explain xkcd - User contributions [en]

User talk:Asdf

2022-07-03T14:00:39Z

162.158.159.121: /* "Another one" */ new section

==Welcome==
I know you are not a newbie and so I would like to see your opinions at this talk page: [[explain xkcd talk:Editor FAQ]]. The main issues right now are ''tables'' and ''headings''. While avoiding tables seems to be consensus the headers are a more difficult issue. I try to keep this as simple as possible while a good layout is the final goal. Not easy. Any thoughts? --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:07, 25 August 2018 (UTC)

Thank you for the image. [[User:Netherin5|Netherin5]] ([[User talk:Netherin5|talk]]) 16:06, 19 March 2019 (UTC)

== "Another one" ==

You got there ''just'' before I did. My intended revert colllided with yours. At least that one helpfully left who they are... *ponders what I can do to them... hmmm...* Anyway, thought I might comment, as you actually have a page sitting here ready for something to be said... Keep up the good work! ;) [[Special:Contributions/162.158.159.121|162.158.159.121]] 14:00, 3 July 2022 (UTC)

Talk:1962: Generations

2022-06-19T03:22:03Z

162.158.159.121:

Table guy! Maybe this could be a table with "Year", "Generation Name", "References" and "Speculation". Or something. [[Special:Contributions/198.41.230.172|198.41.230.172]] 17:31, 2 March 2018 (UTC)

The highlighted generations are clearly the ones Pew Research named, but I can't figure out why Randall's numbers don't seem to match Pew's here: http://www.pewresearch.org/fact-tank/2015/05/11/millennials-surpass-gen-xers-as-the-largest-generation-in-u-s-labor-force/ft_15-05-11_millennialsdefined/ [[User:TheAnvil|TheAnvil]] ([[User talk:TheAnvil|talk]]) 17:37, 2 March 2018 (UTC)

—••— means X in Morse code [[User:Inexorably advancing wall of ice|Inexorably advancing wall of ice]] ([[User talk:Inexorably advancing wall of ice|talk]]) 18:21, 2 March 2018 (UTC)

But seriously, it was funny the first time. I'm sorry for the above incomplete tag in the comments{{Citation needed}},but it feels like most comics since maybe #1900 ([[1914: Twitter Verification]] comes to mind...) have this kind of thing for their incomplete tag. Maybe if it's spaced out more, instead of put into nearly every comic nowadays, it won't be so much of a problem. --[[Special:Contributions/162.158.75.184|162.158.75.184]] 18:02, 2 March 2018 (UTC)
: If you can address this problem, please edit the user. [[Special:Contributions/162.158.155.26|162.158.155.26]] 23:04, 2 March 2018 (UTC)
::Removed the incomplete tag, changed the citation needed tag into the correct one. Dude, please don't do that again, it's not funny, just seriously annoying. The incomplete tag is not there for you to abuse. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 12:07, 3 March 2018 (UTC)
:::Oh, and now that I've finally caught up to you, 162.158.155.26, please check your talk page. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 12:07, 3 March 2018 (UTC)

Can someone help me? [[User:Halo422|Halo422]] ([[User talk:Halo422|talk]]) 20:20, 2 March 2018 (UTC)

What's the emoji 2000-2017? [[Special:Contributions/172.68.141.214|172.68.141.214]] 21:05, 2 March 2018 (UTC)
:I think I found it: 💅 [https://emojipedia.org/nail-polish/ "nail-polish"] (Comes up very different on different systems) [[Special:Contributions/162.158.79.233|162.158.79.233]] 21:20, 2 March 2018 (UTC)
:Couldn't this emoji, and hence the title "Generation 💅", refer to the rise of nail care salons or manicure salons during the recent years? I don't know about other countries, but at least in certain parts of Europe, Germany in particular, there seems to be such a boom of this kind of establishments that I often wonder how they survive and open even more such businesses, even though it appears there's more nail salons than (manicured) nails in town. [[User:Passerby|Passerby]] ([[User talk:Passerby|talk]]) 20:56, 4 March 2018 (UTC)

I have to believe the 1748 - 1765 generation is some form of "Long s" such as U+1E9C or U+1E9D [[Special:Contributions/162.158.79.233|162.158.79.233]] 21:12, 2 March 2018 (UTC)

: It looks more like a forte ([https://www.fileformat.info/info/unicode/char/1d191/index.htm U+1D191]). I'm not sure why that would be funny—maybe because of [[Wikipedia:fortepiano|fortepiano]]s? [[Special:Contributions/172.69.69.214|172.69.69.214]] 21:43, 2 March 2018 (UTC)
::My position comes from the fact that documents written by this generation (i.e. [https://en.wikipedia.org/wiki/Long_s#/media/File:Long-s-US-Bill-of-Rights.jpg Declaration of Independance] and the US Constitution) are noted for having this letter form. The script form of the long s looks like what Randall has written, which, to your point, looks like a "forte" [[Special:Contributions/162.158.79.233|162.158.79.233]] 22:51, 2 March 2018 (UTC)
::: Actually, it quite clearly is '''not''' long s. Long s only has the tic on the left side of the main stroke, not on both sides as is the case here. [[Special:Contributions/162.158.78.118|162.158.78.118]] 22:24, 3 March 2018 (UTC)
:::: I read it as an italic lower-case F, ''f'', as used to denote [https://www.wikiwand.com/en/Function_(mathematics) mathematical functions]. I think it looks more like one of those than a [https://www.wikiwand.com/en/Long_s long s], ſ, though I don't have an explanation for why that would be used to name a generation. [[User:Smylers|Smylers]] ([[User talk:Smylers|talk]]) 09:50, 5 March 2018 (UTC)

Hitler was born in 1889, about three years before the "Oops, one of us is Hitler" generation ... --[[Special:Contributions/141.101.105.240|141.101.105.240]] 21:37, 2 March 2018 (UTC)

Can someone who's a big Trekkie than I am help explain the dates for ''Star Trek: The Next Generation''? If we're going off of the events of the show + movies, it seems to start well before the events of the show and end before the last of the movies. [[User:PvOberstein|PvOberstein]] ([[User talk:PvOberstein|talk]]) 21:49, 2 March 2018 (UTC)
:Year 2378 may be explained by last episode of Voyager happening that year, but no idea about year 2360. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 00:59, 3 March 2018 (UTC)
::Year 2360 is when the humans who became adults (18) in 2378 were born. This time-span is probably when the majority of human TNG characters would have been born (not necessarily notable ones). This is similar to how people born in 1982 became the first new adults in the new millenium. [[Special:Contributions/172.68.46.143|172.68.46.143]] 05:02, 3 March 2018 (UTC)
:::William T. Riker was born in 2335, Jean Luc Picard 2305, Deanna Troi 2336, Data 2338, Guinan ... ehmmm ... well she was already adult in 1893. Even Wesley Crusher was born 2348. They don't allow children on bridge. Usually. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 23:49, 7 March 2018 (UTC)

Filled in most of the table with explanations (I'm pretty sure most of the latter generation names are references to potential transhumanist futures), but I'm not sure what "Second-Greatest" Generation refers to unless it's about the Civil War. Also, I'm not entirely certain whether the generation before the gilded one was cut a lot of slack. And I'll let someone more versed in standard sociological history fill in the common reasons for the core 20th century generations.[[User:WingedCat|WingedCat]] ([[User talk:WingedCat|talk]]) 22:49, 2 March 2018 (UTC)

;Paperclip machine
I think the paperclip machines refer to the browser game "Universal Paperclips", where paperclip machines take over the universe. [http://www.decisionproblem.com/paperclips/index2.html]. Best regards, [[Special:Contributions/172.68.110.10|172.68.110.10]] 11:55, 3 March 2018 (UTC)

The incomplete explination tag seemed to be a useless joke, so I deleted it.

;Ω
Wow that’s a lot of speculation on the Ω generation! 177 words of it! Who knew people could imagine so much inspired by a single character (and no historical context to extrapolate from). Personally, I tend to think of it as the “resistance generation” given my electronic background 😜. [[User:PotatoGod|PotatoGod]] ([[User talk:PotatoGod|talk]]) 15:11, 4 March 2018 (UTC)
:Ω may be a reference to Year Omega in the novel {{w|The Children of Men}}. [[Special:Contributions/172.69.69.172|172.69.69.172]] 18:04, 5 March 2018 (UTC)

Why is there an incomplete tag in the transcript? What's wrong with it? [[Special:Contributions/108.162.216.148|108.162.216.148]] 22:49, 4 March 2018 (UTC)

Millennials were *originally* called "Echo Boomers" (after the Baby Boomers, and because most of them are that generation's kids), "Generation Y" came later but before "Millennials" stuck as a non-snowclone name. [[Special:Contributions/162.158.63.100|162.158.63.100]] 01:56, 18 June 2018 (UTC)

Generation X being the tenth generation of Americans seems a bit of a stretch. A generation is generally 35 years, and seems unlikely to be less than 20. And [https://en.wikipedia.org/wiki/Generation_X#Origin_of_term Douglas Coupland], who coined this use of the term, used "X" as lazy shorthand for alienation and a rejection of societal norms. If no one objects, I'll update the text. --[[Special:Contributions/162.158.158.33|162.158.158.33]] 09:02, 13 August 2019 (UTC)

"1730 - 1747 Most of the United States' Founding Fathers were born in this period. (But not all: Benjamin Franklin, for instance, was born two generations prior, in 1706.)" So, since when is a generation 12 years? [[User:Nitpicking|Nitpicking]] ([[User talk:Nitpicking|talk]]) 00:35, 19 June 2022 (UTC)
:It's the first time I've read(/noticed) that, and I'm not sure I would have said it myself, but... One generation in those days might well average at <26 years, so the intergenerational gap might be best considered as two such generations (e.g. like a great-uncle, being your grandfather's youngest brother, sort of age) rather than one (just an uncle, such as your mother's ''eldest'' brother), what with the tendency for early children ''and'' big families making the advance of generations more pertinent than their onward persistence through time.
:I may be overthinking it, but that sounds to me like a credible justification for the choice of words, should it not just be an error/thinko... [[Special:Contributions/162.158.159.121|162.158.159.121]] 03:22, 19 June 2022 (UTC)

2630: Shuttle Skeleton

2022-06-08T13:46:46Z

162.158.159.121: /* Explanation */ Details inserted.

{{comic
| number = 2630
| date = June 8, 2022
| title = Shuttle Skeleton
| image = shuttle_skeleton.png
| titletext = It's believed to be related to the Stellar Sea Cow.
}}

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

In taxinomy, as the understanding of the natural world developed, many misconceptions were overturned such as that dolphins were 'fish'. Or at least the scientific terminology was tightened. Because of convergent evolution, the tendency for different families of species to adapt similarly to a given environment, it is often not easy to properly visually distinguish the more distantly related creatures from each other just by observing their exterior (e.g. a body that works well in an aquatic environment).

In leiu of a proper genetic analysis, or even sufficient observation of them in the wild, the main progress in understanding the differences was often in dissecting the corpses of creatures found stranded (or possibly caught in nets) or reconstructing them from skeletal remains. Together with fossil evidence, big insights were developed about their origins (and any differences from others' origins).

In this comic, Randall suggests that the nature of the {{w|Space Shuttle}} was in doubt, or misunderstood, until either an intact 'specimen' (of which there are four) has been dissected, or possibly remains reassembled (from the two that were lost in accidents). The reusable spacecraft system, was used from 1981 to 2011, where after, as mentioned in the caption, it was decommissioned.

With its shape, shown in the small image, and the tail fin, it could look a bit like a fish, maybe even a shark because of the fin. But it is actually not an animal.{{Citation needed}}

The joke is that after the shuttle was taken out of use, its skeleton was analyzed, and as shown in the comic, this is the typical skeleton of a mammal, with details such as the pentadactyl quadrapedal bodyform hidden beneath its aerodynamic sweep, as well as the type of bones (i.e. not primarily cartelidge). This sort of detail is similar to that possessed by a whale. Of course, the skeleton of a space craft is not made of bones but of metal and plastic and other manufactured materials. But some would call parts of the space craft for its skeleton.

The title-text conflates the now-extinct {{w|Steller's sea cow}}, an aquatic mammal, with the word "stellar" that relates to various space-related terms (being of a star or stars, such as inter-stellar space or stellar masses).

==Transcript==
:[In the upper right part of the panel there is a small drawing of the Space Shuttle as seen from above. Beneath it, and to it's left, is a much larger drawing with the same outline as the Shuttle. But this time the outer layers have been removed to reveal the inside. This has revealed a skeleton taking up the entire space inside. The head is in the front, and legs and tail at the rear, with arms and fingers in the wings. Probably looking somewhat like a bats "hand/wings". The bones are white with the frame of the shuttle gray or black. Some of the lines outlining the design of the shuttle is both on the small and the large drawing, along the wings and rear engines. Both feet and arms have five fingers/toes.There seems to be 24 ribs in the very long rib-cage.]

:[Caption beneath the panel:]
:The Space Shuttle was long assumed to be a type of fish or shark, but after it was decommissioned in 2011, anaylysis of its skeleton determined that it was actually a mammal.

{{comic discussion}}

[[Category:Animals]]
[[Category:Space]]

Talk:2626: d65536

2022-06-07T09:19:14Z

162.158.159.121:

I wonder: can we even make a fair polyhedron with 65536 faces? In Randal's illustration, the faces seem to be irregular hexagons. [[Special:Contributions/172.70.130.105|172.70.130.105]] 21:37, 30 May 2022 (UTC)
: This is better than my question, which was simply if you could tile a sphere with these. [[Special:Contributions/172.70.211.36|172.70.211.36]] 23:01, 30 May 2022 (UTC)
:Definitely possible, just create two identical right pyramids with a 32768-gon base and glue the bases together. [[User:Clam|Clam]] ([[User talk:Clam|talk]]) 23:53, 30 May 2022 (UTC)
: Would this design be fair? Consider a set of 256 lines of latitude overlapping another set, with the second set's polar axis at the equator of the first. Cut flat quadrangles between the intersection points of the lines of latitude. Doesn't use hexagons like the comic does though. [[Special:Contributions/172.70.110.121|172.70.110.121]] 09:41, 31 May 2022 (UTC)
:: Fairness is a given for pyramids (if that's what you're asking). As long as there's enough 'rolling energy' to get either of the pyramids 'facing up', any N-agon base to the pyramids should have enough indeterminate impetous to then finally roll around a bit to end up with any of those exposed faces on top.
::(Interesting to note that for odd-numbered N-agonal bases, like that in a D10, you need to offset the bases and instead of sticking to the triangular faces base-to-base you now have kite-shapes that interlock in a serration that is no longer strictly planar along the axis's perpendiculars.)
::That might need a selection of the pyramidal slope. A very wide pair of bases with very little tip-'elevation' (to fit tightly within an oblate spheroid) should transition very well between same-pyramid faces, like a bulgy button, but one with highly acute tip-angle (prolate, likewise) might find the dominant behaviour to be tip-to-tip tipping, more like a toggle-fastener. OTOH, for odd-numbered end-agons it would probably ratchett to subsequent sides as it tips back and forth so long as it has enough energy to it.
::If you're asking about lines of latitude intersecting, consider that near the poles of either latitudinal reference the division of the other reference-system is going to be spliced more irregularly and thus give varying degrees of stability to rest upon.
::(Also, do you have a latitudinal line that crosses ''both'' pairs of poles, or are you deliberately moving them by half a phase (1/512th of the relevent circumference) so that you at least don't have them entirely coincident.)
::I believe the suggested scheme would be to take a dodecahedron or icosohedron (either of the two duals can be used to start with) and then subdivide each face in such a manner that equally-sized (but differently distorted) hexagons – and 12 little regular pentagons of identical area fitting in at the old dodecahedron centre/the old icosahedron vertex – emerge from the required segmentation/vertex-truncation and readjustment the radiality of all new mid-edge vertices (or maybe the newer-edges' centres or the newer-faces' centres) to touch the unit sphere. If done symmetrically, it should be entirely fair.
::The face-count might be troublesome, though. The twelve necessary pentagonal faces leaves 65524 hexagons, to split evenly between* either 12 or 20 zones, and it should be obvious that neither is possible**, in whole numbers, given the starting point of 2n faces...
:::(* - you can, and probably will in this design, have some that cross between two of the top-level polygons, but you can fully 'donate' as many as you then fully ''get'' donated from the next face around, so it might as well be just counted as a group of whole tiles on an a set of Escher-like interlocking 'rough' polygons.)
:::(** - If you're using 12 zones, that's 3x4x(however many in the zone + one corner each) and there's no factor of 3 in ''any'' value that is 2n. Arranging into 20 symmetrical zones (5x4), you will find that 65524 isn't divisible by 5, either...)
::You could probably arrange an N-ahedron with the number of faces being 12+(12a) or 12+(20b), for some higher value (a bit of mental arithmatic suggests 65592 might be that value) and mark all the 'excess' faces (56?) with "Roll Again!". Or perhaps some pithy motivational slogans that also convey roughly the same meaning... :P [[Special:Contributions/172.70.162.5|172.70.162.5]] 11:32, 31 May 2022 (UTC)
::Postcript: Ok, so this is my idea for face-placing. Take a D8 (octahedron) and divide each of its 8 originally triangular faces into 8192 smaller faces (alternatively, start with a cube and progressively truncate its corners towards the same end). This is not a divisible by three number (neither can you put one in the centre, the rest are divisble by three and can surround it symmetrically), but you don't need strict rotational symmetry in any way. The opposing side can reflect/copy the non-symmetry as required to create any useful symmetry across the whole of the structure (and make floored-base/upmost-face pairings, amongst other things).
::As long as you make the faces equally likely to land on ''and stay on'' (could be hyperstellated as a slightly flat irregular 8192agon-based right-pyramid with the pyramid-faces of adjacent sides matching or meshing edges with those of each other, or a complicated mostly-hexagonal mesh, or a triangular one that's a limited fragment of a fine geodesic-like bulged pattern) by some suitable scheme governing area, aspect ratio and inter-face angle of incidence (probably normalising features to touch the unit sphere, for a start) then it should do it fairly and with ''exactly'' 65536 faces. I leave the fine-tweaking up to someone else. [[Special:Contributions/172.70.162.5|172.70.162.5]] 12:59, 31 May 2022 (UTC)

I don't know why it's so big? Seems like it should have a diameter of approx. 1 meter. [[Special:Contributions/172.70.130.105|172.70.130.105]] 21:37, 30 May 2022 (UTC)
: Cueball is 50 pixels high. The ball is 340 px high. Assuming Cueball is an average-height male (1.7m), and is standing the same distance from the viewer as the center of the ball, roughly how large is each face of the polygon? Area of a sphere is 4.pi.r.r, r=0.85, so 9.08 m^2 or 9080000 mm^2, divide by number of faces, get 277 mm^2, so we get 1.6cm to a side. If I did that right, then you're right: those are fairly large faces. --[[Special:Contributions/172.69.70.39|172.69.70.39]] 05:58, 31 May 2022 (UTC)
:I ran the calculations for the Trivia section. I used 12pt font which gave each number an area of 1/6 square inch (about 1 square cm) [[Special:Contributions/162.158.106.237|162.158.106.237]] 06:57, 31 May 2022 (UTC)
:Simple: Exaggerated for comedic effect and to make the point it's unwieldy (plus avoid the fuss of figuring out a realistic size) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:31, 4 June 2022 (UTC)

Should the title and picture file use "d" or the comic's difficult to type "ᴅ"?
[[User:While False|While False]] ([[User talk:While False|talk]]) 21:55, 30 May 2022 (UTC)
:Since xkcd uses small caps as lowercase letters, the "ᴅ" should just be considered xkcd-font for "d", and as such need not be used on the title, which is not using the xkcd font.
:: Ah! [[User:While False|While False]] ([[User talk:While False|talk]]) 06:15, 31 May 2022 (UTC)

If you really did want to generate a 16 bit integer with physical dice, it would be much simpler to roll a [https://www.thediceshoponline.com/impact-opaque-hexidice-d16-hexadecimal-dice hex die] four times. [[User:Clayot|Clayot]] ([[User talk:Clayot|talk]]) 23:30, 30 May 2022 (UTC)
:Rolling a binary die 16 times would also work. You can get binary dice for 1¢ each. [[Special:Contributions/108.162.245.69|108.162.245.69]] 01:31, 31 May 2022 (UTC)
::The lowest-value coin of all is the Tiyin from Uzbekistan. Some 3,038 equate to one UK penny (and 2,000 tot up to one US cent) from https://www.bbc.co.uk/news/magazine-21572359. [[User:Arachrah|Arachrah]] ([[User talk:Arachrah|talk]]) 15:13, 31 May 2022 (UTC)
::Those 1¢ "dices" are not exactly guaranteed to be random. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 06:12, 31 May 2022 (UTC)
:::They seem as random as other dice? Am I wrong? [[Special:Contributions/172.70.230.63|172.70.230.63]] 09:33, 31 May 2022 (UTC)
:::: You can reduce bias by taking two not quite fair coins. Flip them together. If both heads, or both tails, then record a 0. If different, record a 1. [[User:Arachrah|Arachrah]] ([[User talk:Arachrah|talk]]) 15:13, 31 May 2022 (UTC)
::::: Actually, it's better to flip one coin twice. If it's heads then tails, record a 0, if it's tails then heads, record a 1. If it's HH or TT, try again. [[Special:Contributions/172.70.207.8|172.70.207.8]] 15:20, 2 June 2022 (UTC)

I think the hardest part (or maybe second-hardest part) is figuring out which facet is the one on top. [[Special:Contributions/162.158.78.109|162.158.78.109]] 00:46, 31 May 2022 (UTC)
:Roll it on a glass table, check from below which face it's landed on instead. Wait until it has settled safely, though, or it might land on ''your'' face! [[Special:Contributions/172.70.90.227|172.70.90.227]] 04:58, 31 May 2022 (UTC)
:: Good plan. Assuming standard dice design, subtract the value from 65537 to get the value of the uppermost face. --[[Special:Contributions/172.69.70.39|172.69.70.39]] 05:58, 31 May 2022 (UTC)
::: Because computer binary counting starts with ZERO (and in this case ends with 65535) one has to subtract from 65535. This die would not have a 65536 and it would have a zero. [[User:Inquirer|Inquirer]] ([[User talk:Inquirer|talk]]) 22:38, 31 May 2022 (UTC)
::::Notice that the parent comment says “assuming standard dice design” and standard dice start with 1 and end with their d number: a standard d4 has faces 1,2,3,4; a standard d6 has faces 1,2,3,4,5,6; a standard d10 1,2,3,[…],10; and a standard d100 has faces 1 through 100. Which is why rolling 2xd10 does NOT yield the same results as rolling 1xd100, because one cannot roll a 1 OR a 100 with two d10’s, and other numbers are over represented. This is why I have both a d12 and a d100 in my set of dice…[[User:John|John]] ([[User talk:John|talk]]) 11:40, 2 June 2022 (UTC)
:::::D10s are frequently (IME) numbered 0..9, with underlines to distinguish 6 from 9, whether or not that is as a deliberate sop to pairing up for percentiles ("It's the red dice first...", "It isn't!", "It is, it's ''always'' the red dice first, that's a 9 percent fail, not at 90 percent success!"). The 0 opposite 9, 1 opposite 8, etc.
:::::If you're rolling 1..10s (depends upon the system being used for... and arguments about the original intentions, possibly, where 10 of something or zero of something turning up/discovered means a lot to what exactly happens next) you ''treat'' them as full 10s, and double-zero can (again, hopefully understood in advance) be a "natural 100", rather than a natural-zero, to someone's obvious advantage or detriment.
:::::Similarly, games with D4 may use 0..3 as its outcomes, or D3s (D6/2s) have 0,0,1,1,2,2 as faces. Or if you are somehow stuck with a 1-based die of the appropriate (or divisible) range, and need to play something that requires a 0-based one, you agree that MAXNUM->ZERO or N=N-1.
:::::From my recollections of the truly huge collection of multicoloured, multisized and variously multifaceted dice that was dragged out for wargaming/role-playing sessions, years of accumulations from various sources, the D6s (spotted, not "Hit", "Missfire", <arrows for miss direction>, or otherwise for other uses), D8s, D12s and D20s were habitually 1-upwards, and Ds with 3, 4 and 10 almost all 0-upwards. D6s were the most numerous, but D10s well up there (enough for colour-mismatched pairs for each of a whole battalion of participants, even if the Hit/Miss die had to be passed around at need, and the few big yellow D20s might need to be offered onwards/rolled on someone's behalf on occasion).
:::::In short, the 'standard' is perhaps more firmly that opposite sides add up to double the average (not possible with D4, which is also "point-marked", not one number per side), though I'd like to check a D3 to see if it's 0 opposite 2 (x2) and 1 opposite 1 (which also happens to be a 0..5-dice with the opposition rule, but modded by 3) or perhaps in a basic {1..6}mod3 conversion 1 opposes 0(=6), 2 opposite 2(=5), 0(=3) opposite 1(=4). Maybe next time I go a gaming I'll get the chance. [[Special:Contributions/172.70.86.44|172.70.86.44]] 12:48, 2 June 2022 (UTC)
:::::HOW are you figuring any numbers are over represented in rolling 2xD10? There are 100 possibilities, 1 through 100, one chance per number, exactly equal... Each die has a 1 in 10 chance of rolling each value. Unless you're forgetting to pre-assign which die is the tens position and which is the ones... This is why any set with more than one D10 has then different colours so you can tell them apart... [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 05:11, 4 June 2022 (UTC)
::::::Not sure what you're asking here. It seems to bear very little relevence to the meaning of the thing you're replying to (wot I wrote, which might indicate the error in conveying is at my end). I did not ''intend'' to suggest (as it is untrue) that 2D10≠1D100 (give or take adjusting what "00" means, which is an implementation issue, not a mathematical one), but I'll gladly clear up anything I left potentially saying something other than I thought it did. Quote the bit, and you can get a 'better' rewrite of it ASAP. [[Special:Contributions/162.158.159.41|162.158.159.41]] 05:48, 4 June 2022 (UTC)
:::::::"Which is why rolling 2xd10 does NOT yield the same results as rolling 1xd100, because one cannot roll a 1 OR a 100 with two d10’s, and other numbers are over represented.", that line. A 1 is rolling 0 on the tens die and a 1 on the ones die. A 100 is 0 on both dice (or you make the range 0 to 99, in which case two 0s is 0). NOW I think you were thinking of multiplying the values, which is indeed bad (for example, it then becomes impossible to roll a 17, as no two single digit numbers multiply to 17. Also, 9x9 is 81, 9x10 is 90, making those the last two possible values before 100, the other 80s and 90s unachievable. And then what you say make sense, you can get 24 with 3x8 or 4x6, two chances = over-represented). [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:29, 4 June 2022 (UTC)
::::::::Ah, no, that was User:John, not me (172.70.86.44). Teach me for replying based on seeing the Diffs page, and not counting the indent-colons correctly! You were replying to a point that I had actually ''not even noticed'', at the same 'level' as I had jumped in on the zero-based-range thing with my spiel that you weren't actually arguing with. (Not sure John was thinking dice-multiplied, either, as 1x1=1. Perhaps why I blanked that bit out.)
::::::::On the subject, though, the Babylon 5 RPG used an interesting double-dice system, for some things (either straight success/fail or modifying other offsets, possibly). Red D6 and Green D6 (or similar hue distinction) rolled together. Take the ''lowest'' value of the two, and then call it negative if it was the red one. Equal rolls mean zero, except double-1 (critical/special failure of some kind) and -6 (likewise a success). Gives a slightly modified normalised-around-zero distribution (intentionally or otherwise) with the possible results being ((-Critical -5 -4 -4 -3 -3 -3 -2 -2 -2 -2 -1 -1 -1 -1 -1 0 0 0 0 +1 +1 +1 +1 +1 +2 +2 +2 +2 +3 +3 +3 +4 +4 +5 +Critical)), if you order the 36 possibilities. Similar to 2D6 added, minus 7 (to bunch up the unexceptionalism towards the baseline), but two of the middlingest possibilities removed and given special status at the either end for that little possible pizzaz! ;)
::::::::It reminded me of the experiment with monkeys where they were taught to recognise values (as number of bananas, e.g.) and then taught that whichever of two options they chose, it was the ''other'' one's value that dictated their reward. When done with abstract numbers (digits, or colours/shapes relating to numbers by training) they would "choose low, to get high", but when given ''actual'' quantities of reward-items, they'd instinctively "choose high", by instinct, immediately before their conscious brains kicked in and they realised they'd done the wrong thing. Or something like that (look for 30/40-year-old study, possibly shown to be flawed, these days)...
::::::::Anyway, it took a short while to train oneself to be somehow excited by 3 dots on a green when paired with six dots on a red, say, (or dissapointed with a green 6 in the light of any non-6 red) when previously the merest glance at the cumulative spots on thrown dice would suffice to satisfy the question of how well they fell for you. ;)
::::::::Not useful for this comic, but had always been dying to mention it, from the beginning! [[Special:Contributions/172.70.86.64|172.70.86.64]] 11:10, 4 June 2022 (UTC)
:::::::::LOL! Yes, I indented to answer John, his comment mystified me, :) And I did not check your identity, just understood by your response YOU were the one I was speaking to. :) The comments on here are so many and so LARGE I haven't read most, just that his caught my eye. THAT is an interesting if complicated dice system, wow! [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 05:03, 5 June 2022 (UTC)

What material should it be to be light enough to easily roll it but cheap enough that doing the 1,5 meters doest cost a fortune ? Sorry if the question is not clear. [[Special:Contributions/141.101.69.30|141.101.69.30]] 05:50, 31 May 2022 (UTC)
:I recommend making it hollow. You could probably do something like this for $3000 if you made it out of 1/8th inch acrylic plate. [[Special:Contributions/162.158.106.237|162.158.106.237]] 07:02, 31 May 2022 (UTC)
:At first I thought aluminum for sturdiness, but really you could make this out of cardboard for dirt cheap, lasercutting precise shapes, but you'd have to design its structural frame to keep it intact, exchanges design effort for price. [[Special:Contributions/172.70.230.63|172.70.230.63]] 09:32, 31 May 2022 (UTC)

I disagree with this dice being really random. Like, sure, if thrown correctly, but that's going to be quite hard. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 06:12, 31 May 2022 (UTC)

:True. For a rolled die to be random, it needs to roll far enough so that the initial orientation no longer governs the outcome. Say, ten times the circumference, or about 150 meters? -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 10:28, 31 May 2022 (UTC)
::Interesting to consider the 'necessary minimum'. Simplify to a "wheel of fortune" (just one axis of continual rotation) it would depend upon the potential variation of imparted rotation. If (say) 'aiming' at two whole rotations has a (perhaps 'normal') spread of variance that relates to ±½ rotational uncertainty at the 1st and 3rd quartile of probability then the sub-first and above-third 'tails' might wrap around to (roughly) equalise the chances that 2±(whatever fraction) spins lands just about anywhere just about equally. Aiming at four whole rotations (similary ±1 spin at the given quartiles, and the tailing chancs 'filling in' above 5 rotations and below 3) would smooth things out, all else equal, but takes twice as much perceived/attempted effort for not much more 'randomising'.
::Similarly, requiring 10 full rolls (maybe honestly aiming for 10, but allowing it to be 7.5 or less if not obviously 'just nudged') seems overkill, in the single dimension.
::Except, of course that you also need enough distance (on top of whatever factor you consider practical as a variation-wrapping value, which might not be the ½-in-2 I give) to also roll ''sideways''. If for some reason you really don't want to roll 65536 or 1 (or is it 65535 and 0?), which may be on polar-opposite faces, you might make sure that they are directly to the left and right before you propel the die forwards ''a little'', not caring which distribution of numbers is on/near the rolling-equator (2 is acceptible to you, and 65533, etc; other very low/high values conceivably placed on that thin band of "wheel-like chance" but you're just avoiding the very largest and smallest, or specifically just the one of them) but knowing that it's more unlikely to easily present the exact face(s) you dislike than it might be in a truly 'fair' roll.
::Perhaps the best thing is to have a rolling track to send the thing down that puts it the required "two or so rotations" forward to then either hit a wall or climb slightly up a slope (at a roughly 45 degree angle) that then sends it back roughly sideways to the original vector for a similar distance with a perpendicular or even composite moment of rolling rotation, to bring 'initially axial' numbers fully into play... And that dog-leg would require a sligthly shorter length from launch-position to where the thoroughly mixed-up final stopping point should be, whilst significantly foiling the master-manipulators who actually try to arrange an initial setup that favours better final results (rather than just nudge it, uncaring, for a result not as totally random but certainly not more predominently of desired-for ranges than otherwise). [[Special:Contributions/141.101.99.8|141.101.99.8]] 12:28, 31 May 2022 (UTC)
::At what point does the structural material the die is composed of, combined with its mass, create a smoothing effect that will destroy the fairness of the die. I mean a small plastic die is no problem. A 2-ton acrylic die would start grinding off the edges of some faces with every roll, would it not? [[Special:Contributions/172.69.69.122|172.69.69.122]] 13:35, 31 May 2022 (UTC)

Should it be related to https://xkcd.com/221/ ? [[Special:Contributions/162.158.183.246|162.158.183.246]] 08:07, 31 May 2022 (UTC)

I'm going to wait, I think - I don't think there's room in my attic for this as well as all the Betamax kit, my drawers full of MiniDiscs and my Zune collection. No, I'll sit tight - I'm hearing encouraging things about the introduction of the Magic 65536-Ball... [[User:Yorkshire Pudding|Yorkshire Pudding]] ([[User talk:Yorkshire Pudding|talk]]) 09:41, 31 May 2022 (UTC)
:The number of sides on the die inside the ball is not what determines the name of the ball. It's the exterior housing which is colored in the manner of an Eight Ball. The classic design uses a d20, and is still called an Eight Ball, not a Twenty Ball. [[Special:Contributions/172.70.130.195|172.70.130.195]] 18:00, 31 May 2022 (UTC)
::Full disclosure: I don't have any of those things in my attic. And I'm not entirely sure, but I don't think Randall thinks rolling a d65536 is genuinely the hardest part of generating random 16-bit numbers. And Grape Nuts contain neither grapes nor nuts. [[User:Yorkshire Pudding|Yorkshire Pudding]] ([[User talk:Yorkshire Pudding|talk]]) 23:37, 31 May 2022 (UTC)

I'm suprised the hidden message points to 2624. I would've thought it would point to 2626 to refer to itself. Maybe things didn't get published as intended? Or maybe Randall really just wanted to point people to the Voyager comic? [[User:Linux2647|Linux2647]] ([[User talk:Linux2647|talk]]) 18:13, 31 May 2022 (UTC)
:I'm no ASCII expert, but from the description provided I'm pretty sure the comic URL would require the number representing "26" to show up twice. A die with, say, two 13,359 faces would obviously not be fair. If only Randall had published this as #2625 or #2627! (Or maybe he ''planned'' to publish it last week and had to shuffle his schedule after finalizing this comic?) [[User:GreatWyrmGold|GreatWyrmGold]] ([[User talk:GreatWyrmGold|talk]]) 18:24, 31 May 2022 (UTC)
::Probably the latter, seeing as it doesn't actually line up so that any of them are actually "26". The numbers are xk-cd-.c-om-/2-62-4/, so the 26 and 24 aren't lined up like that. [[Special:Contributions/172.70.126.87|172.70.126.87]] 19:38, 31 May 2022 (UTC)
::To change the number from 24 to 26 would mean changing 13,359 to 13,871. The only way that would be a problem is if 13,871 was already in the comic, which it isn't. Convert 13,359 to hex, it's 342F. In ASCII, 34 is "4", 2F is "/". Add 2 you get 36, so the new hex number is 362F, which converted to decimal is 13,871. [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 11:37, 5 June 2022 (UTC)
:Perl code to decode the ASCII: <pre>perl -E 'for (30827, 25444, 11875, 28525, 12082, 13874, 13359) { print chr($_ >> 8), chr($_ & 0xff) }; print "\n"'</pre>

<big><big>'''Remember that "die" is singular and "dice" is plural'''</big></big> [[User:Mushrooms|Mushrooms]] ([[User talk:Mushrooms|talk]]) 09:30, 1 June 2022 (UTC)

;Might be worth offering some easier alternatives..
Needless to say, 16 ordered coins (eg ordered by the date of their minting) provide a much easier alternative to a d65536.

Other (easy to find) d p^2 - such as 8 ordered d4, or 5 ordered d8 and a coin (or bit-shave a dice.)
It's true some rules need to be applied (the highest number of the die is treated as a 0, and the order of the dice is strictly followed).

For example using a rainbow spectrum ordering of 6d8,
I role: 7, 1, 2, 8, 3, 5. Each dice represents 3 bits -
111-001-010-000-011-101. We shave off the last two bits (because we want 16 bits, not 18, for a d65536)
1110 0101 0000 0111. Hex = E507, which is decimal 58,631.

While it takes a few seconds for a human to convert the number it is quite trivial to write a program to convert an image capture.

There are also specialist dice - such as d16 'hexidice' which provide 4 bits per ordered die, and far less human calculation.
There are even d256 hex dice made, but they suffer the same problem that a d65536 would have.

[[User:20040302|20040302]] ([[User talk:20040302|talk]])
: how are you trivially converting image captures? i still use my keyboard. what's the update? [[Special:Contributions/162.158.79.120|162.158.79.120]] 18:26, 1 June 2022 (UTC)
:For your D8 system, since a D8 absolutely SCREAMS octal, you'll get results from 001 to 1000 octal for each die roll. Just subtract 1, and it's a perfect 3 digit range, 000 to 111! Which feels better than 8, the highest roll, becoming 0, the lowest, like you're doing. And as the previous commenter asked, how is image capture trivial? Especially from a programming perspective? Seems like the ACTUAL trivial method is to put a calculator into scientific mode and just type in the hex number to convert... :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 05:11, 4 June 2022 (UTC)

I found an octahedral Goldberg with 65538 sides, 6 squares and 65532 irregular hexagons, notated GP₄(128,0). Can be constructed by chamfering a cube 7 times (Conway cccccccC). I don't think anything can be closer. [[User:SDSpivey|SDSpivey]] ([[User talk:SDSpivey|talk]]) 04:37, 2 June 2022 (UTC)
:I have had two designs in mind:
:*Start with octahedron, subdivide each face triangle into 16,384 triangular faces (subdivide all original edges into 128ths, effectively, while "halving into quarter-sized triangles), pairing the triangles up into half that many 'diamonds' then inflating to touch the bounding sphere, keeping the diamonds planar and possibly equal area, but will also distort them (some into kites, others may be utterly irregular) so it'll be a (literal?) balancing act to make all tippings between faces equally possible.
:*Start with a tetrahedron, subdivide likewise, stick with the triangles, have the same issue of inflating the faces towards the unit sphere while balancing the resulting distortions.
:I tried to work out something that seems to exactly match the image (or as exactly as I perceive it to be) with mildly distorted hexagons - albeit with the necessary pentagonal substitutions to carry the curvature - formed of (a similarly subdivided set of) sub-triangles drawn out on the original surfaces of either icosahedron or a snub-stellated extension onwards the dodecahedron, but I couldn't get the numbers to add up. Which is not to say that there isn't a way to do it. I was going to spend more time on this issue later, so if I get past the issues, then... Watch this space? [[Special:Contributions/172.70.162.77|172.70.162.77]] 13:17, 2 June 2022 (UTC)

I WAS going to say a far simpler way is to roll a D6 and 4 D10s (what is WITH all the lowercase Ds? Every time I see dice named it's uppercase!), figuring that gives a range of 0 to 69,999, and throw out/re-roll results higher than 65,535. (I realize that probably adjusts the odds, but I would think minimally and equally). Then I realized the D6 can't give a result of 0, so the real range is 10,000 to 69,999. Oops! And a D7 feels weird and rare if it even exists, SO! 5 D10s and still throw out everything above 65,535. :) Oh, and I agree with the Warning text, NEEDS an explanation how these numbers turn into a URL. WITHOUT relying on writing a program or concepts like "big endian", just say what's being done to ONE number, come on! EDIT: Never mind, I figured it out and added a MUCH simpler explanation. :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]])
:I think a D7*2 exists, i.e. a D14div2 (two faces for each of seven digits), though they're rarer than D14s (same idea as a D10, but interlocked heptagonally-based pyramid 'ends') which are already niche. I saw one with days on (Mo/Tu/We/Th/Fr/Sa/Su, leastwise), which is the only vaguely obvious reason for one. Might as well have a spinner. But to save so much 'wasted' rolling, use a D8 and only reject the 8 (or, rather, 8=0, reroll the 7 and all the rest, to prevent actual statistical clumping, ditto onwards from any other 'bust'). [[Special:Contributions/162.158.159.41|162.158.159.41]] 05:48, 4 June 2022 (UTC)
::Yup, didn't think about a D8 (which is extra stupid as I was discussing D8 higher up, LOL!) D'oh! And yes, I didn't think about rolling a day of the week, that would make a D7/D14 useful. Even if it was so labelled, just have Sunday equals 0, Monday is 1, etc. Range becomes 0 to 69999, only about 4,000 possibilities thrown out (I'd probably just re-roll the D7/D14). For a D8 I'd agree with your method.

::Reminds me of a Facebook Memory I had the other day: If you want to confuse someone, ask them why there's a line under the 6 on a D8.[[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:14, 4 June 2022 (UTC)

'''"hexakismyriapentakischiliapentahectatriacontakaihexahedron"''' [From the Explanation] Would anyone care to take a stab at deciphering that word? As of this comment, Google only returns this page as a reference. [[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]]) 01:55, 7 June 2022 (UTC)
:I have not checked for accuracy/consistency with the accepted "large specific number prefixing" conventions, but "hexa" (6) "kismyria" (x10,000) "penta" (5) "kischilia" (x5,000) "penta" (5) "hecta" (x100) "tria" (3) "conta(kai?)" (x10) "hexa" (6) "hedron" (-faced 3d shape")... Possibly constructed by historic geometrical naming rules (historically may not have dealt with myriads enough to establish a firm usage-policy), possibly just the root number* Google Translated to modern Greek, in the latin alphabet and geometrised/de-spaced a bit. It was funny enough for me not to investigate too closely, but this is my impression. It'll be lost once the Incomplete is edited off, anyway, and was never part of the comic to be explained. The 'Incomplete' rewrites sometimes ''do'' seem to need a bit of counter-nerdsniping, but as we don't have an explainexplainxkcd.com to discuss them, in Talk is as good a place as any... :) [[Special:Contributions/172.70.85.211|172.70.85.211]] 09:11, 7 June 2022 (UTC)
::(*) It's the "kai" that gets me. May be the difference between US number ("twelve thousand thirteen") and UK number ("twelve thousand and thirteen"), except for Greek, or "triacontakai" is "thirty", but that seems unweildy to me for "everyday" Greek (ancient or modern) and I'd have used "trideca" before realising that's probably "thirteen" (c.f. "dodecaedron", so... Anyway, to explain my assumption there. Really I could just look it up to be certain! [[Special:Contributions/162.158.159.121|162.158.159.121]] 09:19, 7 June 2022 (UTC)

It seems like it would be inappropriate for me to make the call, as I'm the one who made the fix, but can the "Don't remove this too soon" request for more information on the hidden message trivia be declared resolved? I feel I've made it clear (I feel like fully doing the conversion on every number would seem too bulky). Also, it begs the question, why THAT comic, is it worth mentioning that this makes it seem likely that THIS was supposed to be 2624, and he forgot to update the number? It would have been simple enough to just add 2 to the last number... [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 05:26, 5 June 2022 (UTC)

2613: Bad Map Projection: Madagascator

2022-06-01T18:15:26Z

162.158.159.121: Undo revision 285123 by 108.162.241.11 (talk)

{{comic
| number = 2613
| date = April 29, 2022
| title = Bad Map Projection: Madagascator
| image = bad_map_projection_madagascator.png
| titletext = The projection's north pole is in a small lake on the island of Mahé in the Seychelles, which is off the top of the map and larger than the rest of the Earth's land area combined.
}}

==Explanation==
This is the fifth comic in the series of [[:Category:Bad Map Projections|Bad Map Projections]] displaying Bad Map Projection #248: Madagascator. It came about 10 months after the fourth [[2489: Bad Map Projection: The Greenland Special ]] (#299).

This time, [[Randall]] used the classic {{w|Mercator projection}} but instead of placing the North Pole on top and the South Pole on the bottom it is oriented so that the top is the island of {{w|Mahé, Seychelles|Mahé}}. The map projection is technically a {{w|Oblique Mercator projection}}, with an unusual choice of the cylinder's axis. Since the Mercator projection tends to visually distort areas near the top and bottom of the resulting map, this gives some areas, notably Madagascar, very unusual shapes, hence the name the ''Madagascator'' — a portmanteau of "Madagascar" and "Mercator"!

The Mercator projection became the standard projection for world maps during the 1800s, because a straight line (or {{w|rhumb line}}) in a Mercator map represents a constant bearing relative to true north. Historically, when navigation was performed by compass, this was a very valuable feature, since one (adjusting for the differences between true and magnetic north) could plot a constant-bearing course between two locations by simply looking at their relative direction on the map.

However, in the mid-20th century, the Mercator was {{w|Mercator_projection#Criticism|criticized}} because it causes distortion near the north and south poles of the map, giving an inaccurate impression of relative sizes. The most commonly given example of this is the size of Greenland — although on the Mercator it appears to be larger than Africa in area, Africa in reality covers an area 14 times that of Greenland.

Randall turns this example on its head by making Madagascar, rather than Greenland, appear larger in the ''Madagascator'' than in reality. By contrast with Greenland, the world's largest non-continent island, Madagascar is only the fourth-largest island in the world, behind Greenland, New Guinea, and Borneo.

To accomplish this, instead of placing the north pole of the map at the geographic North Pole, Randall places the north pole of the map on the island of Mahé in Seychelles. As Madagascar is relatively close to Mahé (around 650 mi (1050 km) distant), placing the north pole of the Mercator projection at Mahé significantly distorts the size of Madagascar, making it appear comparable in size to Europe on the map.

But this distortion is even more pronounced when it comes to the island of Mahé itself, as Randall notes in the title text.
Although Mahé, the largest island in Seychelles with an area of 60.7 square mi (157.2 square km), is minuscule even compared to Madagascar, the claim in the title text that it appears "larger than the rest of the Earth's land area combined" is an understatement.

No part of Mahé is visible in the comic, but clicking on the actual comic will open a [https://mrgris.com/projects/merc-extreme/#a4739c9b@-4.64274,55.45253 website] that displays Mercator projections with a pole in any chosen location, with the location of the one opened set to Mahé. The chosen pole is (infinitely far to) the right of the screen, while its {{w|antipodes|antipode}} is on the left. With this, it is possible to see that the island is indeed larger than the rest of the map's land area combined. A single national park within the island rivals Africa in size, and the narrow dirt road closest to the pole appears thicker than Panama. This also reveals that the location of the map's north pole (the "small lake" mentioned by Randall) is the lake impounded by the Rochon Dam, a popular tourist location in Mahé.

Unlike previous Bad Map Projections, Morocco and Western Sahara are drawn as one unlabelled country.

===Comparison of actual/mapped areas===
{| class="wikitable sortable"
! Landmass
! Status
! data-sort-type="number"|Actual Area<ref name="act">Major contiguous land areas that should exclude all islands, ''especially'' major ones, '''''especially''''' especially those listed separately</ref> (Millions of Km²)
! data-sort-type="number"|Proportion Land Area
! data-sort-type="number"|Proportion Image Area<ref name="pri">Of only these listed areas listed</ref>
! data-sort-type="number"|Distortion<ref name="dis">NB. Difference between percentages, rather than percentage difference</ref>
|-
| Africa<ref name="suez">Edge at Suez Canal</ref> || data-sort-value="C2"|Continent 2nd largest || 29.7 || 19.95% || 35% || +15.1%
|-
| Eurasia<ref name="suez" /> || data-sort-value="C1"|Continent Largest || 53.4 || 35.83% || 30% || -5.83%
|-
| North America<ref name="pan">Edge at Panama Canal</ref> || data-sort-value="C3"|Continent 3rd largest || 19.3 || 12.96% || 15% || +2.04%
|-
| South America<ref name="pan" /> || data-sort-value="C4"|Continent 4th largest || 17.8 || 11.96% || 7.8% || -4.16%
|-
| Antarctica<ref name="ice">Significant ice-sheets may complicate mapped/actual 'land' areas</ref> || data-sort-value="C5"|Continent 5th largest || 14.2 || 9.53% || 5.3% || -4.23%
|-
| Madagascar || data-sort-value="I04"|Island 4th largest || 0.592 || 0.40% || 2.9% || +2.50%
|-
| Australia || data-sort-value="C7"|Continent Smallest || 7.55 || 5.07% || 2.5% || -2.57%
|-
| Greenland<ref name="ice" /> || data-sort-value="I01"|Island Largest || 2.17 || 1.45% || 0.87% || -0.58%
|-
| Borneo || data-sort-value="I03"|Island 3rd largest || 0.749 || 0.50% || 0.37% || -0.13%
|-
| New Guinea || data-sort-value="I02"|Island 2nd largest || 0.786 || 0.53% || 0.32% || -0.21%
|-
| Japan<ref name="hon">Honshu only</ref> || data-sort-value="I07"|Island 7th largest || 0.228 || 0.15% || 0.10% || -0.05%
|-
| Mainland Britain || data-sort-value="I09"|Island 9th largest || 0.209 || 0.14% || 0.10% || -0.04%
|-
| Island of Ireland || data-sort-value="I20"|Island 20th largest || 0.082 || 0.05% || 0.03% || -0.02%
|}

<references/>

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
Bad map projection #248: Madagascator

Mercator projection but with the North Pole in the Indian Ocean so it exaggerates the size of Madagascar instead of Greenland. Various countries and oceans are labeled, and country borders are shown.
{{comic discussion}}

[[Category:Bad Map Projections]]

2625: Field Topology

2022-05-29T03:30:36Z

162.158.159.121: /* Transcript */ Because 'oblong' can be taken as 'rectangular' (rather than round-cornered elongated shapes), I feel 'lozange' is better here. Looks like the usual Transcript formatting is lacking, too, but I'm sure someone else will do that polishing...

{{comic
| number = 2625
| date = May 27, 2022
| title = Field Topology
| image = field_topology.png
| titletext = The combination croquet set/10-lane pool can also be used for some varieties of foosball and Skee-Ball.
}}

==Explanation==
{{incomplete|Created by SOMEBODY HOMEOMORPHIC TO YOUR DOG - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

This comic strip depicts a situation where the common practice of multi-use athletic facilities has been organised and constructed based soley on criteria in which sports are grouped by the {{w|topology|topological equivalence}} of their fields. (not to be confused with {{w|Field (mathematics)|mathematical fields}}, or the {{w|Fields Medal}} prize -- although successfully {{w|Straightedge and compass construction|constructing}} these fields might lead to medals of one kind or another being granted).

In topology, shapes which can be smoothly deformed into one another without adding or removing holes are considered to be "equivalent". Note that a topological hole is an area of the nominal space (or area, or other manifold) through which nothing restricted to this topology can pass. In describing a real-world archway, for example, this would be where the material of the arch is, not the actual 'hole' passing ''through'' the constructed arch, which is the path that one indeed may (or must!) pass through to get from one region of the layout to another. A loop is a path across the allowable territory of a topology (or a viable circuit to make through the world it describes) that end up where it started. If a loop cannot be tightened (ultimately adjusted to take a shorter path) down to a single point, then it must be wrapped around at least one 'topological hole' (i.e. through a physical one), and you have separately unique paths (or points, i.e. on different disconnected topologies) where you cannot adjust one loop to take the route of another, without severing a looped-path and reconnecting it.

{{w|Baseball}}, and {{w|tetherball}} are played on fields without any holes that the ball or players can completely pass through, so they are ({{w|Group (mathematics)|grouped}}) (physically and mathmatically) into one continuous field without holes. The goals on a {{w|soccer}} field presumably do not create holes because the goalposts and crossbar are connected to the field by the net, so the goals and field are topologically equivalent to a smooth disc. Any path taken into and out of the goal (any number of times) is topologically equivalent to one that does not go into this pocket of space at all.

{{w|Volleyball}} and {{w|badminton}} are played on a court through the center of which passes a net suspended from poles, and the {{w|high jump}} has a bar that contestants jump over. The space bounded by the bottom of the net (or bar), the supporting poles, and the ground can be considered to be a hole, a path over and under the net/bar cannot be simplified to one that does not, so their fields all have one "hole".

A basketball court has two physical pathable holes, the nets. Parallel bars can be thought of as two rectangles and thus as two topographical "holes". Both have opportunities to path through either (or both) structures, and so the material of the structures define a hole in the topological abstract of the playing 'surface'. The inclusion of an American football field is perplexing. Commonly, an American football field uses a "Y" shaped upright, making the field topologically equivalent to a plane. However, at lower levels of play (primary and secondary schools), sometimes an "H" shaped upright is used, which creates a topological hole under the crossbar at both ends of the field. The comic might instead refer to Gaelic football or Rugby, both of which use "H" shaped goals and are called "football" in certain contexts. The open-top of the goals is physically an analogue of soccer goals, but as a closed frame of the bottom does not have a net (except in Gaelic Football) these demonstrate topological loops. An alternate explanation would consider passage between the sidebars but at any ''indefinite'' distance above the crossbar (however supported above the ground) to be a special space for scoring purposes, and the topological hole would relate to these limits, held above the ground in a manner not dissimilar to the basketball hoop – although this interpretation is incompatible with 'abstracting away' the special nature of the soccer goal-mouth in its own representation.

The lane dividers in a swimming pool create bounded holes on the 'playing surface' equivalent to the number of lanes. And each hoop in croquet is a hole with one edge bounded by the playing surface. Similarly, as mentioned in the title text, this configuration is also {{w|homeomorphism|homeomorphic}} to a {{w|foosball}} table (with each rod sustaining the player figures above the table defining a hole) or a {{w|Skee-Ball}} lane (which is even more straightforward, as it is just a plane with several holes in which to throw balls).

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

A row of four signs, each held up by two posts, followed by a row of four roughly lozange shapes, one for each sign. The signs and lozange shapes are shaded as if three-dimensional objects, all being flattish with a small third dimension. The four oblongs are presented at an oblique angle, as if they are in "front" of the signs extending towards the viewer. All but the first oblong have various numbers of holes "through" them.

zero holes: "Baseball. Soccer. Tetherball."

one hole: "Volleyball. Badminton. High jump."

two holes: Basketball. Football. Parallel bars."

nine holes: "Olympic swimming. Croquet."

Image caption: "No one ever wants to use the topology department's athletic fields."

{{comic discussion}}
[[Category:Math]]
[[Category:Sport]]

2625: Field Topology

2022-05-29T03:27:29Z

162.158.159.121: /* Explanation */

{{comic
| number = 2625
| date = May 27, 2022
| title = Field Topology
| image = field_topology.png
| titletext = The combination croquet set/10-lane pool can also be used for some varieties of foosball and Skee-Ball.
}}

==Explanation==
{{incomplete|Created by SOMEBODY HOMEOMORPHIC TO YOUR DOG - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

This comic strip depicts a situation where the common practice of multi-use athletic facilities has been organised and constructed based soley on criteria in which sports are grouped by the {{w|topology|topological equivalence}} of their fields. (not to be confused with {{w|Field (mathematics)|mathematical fields}}, or the {{w|Fields Medal}} prize -- although successfully {{w|Straightedge and compass construction|constructing}} these fields might lead to medals of one kind or another being granted).

In topology, shapes which can be smoothly deformed into one another without adding or removing holes are considered to be "equivalent". Note that a topological hole is an area of the nominal space (or area, or other manifold) through which nothing restricted to this topology can pass. In describing a real-world archway, for example, this would be where the material of the arch is, not the actual 'hole' passing ''through'' the constructed arch, which is the path that one indeed may (or must!) pass through to get from one region of the layout to another. A loop is a path across the allowable territory of a topology (or a viable circuit to make through the world it describes) that end up where it started. If a loop cannot be tightened (ultimately adjusted to take a shorter path) down to a single point, then it must be wrapped around at least one 'topological hole' (i.e. through a physical one), and you have separately unique paths (or points, i.e. on different disconnected topologies) where you cannot adjust one loop to take the route of another, without severing a looped-path and reconnecting it.

{{w|Baseball}}, and {{w|tetherball}} are played on fields without any holes that the ball or players can completely pass through, so they are ({{w|Group (mathematics)|grouped}}) (physically and mathmatically) into one continuous field without holes. The goals on a {{w|soccer}} field presumably do not create holes because the goalposts and crossbar are connected to the field by the net, so the goals and field are topologically equivalent to a smooth disc. Any path taken into and out of the goal (any number of times) is topologically equivalent to one that does not go into this pocket of space at all.

{{w|Volleyball}} and {{w|badminton}} are played on a court through the center of which passes a net suspended from poles, and the {{w|high jump}} has a bar that contestants jump over. The space bounded by the bottom of the net (or bar), the supporting poles, and the ground can be considered to be a hole, a path over and under the net/bar cannot be simplified to one that does not, so their fields all have one "hole".

A basketball court has two physical pathable holes, the nets. Parallel bars can be thought of as two rectangles and thus as two topographical "holes". Both have opportunities to path through either (or both) structures, and so the material of the structures define a hole in the topological abstract of the playing 'surface'. The inclusion of an American football field is perplexing. Commonly, an American football field uses a "Y" shaped upright, making the field topologically equivalent to a plane. However, at lower levels of play (primary and secondary schools), sometimes an "H" shaped upright is used, which creates a topological hole under the crossbar at both ends of the field. The comic might instead refer to Gaelic football or Rugby, both of which use "H" shaped goals and are called "football" in certain contexts. The open-top of the goals is physically an analogue of soccer goals, but as a closed frame of the bottom does not have a net (except in Gaelic Football) these demonstrate topological loops. An alternate explanation would consider passage between the sidebars but at any ''indefinite'' distance above the crossbar (however supported above the ground) to be a special space for scoring purposes, and the topological hole would relate to these limits, held above the ground in a manner not dissimilar to the basketball hoop – although this interpretation is incompatible with 'abstracting away' the special nature of the soccer goal-mouth in its own representation.

The lane dividers in a swimming pool create bounded holes on the 'playing surface' equivalent to the number of lanes. And each hoop in croquet is a hole with one edge bounded by the playing surface. Similarly, as mentioned in the title text, this configuration is also {{w|homeomorphism|homeomorphic}} to a {{w|foosball}} table (with each rod sustaining the player figures above the table defining a hole) or a {{w|Skee-Ball}} lane (which is even more straightforward, as it is just a plane with several holes in which to throw balls).

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

A row of four signs, each held up by two posts, followed by a row of four roughly oblong shapes, one for each sign. The signs and oblong shapes are shaded as if three-dimensional objects, all being flattish with a small third dimension. The four oblongs are presented at an oblique angle, as if they are in "front" of the signs extending towards the viewer. All but the first oblong have various numbers of holes "through" them.

zero holes: "Baseball. Soccer. Tetherball."

one hole: "Volleyball. Badminton. High jump."

two holes: Basketball. Football. Parallel bars."

nine holes: "Olympic swimming. Croquet."

Image caption: "No one ever wants to use the topology department's athletic fields."

{{comic discussion}}
[[Category:Math]]
[[Category:Sport]]

Talk:2622: Angular Diameter Turnaround

2022-05-21T10:15:15Z

162.158.159.121: Raising the "very old phones were big" interpretation.

== Congratulations, you won a brand new galaxy! ==

Your new galaxy will be delivered in only 3 billion years, to a drop-off point only 1 million light years from your home planet. With this cutting-edge protogalaxy, which will be mature upon delivery, you will find incredible features such as:
* supermassive black hole
* exotic spacefaring lifeforms
* intriguing dense matter that does not emit radiation, you'll never have enough
* unique and enthralling galactic formations, each with ancient magical myths told in history by the spacefaring lifeforms
* and the ability to grow brand new stars!
[[Special:Contributions/172.70.114.247|172.70.114.247]] 00:07, 21 May 2022 (UTC)

== Comments ==



Slightly creepy, NGL[[Special:Contributions/172.69.34.10|172.69.34.10]]
: Warning, horrible content: The universe was created by the severed bloody hands of google employees convincing phone manufacturers to ditch the previous phone backends and explode the google play store throughout reality in a mess of intergalactic gore. Our planet developed from an angrybirds download, nourished by the decaying corpse of the owner who played it all their life. [[Special:Contributions/172.70.110.209|172.70.110.209]] 20:37, 20 May 2022 (UTC)

So apparently this is a real thing, which I never knew [[wikipedia:Angular_diameter_distance#Turnover_Point]] [[Special:Contributions/108.162.221.81|108.162.221.81]] 20:46, 20 May 2022 (UTC)

Could be related to comic 1422, what with both containing expanding phones analogous to some cosmic structure. [[Special:Contributions/172.70.130.105|172.70.130.105]] 21:46, 20 May 2022 (UTC)
:[[1422]] has been crapped. [[Special:Contributions/172.70.126.221|172.70.126.221]] 21:50, 20 May 2022 (UTC)

So confusing…I thought that 13 billion years ago they had flip phones. [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 22:32, 20 May 2022 (UTC)

Before this explanation is marked “complete” it had better mention that “sinking into dilute blood” is a terrible (one could even say ignorant or stupid) description of red shift, completely missing the fundamental cause and completely distorting the effect. [[Special:Contributions/108.162.216.159|108.162.216.159]] 23:23, 20 May 2022 (UTC)

I assumed the reference was that very old cell phones (1990s etc.) were enormous - think carphones; technology allowed them to shrink (giving, say, the Nokia 8850 I owned in 1999 and the original smallish iPhone), and then recent phones have (on average) grown again as the benefits of a larger screen area have been seen to outweigh the convenience of a smaller device. Also older phones tended to have batteries that lasted longer, mostly because neither the screen nor the processor were pulling much power. It's not just that the original iPhone was smaller than current ones (nor, for some of us, does the original iPhone count as an "early cellphone"). Am I alone in this interpretation? The description (at time of writing) didn't seem to cover that.[[Special:Contributions/162.158.159.121|162.158.159.121]] 10:15, 21 May 2022 (UTC)

== Hooray! ==

Something good is happening!!!!!! [[Special:Contributions/172.70.126.215|172.70.126.215]] 21:22, 20 May 2022 (UTC)
: No. It just means you can't get a date tonight {{citation needed}}. {{citation needed}}. (I presume you're the "crap"per, right? Eager to fill your own worthless {{citation needed}} life by making ''everybody else'' actually feel useful... How ironic.) [[Special:Contributions/172.70.91.36|172.70.91.36]] 00:08, 21 May 2022 (UTC)
:: I thought it was just a visitor I worried I had badly depressed with my story of severed google hands, wanting to add positivity. [[Special:Contributions/162.158.79.112|162.158.79.112]] 00:21, 21 May 2022 (UTC)
: the "crap"er is a bot called "Explain xkcd server admin". -> https://www.explainxkcd.com/wiki/index.php/User:Explain_xkcd_server_admin/common.js [[User:Firestar233|Firestar233]] ([[User talk:Firestar233|talk]]) 00:11, 21 May 2022 (UTC)
:: Yes, same (style) as the umpteen previous times. No imagination {{citation needed}} and rather boring {{citation needed}}.
:: Now I'm limited in what I can do (still, been reverting pages left right and centre, to hold my bit up) but the "Hooray!" commenter (as, I suspect, the one who 'wished the crap would happen again' the other day, or words to that effect) seems to be very much like someone's idea of taunting us, thus proving that he (if you'll excuse that assumption) can't get laid and for some reason they haven't discovered the more solo method of getting their rocks off {{citation needed}}, so he's rubbing up against us and trying to generate the satisfying feeling of friction in his groin {{citation needed}}.
:: (You know when your dog has a favourite stuffed toy? Like that.)
:: Pretty boring, really, for us. But small things amuse small minds. And maybe that's the reason why {{citation needed}}. Also having small... 'feet' {{citation needed}}. Too shy to show his 'feet' to girls {{citation needed}}. Can't earn enough to get 'feet' enlargement surgery {{citation needed}}. No personality either {{citation needed}}. Pity. [[Special:Contributions/172.70.85.211|172.70.85.211]] 02:43, 21 May 2022 (UTC)

1335: Now

2022-05-03T05:12:27Z

162.158.159.121: /* Timed Links */ Nice table, but too wide in my browser (beyond usual page-limits), so I think this realignment works. (Might have also been Ok in 3x8hr chunks, but this is easier to convert to.)

<div class="plainlinks">
{{comic
| number = 1335
| before = ''Explainxkcd note: The image below is accelerated to show a full day's spin in approximately 10 seconds. The actual comic completes one revolution per day. For the current state, see [http://xkcd.com/now/ xkcd.com/now]''
| date = February 26, 2014
| title = Now
| image = now.gif
| titletext = This image stays roughly in sync with the day (assuming the Earth continues spinning). Shortcut: xkcd.com/now
}}
</div>

==Explanation==
The picture is divided in 24 segments representing the 24 hours of the day. At noon and at midnight the break between segments is indicated by the tip of a dark grey triangle.

The picture rotates by 3.75 {{w|degree (angle)|degrees}} every 15 minutes, as does the Earth, so that it is constantly up to date in showing which regions are currently at which times of day. The picture change seems to happen half-way through a 15-minute time increment (that is, at 7½, 22½, 37½, and 52½ minutes after each hour), so that the picture is always correct for the nearest multiple of 15 minutes.

The map projection of the earth in the middle of the picture shows an {{w|azimuthal equidistant projection}} with the {{w|South Pole}} in the center. This is unusual, as the projection typically puts the north pole in the center, but necessary in order for it to rotate clockwise. [[Randall]] was playing on projections before in [[977: Map Projections]].

The list of cities and countries doesn't match the map exactly - notice how the continent of Australia is shifted counterclockwise of the words "most Australian cities". This is because the map is centered relative to the {{w|time zone}}s and the local variations therein. The map shows the configuration of time zones with respect to {{w|daylight saving time}} (also known as summer time) at the time of the comic's initial release (February 2014); it was being observed in parts of Australia, New Zealand, Brazil, and other countries not named in this comic. If the map were to stay accurate through the year, the location of place names would have to move over the next few months as parts of the southern hemisphere went off DST and parts of the northern hemisphere went onto it; however, the map failed to change on the morning of March 9 as it should have (to recognize the start of DST in North America).

In many countries "{{w|business hours}}" are considered to be from 9 am to 5 pm. With some exceptions, including emergencies, it is generally considered rude to place a {{w|telephone}} call to someone's residence during the hours when most people are asleep; Randall portrays this time period as extending from 10 pm to 8 am. This may be a reference to the 10 pm "cutoff" time [http://www.youtube.com/watch?v=L0WeQJW-H3Y discussed] in an episode of "Curb Your Enthusiasm."

"Rude to Call" was also the name used by a G-mail experimental opt-in feature in 2009 which added a crossed out phone symbol next to the sender if it was night in the sender's time zone when the reader loaded the email on their screen.

On midnight at UTC we can see this situation:
*00:00 UTC {{w|Greenwich Mean Time}}
::UK, Portugal
::West Africa
*01:00 UTC {{w|Central European Time}}
::Most of central Europe
::Nigeria, and many more countries belonging to the {{w|West Africa Time}} zone
*02:00 UTC {{w|Eastern European Time}}
::Eastern Europe, many countries like Bulgaria, Romania or Greece
::The {{w|Levant}}
::Egypt
*03:00 UTC {{w|UTC+03:00}} (East Africa Time, Eastern Europe Forward Time, and Arabia Standard Time)
::Ethiopia, Kenya, Madagascar, Somalia, and more
::Kaliningrad and Belarus
::Iraq, Kuwait, Saudi Arabia, and more.
::Iran is at {{w|Iran Standard Time}}, using an offset of UTC+03:30
*04:00 UTC {{w|UTC+04:00}}
::{{w|Moscow Time}}
::United Arab Emirates, Mauritius, and more
::Afghanistan is at {{w|Time in Afghanistan}}, using an offset of UTC+04:30
::Iran is at {{w|Iran Standard Time}}, using an offset of UTC+03:30
*05:00 UTC {{w|UTC+05:00}}
::Pakistan, Western Australia, Maldives and some France former colonies.
::Afghanistan is at {{w|Time in Afghanistan}}, using an offset of UTC+04:30
::India and Sri Lanka using {{w|UTC+05:30}}
::Nepal is using a much more odd offset at {{w|UTC+05:45}}
*06:00 UTC {{w|UTC+06:00}}
::Bangladesh, Bhutan...
::UK {{w|British Indian Ocean Territory}}
::Russia at {{w|Yekaterinburg Time}}, also Kazakhstan and Kyrgyzstan
::China only use {{w|Time in China|one time zone}} (+08:00) but Xinjiang and Tibet unofficially use +06:00
::India and Sri Lanka using {{w|UTC+05:30}}
::Nepal is using a much more odd offset at {{w|UTC+05:45}}
*07:00 UTC {{w|UTC+07:00}}
::South-east Asia like Cambodia, Indonesia, Thailand, Vietnam, and more
::Christmas Island belonging to Australia
::Russia is also using the {{w|Omsk Time}}
*08:00 UTC {{w|UTC+08:00}}
::Western Australia
::China uses only {{w|Time in China|one time zone}} while the country spans about five.
::Singapore
::Philippines
::Perth
*09:00 UTC {{w|UTC+09:00}}
::Japan
::The Koreas
*10:00 UTC {{w|UTC+10:00}}
::Brisbane and the Australian Capital Territory, New South Wales, Queensland, Tasmania and Victoria
::US: Guam and Northern Mariana Islands
*11:00 UTC {{w|UTC+11:00}}
::Micronesia, New Caledonia, Solomon Islands, Vanuatu
::Russia {{w|Vladivostok Time}}
*12:00 UTC {{w|UTC+12:00}} or {{w|UTC−12:00}}
::Kamchatka (a Russian peninsula at the east Siberia), Kiribati, Marshall Islands, Nauru, Tuvalu and more
*13:00 UTC {{w|UTC+13:00}} or {{w|UTC−11:00}}
::New Zealand, Kiribati, Tonga
*14:00 UTC {{w|UTC+14:00}} or {{w|UTC−10:00}}
::Hawaii, Samoa
::French Polynesia, Cook Islands, and more
::Line Islands, belonging to Kiribati
*15:00 UTC {{w|UTC−09:00}}
::{{W|Time in Alaska|Alaska}} (some islands of Alaska is at -10:00 and a few city's are at -08:00)
::French Polynesia
*16:00 UTC {{w|UTC−08:00}} or {{w|Pacific Time Zone}}
::US West Coast
::Canada or (British Columbia and Yukon)
::Mexico (Baja California)
*17:00 UTC {{w|UTC−07:00}} or {{w|Mountain Time Zone}}
::US: Denver, and much more
::Canada: Alberta (Calgary, Edmonton), British Columbia, more
*18:00 UTC {{w|UTC−06:00}} or {{w|Central Time Zone}}
::Mexico, Chile, Ecuador, Nicaragua and more
::US: Chicago, Texas except of some most westernmost counties, and many more
*19:00 UTC {{w|UTC−05:00}} or {{w|Eastern Time Zone}}
::Eastern Canada like Ontario or Quebec
::US East Coast including New York and Florida.
::But also Cuba, Haiti, Panama and much more countries
*20:00 UTC {{w|UTC−04:00}} or {{w|Atlantic Time Zone}}
::Canadian Maritimes: New Brunswick, Prince Edward Island, Nova Scotia. (Newfoundland uses {{w|UTC-03:30}})
::Chile
::Greenland
::Most of the Caribbean Islands.
*21:00 UTC {{w|UTC−03:00}}
::Coastal Brazil, Argentina, Uruguay, French Guiana, the UK Falkland Islands, and more
*22:00 UTC {{w|UTC−02:00}}
::UK: South Georgia and the South Sandwich Islands
::Brazil: Fernando de Noronha
*23:00 UTC {{w|UTC−01:00}}
::Cape Verde
::Azores (part of Portugal)

==Technical notes==
When first posted, the picture was exactly 12 hours off. Somewhere around 5:10 UTC, this was fixed. The original version also included a listing for Inland Brazil; this could have created a conflict with US East Coast when Daylight-Saving Time begins in the US, and it has been removed.

The names used for the image files refer not to {{w|Universal Time|UTC (Universal Time)}} as one might expect but rather to the time exactly 12 hours off of that. The name of the image file linked from the page matched Universal Time during the first few hours, but the file-naming scheme did not change when the comic was corrected.

==Transcript==
:[The comic is a moving circle with a static outer ring.]

:[The outermost part of the static ring is divided in 22 segments representing the 24 hours of the day. The Noon (11 AM - 1 PM) and Midnight (11 PM - 1 AM) segments cover two hours which are not segmented. The ring is divided so it is yellow from 6 AM to 6 PM and dark grey on the other half.]
::Noon - 6 PM - Midnight - 6 AM

:[The innermost part of the static ring is light grey and divided in two sections that cower from 9 AM to 5 PM and from 10 PM to 8 AM respectively. They contain descriptions of the time intervals.]
::Business hours (9-5)
::Rude to call

:[The rest of the image consist of a rotating part.]

:[On the innermost part of the circle is the Earth as seen from the south pole. Each continent has a different color. The colors are
:*Europe: Red
:*Africa: Cyan
:*Asia: Green
:*Oceania: Purple
:*North America: Blue-violet
:*South America: Olive green
:*Antarctica (The south pole): Light grey

:[Two segmented rings circle the map - these give the names of the continents (not the Antactica) and the color of the ring match the color of the continent on the map. Each segment cover the part of the map with the given continent. The one with Europe is merged with the one for Asia - and the color also merges from red to green along Turkey and Russia where the transition from Europe to Asia occurs.]

:[On the inner ring are the names of the following continents (white text on a segment with the color of the continent)]
::Africa
::Oceania
::South America

:[On the second of these rings are the names of the following continents (white text on a segment with the color of the continent)]
::Europe Asia
::North America

:[On the outermost ring of the moving circle are written names of regions, countries and cities of the Earth over the part of the map in which time zone they belong. All the text is color coded to match the color of the continent they belong to as given on the central map. The text is written in four lines. Below the names are sorted by color and reading from left to right first - and only sorting top to bottom if needed.]

:[Europe - Red text:]
::UK - Most of Europe - Eastern Europe

:[Africa - Cyan text:]
::West Africa - Nigeria - Egypt - East Africa

:[Asia - Green text:]
::The Levant - Iraq - Iran - Moscow - Afghanistan - Pakistan - India - Southeast Asia - Java - China - Singapore - Philippines - Japan - The Koreas - Kamchatka

:[Oceania - Purple text:]
::Perth - Brisbane - Most Australian cities - New Zealand

:[North America - Blue-violet text:]
::Alaska - US West Coast - Denver - Mexico - Chicago - Texas - Eastern Canada - US East coast - Canadian Maritimes

:[South America - Olive green text:]
:: Coastal Brazil

==Implementations==
There are currently several implementations of the Now comic available for several different platforms:

===Windows===
A [https://github.com/leipert/xkcd-now-clock script] that automatically updates the wallpaper for the current time.

===Linux===
A [https://github.com/151henry151/randall-clock-desktop-background bash script] that automatically updates the wallpaper for the current time, written for a Debian system running i3. May work well for other linux distributions as well.

===Android===
An [https://play.google.com/store/apps/details?id=net.phillab.xkcd_now Android widget] version of the comic.

===Web===
A [http://www.xkcdnow.com/ web-based implementation] which also displays time zones. (Not working on 02017-08-16)

A [http://c0la.s3.amazonaws.com/xkcd1335.html draggable] implementation (click&drag - left and right) (Not working on 02017-08-16)

===Cross-Platform===
An [https://github.com/BruceJohnJennerLawso/xkcd-Now/releases/tag/1.02 offline version of the comic] made using C++ and SFML.

==Timed Links==
{| class="wikitable"
|+ Links to each individual comic image
|-
!00h!!01h!!02h!!03h!!04h!!05h
|-
|[http://imgs.xkcd.com/comics/now/00h00m.png 00h00m] [http://imgs.xkcd.com/comics/now/00h15m.png 00h15m] [http://imgs.xkcd.com/comics/now/00h30m.png 00h30m] [http://imgs.xkcd.com/comics/now/00h45m.png 00h45m]
|[http://imgs.xkcd.com/comics/now/01h00m.png 01h00m] [http://imgs.xkcd.com/comics/now/01h15m.png 01h15m] [http://imgs.xkcd.com/comics/now/01h30m.png 01h30m] [http://imgs.xkcd.com/comics/now/01h45m.png 01h45m]
|[http://imgs.xkcd.com/comics/now/02h00m.png 02h00m] [http://imgs.xkcd.com/comics/now/02h15m.png 02h15m] [http://imgs.xkcd.com/comics/now/02h30m.png 02h30m] [http://imgs.xkcd.com/comics/now/02h45m.png 02h45m]
|[http://imgs.xkcd.com/comics/now/03h00m.png 03h00m] [http://imgs.xkcd.com/comics/now/03h15m.png 03h15m] [http://imgs.xkcd.com/comics/now/03h30m.png 03h30m] [http://imgs.xkcd.com/comics/now/03h45m.png 03h45m]
|[http://imgs.xkcd.com/comics/now/04h00m.png 04h00m] [http://imgs.xkcd.com/comics/now/04h15m.png 04h15m] [http://imgs.xkcd.com/comics/now/04h30m.png 04h30m] [http://imgs.xkcd.com/comics/now/04h45m.png 04h45m]
|[http://imgs.xkcd.com/comics/now/05h00m.png 05h00m] [http://imgs.xkcd.com/comics/now/05h15m.png 05h15m] [http://imgs.xkcd.com/comics/now/05h30m.png 05h30m] [http://imgs.xkcd.com/comics/now/05h45m.png 05h45m]
|-
!06h!!07h!!08h!!09h!!10h!!11h
|-
|[http://imgs.xkcd.com/comics/now/06h00m.png 06h00m] [http://imgs.xkcd.com/comics/now/06h15m.png 06h15m] [http://imgs.xkcd.com/comics/now/06h30m.png 06h30m] [http://imgs.xkcd.com/comics/now/06h45m.png 06h45m]
|[http://imgs.xkcd.com/comics/now/07h00m.png 07h00m] [http://imgs.xkcd.com/comics/now/07h15m.png 07h15m] [http://imgs.xkcd.com/comics/now/07h30m.png 07h30m] [http://imgs.xkcd.com/comics/now/07h45m.png 07h45m]
|[http://imgs.xkcd.com/comics/now/08h00m.png 08h00m] [http://imgs.xkcd.com/comics/now/08h15m.png 08h15m] [http://imgs.xkcd.com/comics/now/08h30m.png 08h30m] [http://imgs.xkcd.com/comics/now/08h45m.png 08h45m]
|[http://imgs.xkcd.com/comics/now/09h00m.png 09h00m] [http://imgs.xkcd.com/comics/now/09h15m.png 09h15m] [http://imgs.xkcd.com/comics/now/09h30m.png 09h30m] [http://imgs.xkcd.com/comics/now/09h45m.png 09h45m]
|[http://imgs.xkcd.com/comics/now/10h00m.png 10h00m] [http://imgs.xkcd.com/comics/now/10h15m.png 10h15m] [http://imgs.xkcd.com/comics/now/10h30m.png 10h30m] [http://imgs.xkcd.com/comics/now/10h45m.png 10h45m]
|[http://imgs.xkcd.com/comics/now/11h00m.png 11h00m] [http://imgs.xkcd.com/comics/now/11h15m.png 11h15m] [http://imgs.xkcd.com/comics/now/11h30m.png 11h30m] [http://imgs.xkcd.com/comics/now/11h45m.png 11h45m]
|-
!12h!!13h!!14h!!15h!!16h!!17h
|-
|[http://imgs.xkcd.com/comics/now/12h00m.png 12h00m] [http://imgs.xkcd.com/comics/now/12h15m.png 12h15m] [http://imgs.xkcd.com/comics/now/12h30m.png 12h30m] [http://imgs.xkcd.com/comics/now/12h45m.png 12h45m]
|[http://imgs.xkcd.com/comics/now/13h00m.png 13h00m] [http://imgs.xkcd.com/comics/now/13h15m.png 13h15m] [http://imgs.xkcd.com/comics/now/13h30m.png 13h30m] [http://imgs.xkcd.com/comics/now/13h45m.png 13h45m]
|[http://imgs.xkcd.com/comics/now/14h00m.png 14h00m] [http://imgs.xkcd.com/comics/now/14h15m.png 14h15m] [http://imgs.xkcd.com/comics/now/14h30m.png 14h30m] [http://imgs.xkcd.com/comics/now/14h45m.png 14h45m]
|[http://imgs.xkcd.com/comics/now/15h00m.png 15h00m] [http://imgs.xkcd.com/comics/now/15h15m.png 15h15m] [http://imgs.xkcd.com/comics/now/15h30m.png 15h30m] [http://imgs.xkcd.com/comics/now/15h45m.png 15h45m]
|[http://imgs.xkcd.com/comics/now/16h00m.png 16h00m] [http://imgs.xkcd.com/comics/now/16h15m.png 16h15m] [http://imgs.xkcd.com/comics/now/16h30m.png 16h30m] [http://imgs.xkcd.com/comics/now/16h45m.png 16h45m]
|[http://imgs.xkcd.com/comics/now/17h00m.png 17h00m] [http://imgs.xkcd.com/comics/now/17h15m.png 17h15m] [http://imgs.xkcd.com/comics/now/17h30m.png 17h30m] [http://imgs.xkcd.com/comics/now/17h45m.png 17h45m]
|-
!18h!!19h!!20h!!21h!!22h!!23h
|-
|[http://imgs.xkcd.com/comics/now/18h00m.png 18h00m] [http://imgs.xkcd.com/comics/now/18h15m.png 18h15m] [http://imgs.xkcd.com/comics/now/18h30m.png 18h30m] [http://imgs.xkcd.com/comics/now/18h45m.png 18h45m]
|[http://imgs.xkcd.com/comics/now/19h00m.png 19h00m] [http://imgs.xkcd.com/comics/now/19h15m.png 19h15m] [http://imgs.xkcd.com/comics/now/19h30m.png 19h30m] [http://imgs.xkcd.com/comics/now/19h45m.png 19h45m]
|[http://imgs.xkcd.com/comics/now/20h00m.png 20h00m] [http://imgs.xkcd.com/comics/now/20h15m.png 20h15m] [http://imgs.xkcd.com/comics/now/20h30m.png 20h30m] [http://imgs.xkcd.com/comics/now/20h45m.png 20h45m]
|[http://imgs.xkcd.com/comics/now/21h00m.png 21h00m] [http://imgs.xkcd.com/comics/now/21h15m.png 21h15m] [http://imgs.xkcd.com/comics/now/21h30m.png 21h30m] [http://imgs.xkcd.com/comics/now/21h45m.png 21h45m]
|[http://imgs.xkcd.com/comics/now/22h00m.png 22h00m] [http://imgs.xkcd.com/comics/now/22h15m.png 22h15m] [http://imgs.xkcd.com/comics/now/22h30m.png 22h30m] [http://imgs.xkcd.com/comics/now/22h45m.png 22h45m]
|[http://imgs.xkcd.com/comics/now/23h00m.png 23h00m] [http://imgs.xkcd.com/comics/now/23h15m.png 23h15m] [http://imgs.xkcd.com/comics/now/23h30m.png 23h30m] [http://imgs.xkcd.com/comics/now/23h45m.png 23h45m]
|}

{{comic discussion}}
[[Category:Comics with color]]
[[Category:Dynamic comics]]
[[Category:Time]]