. I picture some connector that goes directly from the UPS to the power supply so that if power is lost it can just pull 12V directly from the battery. [[User:Andyd273|Andyd273]] ([[User talk:Andyd273|talk]]) 12:47, 7 July 2022 (UTC)
:some UPSs do this. They normally power the computer directly from the input AC, but if there is a power failure, they use the battery to power the inverters and switch the output to the inverter. Other UPSs always power the computer from the inverter. They have the advantage that there is not even a milisecond time to start powering the computer. That can be better for some equipment, and that kind of UPS often costs more. It is also worth noting that in some data centers, they bypass the AC step and have one big DC power supply that directly powers the computers. [[User:WhiteDragon|WhiteDragon]] ([[User talk:WhiteDragon|talk]]) 16:49, 7 July 2022 (UTC)

[https://en.wikipedia.org/wiki/Inverter_(logic_gate) NOT logic gates] are also often known as inverters. An even number of those '''would''' indeed produce the same output as the (true/false) input. [[Special:Contributions/108.162.242.58|108.162.242.58]] 16:03, 7 July 2022 (UTC)

“Further chaining this into more inverters/rectifiers would normally not be considered.”
Well, if you take a DCC controlled model railway for camping, you get a second stage of inverter/rectifier.
The power supply of the DCC control station usually expects AC input, so you invert the DC of the car battery.
The PSU then makes DC for the control station processor, which is then made AC to generate a DCC signal.
The locomotives always have a rectifier to get a DC power supply from the DCC signal (which is confusingly AC).

You get a third stage with another plausible trick: put the battery on a car battery charger, which converts AC from the camping site power grid to DC. Then use a locomotive with a (rarely used) BLDC motor, which confusingly needs an inverter generating AC.
--[[Special:Contributions/172.71.94.181|172.71.94.181]] 18:01, 7 July 2022 (UTC)

Talk:1851: Magnetohydrodynamics

2022-07-06T20:22:53Z

172.71.94.181:

Hey, how the hell am I seeing this comic here when I can't see it yet on xkcd??!!?! And I'm not even trying to explain this one, I feel my complete unfamiliarity with Magnetohydrodynamics, except for being able to parse the word, will greatly hinder my ability to sufficiently explain it. :) (And that any explanation should and will include explaining what it is). I'm just rather amused at the concept that he's hearing the word often enough to make a "whenever I..." statement about it, like he's hearing it daily or more. Especially since his clear unfamiliarity suggests he isn't in the field or anything. And hey, leave my comment first this time, huh? LOL! [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 04:49, 16 June 2017 (UTC)
:Figured it out. I last loaded the page with the previous comic before midnight EST, then came here to comment a lot on it, but after midnight, after the comic was posted, the link was still dead, I had to Refresh to get the real link. :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 05:11, 16 June 2017 (UTC)

""...I replace it with "magic" "" magic has 5 letters, one more than the average anglospeaker is able to understand.[[Special:Contributions/162.158.18.10|162.158.18.10]] 13:10, 16 June 2017 (UTC)
:Not necessarily. "Troll" has five letters and it's meaning and present applicability are easily understood. [[User:These Are Not The Comments You Are Looking For|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For|talk]]) 01:48, 18 June 2017 (UTC)

Possible interpretation: It could also be that Cueball is simply unable to comprehend such a large word, and so compresses it into it's beginning and ending letters. Therefore, magnetohydrodynamic becomes mag...ic. {{unsigned ip|172.68.78.82}}

Randall is downplaying it. I used to work with magnetohydrodynamics when building systems for studying the solar wind. It's really hard because you've got masses of local and non-local (at sane timescales) interactions and the non-linearities don't cancel out nicely. Doing the same within the sun, especially at the boundary between the radiation zone and the convective zone, would require relativistic quantum magnetohydrodynamics, and that's got like every sort of hard in modern physics. I think I'll stick with simple things like trying to build a true AI. [[Special:Contributions/141.101.98.226|141.101.98.226]] 17:10, 16 June 2017 (UTC)
: The real question is what's harder: solving an MHD problem or building an AI to solve it for you? [[Special:Contributions/172.71.94.181|172.71.94.181]] 20:22, 6 July 2022 (UTC)

There is a typo in the caption: "magnetohydrodyanmics" :-) {{unsigned ip|188.114.102.202}}
:That's because we have a trivia section.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:10, 16 June 2017 (UTC)
::You meant to say "That's why we have a trivia section." :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 04:25, 27 June 2017 (UTC)

"Magnetohydrodynamics". I mean, the basic concept of magnets influencing water doesn't sound so bad, but the word itself sounds like a mad scientist having a stroke. [[Special:Contributions/162.158.62.135|162.158.62.135]] 19:23, 16 June 2017 (UTC)
:{{w|Fluid dynamics|Hydrodynamics}} is the study of liquids in motion - not only water. The term {{w|Hydraulics|hydraulics}} is an other example not much related to water nowadays. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:10, 16 June 2017 (UTC)
::I thought of that after I posted... The fact I didn't go right back and change it and didn't expect to be corrected suggests I forgot where I was, lol. All the same, thank you. [[Special:Contributions/162.158.62.135|162.158.62.135]] 22:16, 16 June 2017 (UTC)

I think he just calls it "magic" for the obvious reasons: the word is very long, and the concept denoted by it is really confusing. [[Special:Contributions/108.162.216.106|108.162.216.106]] 02:05, 17 June 2017 (UTC)

{{w|Fluid_dynamics|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w|https://Numerical_integration|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w|Magnetic_confinement_fusion|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w|Tokamak|Tokamak}} or {{w|Wendelstein_7-X|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w|Plasma_stability|instabilities}}, so some poor sods (me sadly) have to use the {{w|Particle-in-cell|particle}} kinetic codes to simulate their plasmas.[[unsigned ip|127.0.0.1|20:39, 17 June 2017 (UTC)]]{{unsigned|Xoanon}}
:To make things more unpleasant, several of the assumptions MHD uses don't apply to most fusion plasmas (particularly the collisionality).[[Special:Contributions/108.162.215.160|108.162.215.160]]

Or it could just be greased lightning.[[Special:Contributions/172.68.132.195|172.68.132.195]] 17:54, 11 April 2021 (UTC)

141: Parody Week: Achewood

2022-06-16T06:14:20Z

172.71.94.181: /* Transcript */ a better w

{{comic
| number = 141
| date = August 14, 2006
| title = Parody Week: Achewood
| image = achewood.png
| titletext = I always wanted to impress them with how well I could hear, didn't you? Also, this sets the record for number of awkward-pause panels in one strip (previously held by Achewood)
}}

==Explanation==

This comic is a part of the [[:Category:Parody Week|Parody Week]], just joking about other {{w|webcomics}}. This series was released on five consecutive days (Monday-Friday), not over the usual Monday/Wednesday/Friday schedule, and it comprises the following five {{w|parodies}}:
*[[141: Parody Week: Achewood]]
*[[142: Parody Week: Megatokyo]]
*[[143: Parody Week: TFD and Natalie Dee]]
*[[144: Parody Week: A Softer World]]
*[[145: Parody Week: Dinosaur Comics]]

{{w|Achewood}} is a webcomic by {{w|Chris Onstad}}. It portrays the lives of a group of {{w|anthropomorphic}} stuffed toys, robots, and pets, and veers between cheerful, vulgar, and philosophical scenes from everyday American life and bizarre surreal interludes - Kevin Smith meets David Lynch. The comic's humor often lacks a traditional punchline and utilizes numerous {{w|Awkward silence|awkward pause}} panels.

This comic includes three of the prominent characters from the strip: {{w|Achewood#Philippe|Philippe}} a [http://tvtropes.org/pmwiki/pmwiki.php/Webcomic/Achewood five year old stuffed otter], {{w|Achewood#Raymond_Quentin_Smuckles|Ray}}, and {{w|Achewood#Cassandra_.22Roast_Beef.22_Kazenzakis|Roast Beef}}.

In the first panel, Phillippe is dreaming of having his ears checked. The doctor informs him that because of his superhearing power, he is needed at {{w|Hogwarts}}, School of Witchcraft and Wizardry, from {{w|Harry Potter}}. This fits well with his canon depiction as a dreamer who believes typically childish things in a serious way - a long-running storyline shows Philippe's semi-imaginary run for president on a platform of hugs. On the wall behind him, there is an {{w|E chart}} - a special version of the eye chart for young children.

The comic then switches to Roast Beef and Ray discussing an invitation to a competition described only by its name ("The Dude Is Pretty Awesome In Most Measurable Ways I Mean Wow", reminiscent of the name of Roast Beef's {{w|zine}} "Man Why You Even Got To Do A Thing"). Achewood has had several storylines pertaining to masculinity contests, but the one that Randall is parodying here is the "Great Outdoor Fight," perhaps Achewood's [http://www.comicsalliance.com/hunger-games-achewood-outdoor-fight/ most] [http://www.npr.org/templates/story/story.php?storyId=94780668 famous] [http://www.villagevoice.com/arts/in-praise-of-achewood-the-great-outdoor-fight-7132722 storyline]. In this arc, Ray, finding himself in the shadow of his father, the ludicrously strong Ramses Luther Smuckles, decides to enter a 3,000-man brawl called the "Great Outdoor Fight." Although he is nowhere near as strong as the other contestants, after they all kill each other, he is the last man standing, thanks to the help of Roast Beef, and quits the contest when he realizes that he would have to knock his friend out to win.

Ray, who in Achewood typically just wears a thong, glasses, and jewellery as shown here, has a strategy of simply highlighting his genitals. Roast Beef, always a pessimist who speaks without punctuation, offers his take on the competition: Ray is going to lose to the other, significantly more impressive, contestants.

In canon, Roast Beef entered (or at least, hacked himself into) the Great Outdoor Fight specifically to ensure that Ray would win, and was shocked that Ray refused to knock him out. Randall offers an alternative characterization: Roast Beef was setting Ray up and planned to knock ''him'' out and claim the trophy, but couldn't complete his plan. Ray is dismayed, and Roast Beef proceeds to further shut him down, comparing Ray (a "McD's" hamburger) to the other competitors (a 12 oz. sirloin steak). This leads to a lengthy awkward pause, spanning the rest of the comic.

The comic is written in the style of Onstad and his humor. The last 10 panels are "awkward-pause panels," which are used frequently in Achewood, in what appears to be a joke about overuse of dialogue-free panels (there are 11 of these, but the first is a shock panel, then the pause begins). This joke is continued in the title-text, where [[Randall]] claims that this strip set the record for the most panels of this kind, a record previously held by Achewood.

{{w|Sweet Sweetback's Baadasssss Song}} is a 1971 {{w|Blaxploitation}} film that is generally regarded as an exemplar of its genre - its hero, Sweet Sweetback, is a strong, sexually-talented African American fighting his way out of the ghetto. Bursting fully-formed from Sweet Sweetback's head is a parody of the {{w|Athena#Birth|birth of Greek Goddess Athena}}.

References to {{w|Fleshlight}}, such as this comment by Beef in the first panel in the third row: ''You are gonna stand out as the sort of dude who stays at home all night playing fleshlight tag '', became a [[:Category:Fleshlights|recurring theme]] in xkcd, but this seems to be the first time.

==Transcript==
:[Unlike regular xkcd comics, the text here seems to be typed on a machine, and the speech is in bubbles rather than just indicated with a thin line from the speaker. This is true for all spoken text. Also, Beef almost never uses any punctuation in his sentences.]

:[Philippe, an anthropomorphic stuffed otter, is participating in a hearing aid test with headphones over his ears and one arm raised. He is at a doctor's office, and behind him on the wall, there is an eye chart with six lines of E's, the large one on top a regular E, and then in the next two lines they are turned around in the four general directions. The last three lines are not readable. The doctor talks to Philippe from off-panel in a bubble going to the far right. Here it meets a thought bubble line going down and left from the upper right corner. On the right side, the background is gray, and Philippe can be seen lying in a bed, dreaming the scene to the left.]
:Doctor (off-panel): Philippe, your hearing is perfect! In fact, you heard ALL the beeps! You have super-hearing! You're needed at Hogwarts!
:Philippe: Oh boy!
:Eye chart:
::<big>E</big>
::EШEMƎ
::ƎEƎMƎME

:[Roast Beef, an anthropomorphic thin cat with pointy ears and small eyes, is looking at Ray, an anthropomorphic fat cat with black glasses. He is reading from a piece of paper that has been folded out, holding it up in front of him with both hands. They are seen from the waist up. Most of the time below, their eyebrows are visible to show feelings, but Beef's are not shown here. When they speak, their mouths are open, else they are closed. Beef's is closed in this panel. Above the drawing, there is a line, and in the thin frame formed by that and the top panel, there is a caption:]
:Meanwhile . . .
:Ray: Beef, check this out. I got an invite to that The Dude Is Pretty Awesome In Most Measurable Ways I Mean Wow competition.

:[This panel pans up so less of their bodies can be seen and more text can be seen above them. It is clear that Ray has a medal hanging around his neck, which was partly covered by his hands in the previous panel, which are now down. Apart from this, they look the same.]
:Beef: Alright that is pretty sweet dogg what is your strategy gonna consist of
:Ray: I'm thinkin' I need to point out my best features -- maybe go holdin' a sign with an arrow toward my junk.

:[Ray is seen almost in full figure, which reveals that he is only wearing big black underpants and the medal, his nipples also clearly visible on each side of the medal (as they were already in the previous panel, but not the one before). He has one arm at his side, the other holding a large sign with big bold text, and beneath this a large black arrow pointing first down and then across towards his pants waistband.]
:Sign: <big>'''Yes'''</big>

:[Back to same view as in the first panel, except a pan so Ray is in the center and Beef is partly cut off at the left frame so there is space for a speech bubble to the right of Ray. Ray holds up a drink glass in front of him with a cherry in the bottom. Beef's eyebrows are missing.]
:Beef: Yeah well I always said subtlety was your middle name dogg
:Beef: And also your first and last in case they didn't get the point
:Ray: How do you think I should play it?

:[Only Beef is shown in this panel to make room for his speech bubbles.]
:Beef: Well basically you got no chance as I see it these dudes are all lovers and fighters to the last
:Beef: All sprung fully formed from the head of Sweet Sweetback
:Beef: You are gonna stand out as the sort of dude who stays at home all night playing fleshlight tag

:[Both are again in this panel, but it has been panned up so only their heads are visible to place speech bubbles above them.]
:Ray: These words you got are crazy. Didn't I win the outdoor fight?
:Beef: Uh huh about the fight I wasn't gonna tell you but how could you miss that I was setting you up
:Ray: What?
:Beef: You got played dogg

:[Same but panned down to below the medal on Ray. Beef's eyebrows are missing.]
:Beef: I basically just didn't have the heart to go through with it in the end.

:[Only Beef is shown to the right, making space for five speech bubbles to his left.]
:Beef: Anyway the point is that you are gonna lose this thing so hard
:Beef: All cheap McD's hamburger to their slabs of steak
:Beef: A couple 12-oz sirloins garnished with nothing but pure manhood
:Beef: Maybe some sprigs of parsley
:Beef: You are pretty much going down

:[Closeup of a shocked Ray mouth hanging open.]

:[Silence 1. Both are shown from the waistline and up standing looking slightly down, arms down. Ray has closed his mouth. Generally, their ears shift a bit from panel to panel the rest of the way, as has their head position, but else they stay the same distance from each other.]

:[Silence 2. Same view. Beef looks perturbed, and his ear is twitching. Ray's mouth is open again.]

:[Silence 3. Same view. Beef looks sorry. Ray has closed his mouth.]

:[Silence 4. Same view. Beef looks sorry and Ray looks angry. Ray's mouth is open again.]

:[Silence 5. Same view. Ray has closed his mouth again. Beef's eyebrows are missing, but also Ray's are gone, maybe hidden by the rim of the glasses. They do not reappear in the rest of the comic, indicating that he keeps his eyes downcast. ]

:[Silence 6. Same view. Beef's eyebrows are back.]

:[Silence 7. The view has panned so low that it is possible to see the waistband of Ray's underpants. Beef is looking even more down and has moved closer to Ray whose mouth is open again.]

:[Silence 8. Same view, but a little less waistband visible. Beef has moved back agai. His eyebrows are missing and his mouth is open, and Ray looks even more down than before, still mouth open.]

:[Silence 9. View panned so low that a large part of Ray's underpants can be seen. Beef is looking down, mouth closes with eyebrows, Ray standing more straight, still mouth open.]

:[Silence 10. Beef looks surprised with eyebrows raised and has moved close to Ray, who has finally closed his mouth again.]

==Trivia==
*This was the [http://www.achewood.com/index.php?date=08142006 Achewood strip] released the same day as this comic.

{{comic discussion}}

[[Category:Parody Week]]
[[Category:Fleshlights]]
[[Category:Animals]]
[[Category:Food]]
[[Category:Harry Potter]]