explain xkcd - User contributions [en]

2848: Breaker Box

2023-10-31T21:12:33Z

141.101.99.166: /* Explanation */

{{comic
| number = 2848
| date = October 30, 2023
| title = Breaker Box
| image = breaker_box_2x.png
| imagesize = 560x776px
| noexpand = true
| titletext = Any electrician will warn you to first locate and flip the house's CAUSALITY circuit breaker before touching the CIRCUIT BREAKERS one.
}}

==Explanation==
{{incomplete|Created by a HIGH-PITCHED HUM GENERATOR THAT WAS LAST MENTIONED EXACTLY 1258 COMICS AGO - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
A {{w|distribution board}}, referred to as a "breaker box" here and also commonly referred to as a "fuse box", "breaker panel", "DB box", and many other names, is a metal box attached to a wall inside a building, usually in some maintenance area, containing several {{w|circuit breakers}} that let power through to various parts of the building. A circuit breaker is an electrical switch, usually in the form of a small lever that can be used to manually isolate the electrical connections beyond it from the incoming power supply, but that will also physically trigger open if too much power is flowing through (often due to some grounding fault), to mitigate against dangerous short-circuits that can injure/damage people and appliances, in the most serious cases hopefully preventing fires and even risk of death.

In most breaker boxes, each individual breaker is labeled to let the operator know what that specific breaker controls. A breaker will usually control something like the outlets or lights (perhaps all those in a certain room), or some large appliance which normally draws a large current all on its own.

However, in houses that have been rewired multiple times (or are poorly wired), this can quickly become overcomplicated with seemingly random connections. Randall lives in Boston where much of the housing stock is from the late 1800s or early 1900s, and he is likely to live in a house with non-ideal wiring, which may have inspired this comic.

The comic satirizes these complex wiring setups, with multiple breakers "controlling" arbitrary things, including some that – in the classic style of XKCD – may be impossible to hook a breaker up to, getting progressively more absurd to the point of disabling certain laws of physics.

===Table of the breakers labels===
{|class = "wikitable"
! Label next to breaker !! Explanation !! Note
|-
! colspan="3"|Left column of switches
|-
| Kitchen Lights || The lights in the kitchen. || rowspan="3"| Standard items that could be separate
|-
| Living room lights || The lights in the living room.
|-
| Porch lights || The lights on the porch.
|-
| Bathroom lights and one surprise mystery outlet somewhere || The lights in the bathroom, but also a random outlet.
It is not uncommon for the power supply to a 'wet room' (usually just lighting, but perhaps also relevent appliances like a double-fused 'shaver supply' and/or electric shower unit) to be wired up independently to restrict the impact of short-circuits due to unexpected water seepage or allow specific isolation during later maintence work.

Having initially reserved an output from the box for such a limited use, it is possible that another electrician – while adding wiring – chooses to wire seemingly unrelated things into the same circuit because it seems more convient/sensible to do so than to tap onto any other. This can mystify homeowners (and future installers) who aren't full informed about this aspect of the wiring history.
| Standard, but 'kludged'
|-
| North-facing appliances || colspan="2"|Difficult, but not theoretically impossible. Presumably this house has:
#a smart wiring system that knows which outlets control which appliances, and can toggle all outlets,
#all appliances with magnetic compasses that report their orientation to the smart home controler, and
#this breaker is not a simple power on/off but can selectively disable only north-facing appliances.
Alternative explanations:
* The switch may be physically wired only to outlets installed on a southern wall in the property (or ''all'' southern walls, for each room that requires them), with the presumption that everything connected to these exclusively north-facing outlets also faces directly away from the wall(s).
* It could mean the appliances on the north-facing walls of the house.

Note: "North-facing" has broad interpretation, as lax as northeast to northwest or as strict as {{w|Points of the compass#32-wind compass rose|north by east to north by west}}.

|-
| Bathtub drain light || colspan="2"|Bathtub drains typically do not have lights, but this breaker provides power to that and only that. Why it isn't already considered a "bathroom light" is unexplained (unless it's for the bit of the pipe that is ''external'' to that room).
|-
| Appliances whose names contain the letter "F" || colspan="2"|Also difficult but not theoretically impossible. Similar to "North-facing appliances," this would require a smart wiring system that can detect the official names of appliances plugged into each outlet, and the ability of this breaker switch to selectively toggle certain outlets. (Typical electrical systems do not carry data about names, for starters.)
Some common household appliances that this switch might control:
* coffee maker
* refrigerator
* freezer
* fan
* air fryer
* food processor
* waffle iron
* fabric steamer
* fireplace (electric)
|-
| Hot water heater || Usually just a heater that creates (and typically stores) hot water. But given that the next breaker controls the "Regular water heater", this breaker might actually control a water heater that pointlessly heats water that is ''already'' hot.
 This is probably a joke about the fact that the common phrase "hot water heater" is [[technically]] redundant or misleading:
* Redundant because the simpler term "water heater" is enough to describe a device that produces hot water
* Misleading because it's not the purpose of residential water heaters to heat water that is ''already'' hot).
|rowspan="2"|Two "heaters"
|-
| Regular water heater || The heater for regular water. Together with the switch above, this presumes it's for a heater for heating water that is not yet hot (usually called a "hot water heater", hence the joke).
|-
| Outlets in rooms that it's normal to eat pizza in || colspan="2"|This controls every outlet in rooms that it's normal to eat pizza in, such as the dining room and kitchen and – depending on the "normal" habits of the inhabitants – other rooms such as the bedroom, bathroom, or living room (if not already covered by the "living room lights" switch above).
|-
| High-pitched hum generator || colspan="2"|Controls a high-pitched hum generator. This is a call-back to [[1590: The Source]].
|-
| The solution to the cryptogram below: || colspan="2"|Likely a pun on "breaking" or solving a cryptogram, which is a puzzle where a sentence has been encoded using a cipher, usually simple, and the goal is to determine the cipher and recover the original sentence from the encoded one.
Another explanation is that this switch enables or disables the solution somehow, perhaps toggling its knowability or solvability.
|-
| Bugs || colspan="2"|Several interpretations are possible:
* Disable all software bugs in the house*
* Disable all insect bugs in the house – as an efficient form of pest control – perhaps using ultrasonic emitters that drive away bugs. May be a reference to [[2753: Air Handler]].
* Disable power to all covert listening devices, which would be able to be switched off if wired into the house's electrical grid.
* Disable the whole global category of bugs (insects, arachnids, and other small arthropods), in which case we'd have no more pests and we'd reduce disease likes malaria and {{w|Lyme disease}}. Food webs would also collapse, and our world would be overrun with waste.
 <nowiki>*</nowiki>Though it's unlikely that it's what Randall is referring to, computer bugs switches actually exist. It's a feature in some video game emulators to either run an unofficial patched version or to stay true to the original system, for example to allow bug-exploit speedruns of a video game.
|-
! colspan="3"|Right column of switches
|-
| A whirring fan you didn't realize was on until now || colspan="2"|The AC in a building usually creates quiet white noise from fans, which people usually do not hear until they become aware that there is a sound. Other appliances, such as refrigerators or home servers, can have similar effects.
|-
| Dishwasher || colspan="2"|The dishwasher.
|-
| Dishes || colspan="2"|Traditionally, dishes cannot be turned off, as they do not normally require electricity. "Dishes" could be the label for a dishwasher on another house's breaker box, but this one already used that label. Another, unlikely explanation is that this switch controls two or more satellite dishes.
|-
| Hallway lights || The lights in the hallway or hallways. || rowspan="3"|"Hallway" regions
|-
| Hallway outlets || The outlets in the hallway or hallways.
|-
| Hallway floors || This breaker has several potential interpretations:
#A master switch for all floors (storeys) in the building which include hallways, e.g. the guestroom areas in a hotel, whilst possibly excluding the lobby and service levels
#Outlets in the floor
#Electric underfloor heating (heated bathroom floors are a feature in some houses)
#Electrification of the floors -- not common outside of horror and heist movies.
#Disabling all floors entirely, so everything resting on the floors falls through.
|-
| Social media || colspan="2"|This breaker also has several potential interpretations of "turning off social media":
#'Digital detoxes', where someone says "I'm going to turn off my social media" and intends to deny themselves access to all their social media apps.
#A switch for a parent to turn off all social media entering the house to protect their kids and themselves, which references a type of specialized content filter available through Wi-Fi router settings, not traditionally a breaker box.
#A callback to [[908: The Cloud]]. Since most social media platforms are centralized services, it would be theoretically possible to hook up a switch to the main power supply of every server building at once, given some extremely long wires, a breaker capable of handling the abhorrently massive electric load, and agreement from every social media provider([[1439|optional]]).
#The theoretical desire by some to "turn off social media" for the world due to its harmful effects on society. As someone who lived before social media and saw its spread over two decades, Randall may be ruing the impacts of social media on civilization and channeling his desire to put the genie back in the bottle.
|-
| State law || Likely a pun on "State Law Breaker."
Taken literally, it would either disable enforcement of State Law or nullify every single one, creating a state of martial law similar to the premise of the popular movie, "The Purge". It's unclear if this refers to Randall's state of Massachusetts or State Law as a general concept.
| rowspan="2"|"Legal" items
|-
| Federal law || Likely a pun on "Federal Law Breaker," though it could also be taken literally, as above. The ramifications of nullifying every US Federal law are immense. Disabling Federal Law while keeping State Law would theoretically fulfill the goals of the "States Rights" advocates, groups of conservatives across US history aiming to return Federal power to the States.
|-
| Second law of thermodynamics || The Second Law of Thermodynamics, in simple terms, states that the total entropy (or disorder) of an isolated system can only increase over time. It's a fundamental principle that dictates the direction of energy flow and the feasibility of many processes, and provides an arrow of time.
Turning off the second law of thermodynamics would have some pros and cons.
;GOOD STUFF
*'''Perpetual Motion Machines''': Machines that can do work indefinitely without an energy source would become possible, defying our current understanding of energy conservation.
*'''Reversibility of Processes''': Many natural processes that are irreversible under current laws could be reversed. For instance, melted ice could spontaneously turn back into a solid without energy removal.
*'''Recycling Energy''': We could theoretically use the same quantum of energy over and over again, leading to ultra-efficient systems and potentially solving many of the world's energy problems.
*'''Reversing Entropy-Driven Processes''': Things like mixing cream and coffee or ink in water could spontaneously unmix.
;BAD STUFF
*'''End Life as We Know It:''' All living organisms rely on the second law for crucial processes, including metabolism and reproduction. If the second law were negated, life, at least as we understand it, might not be possible.
*'''No Heat Engines:''' Engines rely on the flow of heat from hotter to colder bodies. Without the Second Law, our cars, power plants, refrigerators, and many other devices would not function.
*'''Breakdown of Molecular Processes:''' Molecules spontaneously move from areas of higher to lower concentration due to entropy. Without this, diffusion, osmosis, and many biochemical reactions wouldn't occur as they currently do.
*'''Loss of Directionality:''' One interpretation of the Second Law provides a directionality to time (the so-called "arrow of time"). Without it, causality and our understanding of past, present, and future could be fundamentally altered.
*'''Unpredictable Outcomes:''' Turning off the Second Law could result in a universe where outcomes are not probabilistically predictable. You couldn't rely on anything happening as it "should," leading to chaos in every sense.
 This law of physics was also explored in the What If? article [https://what-if.xkcd.com/145/ Fire From Moonlight].
| rowspan="3"|"Physics" items
|-
| Friction || Friction is the resistive force that opposes the relative motion or tendency of such motion of two surfaces in contact. Turning it off has some upsides and downsides.
;UPSIDES
*'''Perpetual Motion Machines:''' Without friction, once an object starts moving, it would continue indefinitely unless acted upon by another force. This could lead to perpetual motion machines that could generate energy.
*'''Super-Efficient Transport:''' Cars, trains, and other vehicles would glide effortlessly once set into motion, leading to immense energy savings.
*'''Unique Sports:''' New sports and activities would emerge, where players glide or slide over surfaces without friction.
;DOWNSIDES
*'''Walking Would Be Impossible:''' We rely on friction between our feet and the ground to move. Without it, we would be unable to walk, run, or even stand.
*'''No Manual Dexterity:''' Holding, grabbing, or manipulating objects would be impossible. Even simple tasks like holding a glass or writing with a pen would be out of reach.
*'''Catastrophic Mechanical Failures:''' Many machines rely on friction to function. Brakes in cars, for instance, use friction to slow down and stop the vehicle. Without it, uncontrollable accidents would occur.
*'''No Sound:''' Friction between air molecules creates sound waves. Without friction, the world would be silent.
*'''Breathing Difficulties:''' Our respiratory system relies on frictional forces when the alveoli in our lungs exchange oxygen and carbon dioxide with the bloodstream.
*'''No Fire:''' Fire relies on friction for its creation, such as when striking a match. The absence of friction would mean no traditional methods of starting a fire.
*'''Collisions:''' Objects, once set in motion, would continue to move until they hit something, leading to a myriad of unpredictable and uncontrollable collisions.
 Being in a frictionless environment (and a vacuum, as physicists love...) was the subject of [[669: Experiment]].
|-
| Gravity || Gravity is a natural force that attracts two bodies toward each other, proportional to their masses and inversely proportional to the square of the distance between their centers.
Turning off gravity would have some advantages and disadvantages.
;ADVANTAGES
* '''Flight''': Without gravity, every leap could turn into a flight. We could push off surfaces and float effortlessly through the air.
* '''No Weight Restrictions''': Large structures could be built without concern for weight-bearing loads. This would drastically change engineering and architectural designs.
* '''New Sports''': Zero-gravity sports and activities could become a reality on Earth. Imagine playing basketball or soccer without gravity!
;DISADVANTAGES
* '''Loss of Atmosphere and Oceans''': Without gravity, Earth's atmosphere would dissipate into space, and water from oceans, rivers, and lakes would float away, making life as we know it impossible.
* '''Unanchored Chaos''': Everything not fixed to the ground, including people, animals, vehicles, and foundationless structures, could become airborne, causing massive destruction and chaos.
* '''Disruption of Celestial Order''': Earth would no longer orbit the Sun, the Moon would drift away rather quickly, and the structural integrity of the universe, including galaxies and solar systems, would be jeopardized.
* '''Everything Exploding''': Most celestial bodies, ranging from the moon to supermassive black holes, would explode from internal pressure and centripetal forces no longer fighting against gravity throwing everything into space.
* '''Aggregation Absence''': Stars, galaxies, and basically anything in space requires gravity to form. Without gravity, no stars, planets, or meteors would form ever again.

Of course, if this switch is turned off, it may simply mean that objects within the house itself are no longer subject to gravity. This would be '''''far''''' less cataclysmic, and as a bonus, this would make it much, much easier to move around the house, get to higher areas, and move objects, but could prove to cause some problems once the breaker is turned back on, especially for the floor.
|-
| Circuit breakers || colspan="2"|If this was turned off, it would presumably turn off the functionality of the circuit breaker itself, if it was wired to include itself. Practically, it would turn of all power in the house since no breaker is supplied or supplying power any more. (Most houses have a main circuit breaker that provides this functionality.) However, because this specifically is a switch for literally circuit breakers and it itself is a circuit breaker, given the other surreal things this breaker box controls, turning it off will possibly make it impossible to turn it on ever again as the switch will no longer function once switched off.

(It might be a perfectly valid label if it refers to multiple subsidiary 'boxes', cascaded off this particular one, each containing one or more additional breakers for convenience or safety. e.g. units dedicated to a shed, garage or workshop room which save the need to traipse all the way to this box's utility cupboard location in the event of an otherwise easily resolved power issue.)

Moreover, if this circuit breaker disables all circuit breakers everywhere, it would result in global infrastructure collapse, halting essential services, including transportation, healthcare, and communication, and leading to widespread chaos.
|-
! colspan="3"|Title text
|-
| colspan="3"|The title text is about causality, arguably another level above the "Physics" switches, and how to use this (unseen) breaker along with the either the last shown switch or another unseen 'meta level' switch that (de)powers the illustrated box.

Turning off the circuit breaker using the CIRCUIT BREAKER switch may lead to a loop, if the disabled breaker can no longer disable itself, leading to it turning back on, etc. Alternatively, turning off the CIRCUIT BREAKER switch might be a one-way street.

Turning the CAUSALITY switch from OFF back to ON might be unlikely to do anything if the circuit breakers upstream of it have been fully deactivated. The separation of cause and effect would ostensibly take precedence over the current switch setting. Turning off CAUSALITY first would prevent either the loop or the permanent disabling of circuit breakers, but would also have many other side effects, including letting switches potentially serve power even if there is no power being served ''to them'', or even spontaneously switching (on or off) without any intervention or reason.

Whether or not turning off causality would actually turn off causality if causality is turned off is an exercise for the reader.
|}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[An open breaker box is shown. There are 26 labelled breakers, all of which are on, paired back to back in thirteen rows as a label, switch, switch and label.]
:Kitchen lights / A whirring fan you didn't realize was on until now
:Living room lights / Dishwasher
:Porch lights / Dishes
:Bathroom lights and one surprise mystery outlet somewhere / Hallway lights
:North-facing appliances / Hallway outlets
:Bathtub drain light / Hallway floors
:Appliances whose names contain the letter "F" / Social media
:Hot water heater / State law
:Regular water heater / Federal law
:Outlets in rooms that it's normal to eat pizza in / Second law of thermodynamics
:High-pitched hum generator / Friction
:The solution to the cryptogram below: [Additional squiggled words that are too small/indistinct to read.] / Gravity
:Bugs / Circuit breakers

{{comic discussion}}

Talk:2848: Breaker Box

2023-10-31T10:11:05Z

141.101.99.166: Separated, but needed additional .sig

added transcript and got to change the name of the thing that created the explanation incomplete tag WOHOOOOoO [[User:Certified_nqh|Me]][[[285: Wikipedian Protester|''citation needed'']]][[Category:Pages using the "citation needed" template]] 02:25, 31 October 2023 (UTC)
: can't help but notice the [[1590]] reference [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 02:43, 31 October 2023 (UTC)
Added explanation! Simple, but it'll do. How do I sign? [[Special:Contributions/172.69.34.159|172.69.34.159]] 03:42, 31 October 2023 (UTC)
: four tildes (<code><nowiki>~~~~</nowiki></code>) [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 03:08, 31 October 2023 (UTC)
:: Thanks. I thought that I had tried it earlier and it hadn't worked, but I guess I was wrong. [[Special:Contributions/172.69.34.160|172.69.34.160]] 03:46, 31 October 2023 (UTC)

Just added headers, but not good enough with this stuff to add descriptions. go nuts [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 02:52, 31 October 2023 (UTC)

Got a good laugh out of this one. Does anyone have a guess as to whether the "bugs" at the bottom of the second column refers to computer bugs or insects? Also, some self-referential humor going on at the end there. I guess the breaker box which contains all breakers would indeed contain itself. [[User:Jrfarah|Jrfarah]] ([[User talk:Jrfarah|talk]]) 04:31, 31 October 2023 (UTC)
: I thought it was some sort of reference to [[2753]] [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 04:58, 31 October 2023 (UTC)

So... discussion about "Hot Water Heater" vs. "Regular Water Heater"... I was assuming this was a joke regarding the redundancy of the term "Hot Water Heater" since "Water Heater" is already making the water hot, so why would you need to heat water that's already hot? Similar to RAS Syndrome, I thought Randall was making fun of that, but the explanation has a different idea... which... kind of makes sense? But... I've never seen anything like what is being described. [[User:AdmiralMemo|Admiral Memo]] ([[User talk:AdmiralMemo|talk]]) 05:22, 31 October 2023 (UTC)

Regarding the "one surprise mystery outlet", I don't think it's necessary to assume it was wired that way by mistake. When extending the wiring in an existing house, it's not always easy to wire up an extra breaker, or use the most logically labelled one, and there may not be a compelling safety reason to do so. For instance, in my parents house, the original sockets are all wired from the floor, and when an extra one was needed for a boiler control, it was easier to run a conduit ''down'' from the floor above; so that particular socket is on the [https://en.wikipedia.org/wiki/Ring_circuit ring] marked "Upstairs Sockets" on the consumer unit. - [[User:IMSoP|IMSoP]] ([[User talk:IMSoP|talk]]) 09:18, 31 October 2023 (UTC)

I read the "state/federal law" switches as ''required'' by said laws. i.e. respective building codes require a "foo switch" always to be installed, whether or not a foo is required, reasonable or even practicable. The switches may be left unlinked to anything that is serviced, or run to the household outlet/power-switch with the label plastered over it saying "don't use for anything but the quarter-inch hoojamaflip grinder" (or whatever it is, in the same sort of manner as "Refrigerator, do ''not'' unplug/turn off!" in a communal kitchen.... [[Special:Contributions/141.101.99.166|141.101.99.166]] 10:09, 31 October 2023 (UTC)

...in a separate comment, I have a fuse/switch labelled "Do not turn on!" in my house. It was turned on when I moved in, and (barring actually any reason to mess with anything/’get a man in' for any other purpose) I've ''left'' it on. Ditto, for these last six or seven years I've remained ignorant of the purpose of various wall switches (floor-height, one in living room, one at top of stairs, another in a bedroom) that are unlabelled and off (though I ''have'' switched them on... no obvious difference to lighting, alarm system, any other system I can imagine they're wired up into and left it pending some future time when I actually have to do something like strip plaster back and discover which (if any?) run of cable leads from/to them. [[Special:Contributions/141.101.99.166|141.101.99.166]] 10:11, 31 October 2023 (UTC)

Talk:2848: Breaker Box

2023-10-31T10:09:29Z

141.101.99.166:

1402: Harpoons

2014-08-03T09:51:22Z

141.101.99.166: And once again I have to come in and change this word. The correct word is NOT "sentient", no matter what various sci-fi shows have taught you, they've misused the word. Also, "thusly" -> "thus".

{{comic
| number = 1402
| date = August 1, 2014
| title = Harpoons
| image = harpoons.png
| titletext = To motivate it to fire its harpoons hard enough, Rosetta's Philae lander has been programmed to believe it is trying to kill the comet.
}}

==Explanation==
{{incomplete|Needs more work, especially the top section, too much speculation in the explanation which should belong in the comment section}}

Continuing a recurring theme (as seen in comics [[111]] and [[231]]), two unrelated but interesting objects have been juxtaposed graphically with humorous results. In this case, it's the fact that old-timey, man-made {{w|harpoon}}s (a cool word) have been placed among the equipment for a space flight (a cool concept). According to Randall, this has happened twice.

The latter peak on this graph refers to the {{w|Rosetta (spacecraft)|Rosetta}} unmanned spacecraft. As part of its mission, it's carrying a lander (called {{w|Philae (spacecraft)|Philae}}), which has two tethers to anchor itself to the comet {{w|67P/Churyumov–Gerasimenko}}. Rosetta was launched in March 2004 (as shown in the graph) and is scheduled to encounter the comet in August 2014, making this a timely comic.

The first peak is probably a joke. Officially, {{w|Apollo 12}} carried neither harpoons nor rum. However, as a former NASA contractor, Randall may know more about space shenanigans than the general public, and may be implying (perhaps jokingly) that a bottle of the [http://www.harpoon-rum.eu/1.html Harpoon] brand of {{w|Rum#Regional variations|Jamaican rum}} made it aboard in a "[http://tvtropes.org/pmwiki/pmwiki.php/Main/NoodleIncident noodle incident]".

The title text compares the Philae lander's method of deploying its tethers to whaling, in which sailors would throw harpoons at a whale with the intent of killing the whale. It was important to throw hard so the harpoon would stick in the whale so it could not get away and would tow the whaling boat until it got tired and could be killed. Thus the title text implies that the spacecraft is sapient and needs a motivation to fire the harpoons hard enough to stay anchored to the comet; to this end it has been programmed to believe that its mission is to kill the comet.

==Transcript==
:'''Number of harpoons in space'''
:by year
:[A chart with a red graph is drawn below]
:[The y-axis]
:0 1 2 3
:[The x-axis]
:1950 1960 1970 1980 1990 2000 2010 2020
:[The graph is at zero until a sharp peak to 1 in 1970. The peak is labeled]
:Apollo 12 rum incident
:[The graph then stays at 0 until 2004. Then it rises to 2 and stays there until today, continuing as a dotted line after 2014. The rise is labeled]
:Rosetta comet mission launched carrying lander with harpoon tethers

{{comic discussion}}
[[Category:Charts]]
[[Category:Comics with color]]

1402: Harpoons

2014-08-02T10:35:43Z

141.101.99.166: Don't think "sentient" was being used correctly here. Changed to "sapient". Curse you, Star Trek: The Next Generation!

{{comic
| number = 1402
| date = August 1, 2014
| title = Harpoons
| image = harpoons.png
| titletext = To motivate it to fire its harpoons hard enough, Rosetta's Philae lander has been programmed to believe it is trying to kill the comet.
}}

==Explanation==
{{incomplete|Needs more work, especially the top section.}}
Continuing a recurring theme (as seen in comics [[111: Firefox and Witchcraft - The Connection?|111]], [[231: Cat Proximity|231]], and [[323: Ballmer Peak|323]]), two unrelated but interesting objects have been juxtaposed graphically with humorous results. In this case, it's the fact that old-timey, man-made {{w|harpoon}}s (a cool word) have been placed among the equipment for a space flight (a cool concept). According to Randall, this has happened twice.

The latter peak on this graph refers to the {{w|Rosetta (spacecraft)|Rosetta}} unmanned spacecraft. As part of its mission, it's carrying a lander (called {{w|Philae (spacecraft)|Philae}}), which has two tethers to anchor itself to the comet {{w|67P/Churyumov–Gerasimenko}}. Rosetta was launched in March 2004 (as shown in the graph) and is scheduled to encounter the comet in August 2014, making this a timely comic.

The first peak is probably a joke. Officially, {{w|Apollo 12}} carried neither harpoons nor rum. However, as a former NASA contractor, Randall may know more about space shenanigans than the general public, and may be implying (perhaps jokingly) that a bottle of the [http://www.harpoon-rum.eu/1.html Harpoon] brand of {{w|Rum#Regional variations|Jamaican rum}} made it aboard.

The title text compares the Philae lander's method of deploying its tethers to whaling, in which sailors would throw harpoons at a whale with the intent of killing the whale. It was important to throw hard so the harpoon would stick in the whale so it could not get away and would tow the whaling boat until it got tired and could be killed.

It is implied that the spacecraft is sapient and needs a motivation to fire the harpoons hard enough to stay anchored to the comet. It has thus been programmed to believe that its mission is to kill the comet. This is a joke, as Rosetta is of course not sapient.

==Transcript==
:'''Number of harpoons in space'''
:by year
:[A chart with a red graph is drawn below]
:[The y-axis]
:0 1 2 3
:[The x-axis]
:1950 1960 1970 1980 1990 2000 2010 2020
:[The graph is at zero until a sharp peak to 1 in 1970. The peak is labeled]
:Apollo 12 rum incident
:[The graph then stays at 0 until 2004. Then it rises to 2 and stays there until today, continuing as a dotted line after 2014. The rise is labeled]
:Rosetta comet mission launched carrying lander with harpoon tethers

{{comic discussion}}
[[Category:Charts]]

1392: Dominant Players

2014-07-09T07:33:06Z

141.101.99.166: fix

{{comic
| number = 1392
| date = July 9, 2014
| title = Dominant Players
| image = dominant_players.png
| titletext = When Vera Menchik entered a 1929 tournament, a male competitor mocked her by suggesting that a special 'Vera Menchik Club' would be created for any player who lost to her. When the tournament began, he promptly became the first member of said club, and over the years it accumulated a large and illustrious roster.
}}

A large version of this comic is avaliable [http://xkcd.com/1392/large here].

==Explanation==
The comic shows the rise and fall of players' strengths in two games, {{w|basketball}} and {{w|chess}}. For chess, there is an overall chart, and a women's chart.

For basketball, it uses a player efficiency rating.

For chess, it uses the {{w|Elo rating}}. It explains that since Elo is relatively new, the rating is extrapolated backwards in time.

There are several references. Some are intended to provide context (such as "Loses to Deep Blue"), while others are tangents or jokes, including:

* Jerry West - The Guy in The NBA logo
* Kareem Abdul Jabbar - {{w|Airplane (film)|Airplane}} (a comedy film he had a role in)
* Michael Jordan - {{w|Space Jam}} (a comedy starring Jordan)
* Lebron James - The Decision (a reference to a heavily hyped decision as to which team he would play for)
* Kira Zvorykina - It says "Continued playing in tournaments into the 20th century". Wikipedia says, "she still plays chess in rated tournaments", though it does not give the last rated tournament she played in. The 20th century is the 1900's, so this is either a joke or a mistake.

The starbursts are references to a player appearing or disappearing in unusual circumstances:

* Alexander Alekhine- Died under disputed circumstances in Portugal
* Bobby Fischer - Text says "Vanished...". He did not actually vanish, but he did stop playing competitively for about 20 years starting in 1972. This is also probably a reference to the film {{w|Searching for Bobby Fischer}}, which is not actually about Fischer, but about a player who partly models his career on Fischer's. The name "Searching for Bobby Fischer" may lead people to believe Fischer literally vanished, but that is not the case.
* Bobby Fischer "Reappeared then vanished again" is another reference to Fischer, who resumed playing competitively in 1992 for a brief time. "He had problems" is a simplistic description of issues and controversies in Fischer's later life, including an arrest warrant (because he violated a U.S. embargo against Yugoslavia), unpaid taxes, controversy about his statements (including anti-semitism). The U.S. eventually revoked his passport, and he was jailed for eight months in Japan. He then received Icelandic citizenship, and lived out the rest of his life there.
* Vera Menchik - She died in a {{w|V-1 flying bomb|V-1 bombing}} by the Germans in World War II. The comic uses the text, "Died in a missile attack on London". This is probably anachronistic on purpose to provoke curiosity, as contemporary reports would generally have called it a bomb.

{{incomplete|Created by a BOT - Please change this comment when editing this page.}}

==Transcript==
{{incomplete transcript}}
[[Category:Large drawings]]

{{comic discussion}}

1392: Dominant Players

2014-07-09T07:19:55Z

141.101.99.166: added to large drawings

{{comic
| number = 1392
| date = July 9, 2014
| title = Dominant Players
| image = dominant_players.png
| titletext = When Vera Menchik entered a 1929 tournament, a male competitor mocked her by suggesting that a special 'Vera Menchik Club' would be created for any player who lost to her. When the tournament began, he promptly became the first member of said club, and over the years it accumulated a large and illustrious roster.
}}

A large version of this comic is avaliable [http://xkcd.com/1392/large |here].

==Explanation==
The comic shows the rise and fall of players' strengths in two games, {{w|basketball}} and {{w|chess}}. For chess, there is an overall chart, and a women's chart.

For basketball, it uses a player efficiency rating.

For chess, it uses the {{w|Elo rating}}. It explains that since Elo is relatively new, the rating is extrapolated backwards in time.

There are several references. Some are intended to provide context (such as "Loses to Deep Blue"), while others are tangents or jokes, including:

* Jerry West - The Guy in The NBA logo
* Kareem Abdul Jabbar - {{w|Airplane (film)|Airplane}} (a comedy film he had a role in)
* Michael Jordan - {{w|Space Jam}} (a comedy starring Jordan)
* Lebron James - The Decision (a reference to a heavily hyped decision as to which team he would play for)
* Kira Zvorykina - It says "Continued playing in tournaments into the 20th century". Wikipedia says, "she still plays chess in rated tournaments", though it does not give the last rated tournament she played in. The 20th century is the 1900's, so this is either a joke or a mistake.

The starbursts are references to a player appearing or disppearing in unusual circumstances:

* Alexander Alekheine - Died under disputed circumstances in Portugal
* Bobby Fischer - Text says "Vanished...". He did not actually vanish, but he did stop playing competitively for about 20 years starting in 1972. This is also probably a reference to the film {{w|Searching for Bobby Fischer}}, which is not actually about Fischer, but about a player who partly models his career on Fischer's. The name "Searching for Bobby Fischer" may lead people to believe Fischer literally vanished, but that is not the case.
* Bobby Fischer "Reappeared then vanished again" is another reference to Fischer, who resumed playing competetively in 1992 for a brief time. "He had problems" is a simplistic description of issues and controversies in Fischer's later life, including an arrest warrant (because he violated a U.S. embargo against Yugoslavia), unpaid taxes, controversy about his statements (includng alleged anti-semitism). The U.S. eventually revoked his passport, and he was jailed for eight months in Japan. He then received Icelandic citizenship, and lived out the rest of his life there.
* Vera Menchik - She died in a {{w|V-1 flying bomb|V-1 bombing}} by the Germans in World War II. The comic uses the text, "Died in a missile attack on London". This is probably anachronistic on purpose to provoke curiousity, as contemporary reports would generally have called it a bomb.

{{incomplete|Created by a BOT - Please change this comment when editing this page.}}

==Transcript==
{{incomplete transcript}}
[[Category:Large drawings]]

{{comic discussion}}

Talk:1234: Douglas Engelbart (1925-2013)

2014-07-07T17:30:44Z

141.101.99.166:

The song he claims to have written is, of course, Leonard Cohen's "Hallelujah". But why? /[[User:Skagedal|Skagedal]] ([[User talk:Skagedal|talk]]) 08:22, 5 July 2013 (UTC)
: I guess for the same reason he claims to have thought up YOLO and cat picture memes - he's claiming credit for many many future developments - that's the joke. Either that or the comic's claiming Douglas was a time traveller and was single handedly responsible for every invention ever! Let's face it though, much of our modern day tech wouldn't have happened without his work. I can't believe I never heard of this guy before. [[User:Hippyjim|Hippyjim]] ([[User talk:Hippyjim|talk]]) 09:00, 5 July 2013 (UTC)
::As has since been added, it's a reference to the obscure-but-not-secret chord keyboard. Someone should really go through each clause and either give a link to that part of the demo, or the real history. {{unsigned ip|173.14.129.9}}
: I'd guess it's because the mournful tone of the song makes it appropriate for a memorial to someone passing away.
:[[User:Wwoods|Wwoods]] ([[User talk:Wwoods|talk]]) 18:06, 5 July 2013 (UTC)

Looks like the Stanford site has been given the xkcd hug. Does anybody have a mirror? [[User:Spontaneous|Spontaneous]] ([[User talk:Spontaneous|talk]]) 15:33, 5 July 2013 (UTC)
:Stanford is overloaded, not only because this comic. The link is also at his wiki page.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:44, 5 July 2013 (UTC)

Is it just me or is there a certain amount of deliberate irony here. Englebart was working at " A Research Center for Augmenting Human Intellect" and where do we end up? Lolcats....--[[User:NHSavage|NHSavage]] ([[User talk:NHSavage|talk]]) 19:12, 6 July 2013 (UTC)

The "inventions in detail" section is badly written... Also, it feels weird to use Engelbart's first name to refer to him. Excessively familiar, perhaps. --[[Special:Contributions/24.186.79.218|24.186.79.218]] 01:13, 7 July 2013 (UTC)
:So do it better, you are welcome here to help. And at the Stanford site he is just called "Doug", in America people are mostly using the first name.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 11:30, 7 July 2013 (UTC)
::I took a stab at cleaning up the grammar a bit, and I agree that in this context, refering to him by his last name is more appropriate. --[[Special:Contributions/67.71.137.146|67.71.137.146]] 12:29, 10 July 2013 (UTC)
:::Thanks for your help on grammar, I'm not native English. My main source was the Stanford site mentioned at the trivia, and he is just called "Doug" there. I think even this nickname should be appropriate.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:03, 10 July 2013 (UTC)

Hi, is there any truth to the "masking codecs" claim in the comic and in the explanation of the inventions here? I watched the whole presentation on Youtube, but I can't remember that anything about audio was mentioned. Has this been presented some other time? Or is this again a joke, like the YOLO-cat claim? --[[Special:Contributions/84.164.96.3|84.164.96.3]] 12:43, 22 July 2013 (UTC)

The alt-text, talking about Englebart looking forward to computers tracking what you're doing and who you are, is clearly a jab at the NSA and advertising tracking on the web, and probably at social networking like Facebook and Twitter. 'Direct messages', of course, is exactly the term Twitter uses. I'm unsure if this is the term Engelbart used, though: does anyone have a transcript? [[Special:Contributions/141.101.99.166|141.101.99.166]] 17:30, 7 July 2014 (UTC)

explain xkcd:Sandbox

2014-06-15T17:25:30Z

141.101.99.166:

__NOINDEX__
Make changes, try things out, or just have fun with the wiki here! Just leave everything above the line alone, please.
------
[[stupidddddddddd]]
[[stupid]]
[[xkcd]]
[[explain xkcd]]
<nowiki>-</nowiki> '''''[[User:ausr|Ausr]],''''' the coolest guy in town.
{{#expr:1220+({{CURRENTWEEK}}-23)*3+{{#switch:{{CURRENTDOW}}|1|2=0|3|4=1|5|6|0=2}}}}
15:39, 17 January 2014 (UTC)
{{Comicbox sandbox
| number = -1
| date = 0000.1
| title = Sandbox
| image = 0000.1
| titletext = 0000.1
}}

<nowiki>{{Incomplete|Not incomplete, but it's hard to remember the syntax for incomplete tags}}</nowiki>
{{#expr:{{CURRENTYEAR}}-2000}}

https://www.google.com/images/srpr/logo11w.png

[[{{PAGENAME}} | Nex

explain xkcd:Sandbox

2014-06-15T17:23:09Z

141.101.99.166:

__NOINDEX__
Make changes, try things out, or just have fun with the wiki here! Just leave everything above the line alone, please.
------
[[stupidddddddddd]]
[[stupid]]
[[xkcd]]
[[explain xkcd]]
{{#expr:1220+({{CURRENTWEEK}}-23)*3+{{#switch:{{CURRENTDOW}}|1|2=0|3|4=1|5|6|0=2}}}}
15:39, 17 January 2014 (UTC)
{{Comicbox sandbox
| number = -1
| date = 0000.1
| title = Sandbox
| image = 0000.1
| titletext = 0000.1
}}

<nowiki>{{Incomplete|Not incomplete, but it's hard to remember the syntax for incomplete tags}}</nowiki>
{{#expr:{{CURRENTYEAR}}-2000}}

https://www.google.com/images/srpr/logo11w.png

[[{{PAGENAME}} | Next> ]]

<nowiki>-</nowiki> '''''[[User:ausr|Ausr]],''''' the coolest guy in town. 16:46, 15 June 2014 (UTC)

explain xkcd:Sandbox

2014-06-15T17:21:19Z

141.101.99.166:

__NOINDEX__
Make changes, try things out, or just have fun with the wiki here! Just leave everything above the line alone, please.
------
[[stupidddddddddd]]
[[stupid]]
[[xkcd]]
[[explain xkcd]]
{{#expr:1220+({{CURRENTWEEK}}-23)*3+{{#switch:{{CURRENTDOW}}|1|2=0|3|4=1|5|6|0=2}}}}
15:39, 17 January 2014 (UTC)
{{Comicbox sandbox
| number = -1
| date = 0000.1
| title = Sandbox
| image = 0000.1
| titletext = 0000.1
}}

<nowiki>{{Incomplete|Not incomplete, but it's hard to remember the syntax for incomplete tags}}</nowiki>
{{#expr:{{CURRENTYEAR}}-2000}}

https://www.google.com/images/srpr/logo11w.png

[[{{PAGENAME}} | Next> ]]
<nowiki>-</nowiki> '''''[[User:ausr|Ausr]],''''' the coolest guy in town. 16:46, 15 June 2014 (UTC)