explain xkcd - User contributions [en]

Talk:2922: Pub Trivia

2024-04-19T22:23:29Z

162.158.62.49:

I expect that the BTS question is a reference to the traditional Korean system of counting a person's age in units of Sal which started at 1 and incremented on the first day of the year. Since this system was abandoned on official documents in 2023, but is still in use in some contexts, the question of whether every member of BTS had a "birthday" on the first day of the year is ambiguous. [[User:Philhower|Philhower]] ([[User talk:Philhower|talk]]) 14:13, 19 April 2024 (UTC)

question 5, planets exist outside the solar system, adding to the ambiguity. [[User:Philhower|Philhower]] ([[User talk:Philhower|talk]]) 14:15, 19 April 2024 (UTC)
:One of the requirements in the definition of a planet is that it orbits the Sun, so no there are no planets outside the Solar system. [[User:Tharkon|Tharkon]] ([[User talk:Tharkon|talk]]) 17:50, 19 April 2024 (UTC)

::{{w|NASA}} disagrees. [https://exoplanetarchive.ipac.caltech.edu/ Exoplanet Archive] shows 5612 confirmed planets. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 20:55, 19 April 2024 (UTC)
::: The IAU is the body that defines such things - and they do say that planets have to orbit the Sun...things that orbit other stars are properly called "exo-planets". But still - do we include dwarf planets? Rogue planets? It's definitely a crazy-vague question. [[Special:Contributions/172.70.211.219|172.70.211.219]] 21:05, 19 April 2024 (UTC)

: I think the correct answer is 0: before the solar system formed there were no planets. So, originally, there would have been none. If exo-planets count, going back to the beginning of time gives the same answer: when the universe came into existence during the big bang there were no stars, let alone planets orbiting them. Even religion agrees: in the beginning God created the earth and the heavens, but the sun came later, so technically earth was not a planet since it didn't orbit anything.--[[Special:Contributions/162.158.62.49|162.158.62.49]] 22:23, 19 April 2024 (UTC)

As for question 9, please see the note about the history of Austrailia's capitals at: [[https://en.wikipedia.org/wiki/List_of_former_national_capitals#Oceania]]. and the page regarding countries with multiple capitals [[https://en.wikipedia.org/wiki/List_of_countries_with_multiple_capitals]] [[User:Philhower|Philhower]] ([[User talk:Philhower|talk]]) 14:24, 19 April 2024 (UTC)

About the alt text, London is certainly in Europe. The question itself is malformed because "Europe (or 'the EU')" is not self-consistent: there is a lot of European countries that are not part of the EU. [[User:RedGolpe|RedGolpe]] ([[User talk:RedGolpe|talk]]) 14:32, 19 April 2024 (UTC)
:The "Greater London" answer is also tricksy, as the "ceremonial county" of GL {{w|London boroughs|may not include}} the additional area of the City Of London (though it does include the City Of Westminster, which is sometimes the trick answer to certain trick questions that a quizmaster might attempt to pull). The ''administrative'' Greater London is the ceremonial one ''plus'' CoL, however... [[Special:Contributions/172.70.162.19|172.70.162.19]] 15:04, 19 April 2024 (UTC)
::I would argue London is not in Europe because there is no clear definition for Europe as a geographic area, it really doesn't have an eastern border that is not arbitrary, so the only clearly defined thing Europe can refer to is the EU. [[User:Tharkon|Tharkon]] ([[User talk:Tharkon|talk]]) 17:50, 19 April 2024 (UTC)
:::London, France is both in Europe and the EU https://en.wikipedia.org/wiki/London,_France [[Special:Contributions/172.70.163.49|172.70.163.49]] 18:00, 19 April 2024 (UTC)
:::While the eastern border of Europe is not clearly defined I am not aware that there is any definition of (geographic) Europe that excludes the islands (and subsequently London) --[[Special:Contributions/162.158.202.135|162.158.202.135]] 21:24, 19 April 2024 (UTC)

The [https://en.wikipedia.org/wiki/Benxi Benxi Lake] is actually considered to be the smallest lake in the world. [[Special:Contributions/172.70.135.205|172.70.135.205]]
:{{cn}}[[Special:Contributions/172.70.86.176|172.70.86.176]] 14:40, 19 April 2024 (UTC)

I never realized how challenging it is to edit pages when they've just been posted. Makes me long for something like Google docs.[[Special:Contributions/172.68.3.43|172.68.3.43]] 14:39, 19 April 2024 (UTC)

People, who are born on 29th February don't have a birthday in years which are not leap years. However, 2024, when this comic was published is a leap year. --[[Special:Contributions/162.158.95.9|162.158.95.9]] 14:40, 19 April 2024 (UTC)

"5. How many planets were there originally?" This could also refer even back to the start of the universe, when there were (likely) just 0 planets. --[[Special:Contributions/162.158.86.101|162.158.86.101]] 14:43, 19 April 2024 (UTC)

I anticiated a lot of Edit Conflicts, but not actually quite so many as to not to be able to resolve my edits with everyone else's. This is the bare-bones that I was putting in (until finding multiple attempts tried to be added consecutively...
{{cot}}
{| class="wikitable"
|-
! Question !! Problem !! Possible answer(s)
|-
| Which member of BTS has a birthday this year?
| Every living person has a birthday this year (being a leap-year, this includes those born on 29/Feb).
|
|-
| How many sides does a platonic solid have?
| There are five (or [[2781: The Six Platonic Solids|six]]) platonic solids, each with a different number of sides.
| 4, 6, 8, 12 or 20
|-
| What is the smallest lake in the world?
| The distinction between a small lake and a pond, pool or puddle (for example) is difficult to define.
|
|-
| Which Steven Spielberg movie features more shark attacks? Jaws (1875) or Lincoln (2012)
| Not a problem, as Lincoln has very few shark attacks.{{Citation needed}} The problem is that barely anyone will ''not'' be able to correctly answer this.
|
|-
| How many planets were there originally?
| Contextually vague. At what time and within what volume of space, and what is the scope of 'planet' defined here?
|
|-
| What NFL player has scored the most points outside of a game?
| Outside of (NFL) games, individuals may accumulate points in any number of ways (e.g. Scrabble)
|
|-
| The Wright brothers built the first airplane. Who built the last one?
| Until no further planes are built, individuals/teams/companies continue to build (to completion) ever more examples, changing the answer possibly moment to moment.
|
|-
| Is every even number greater than 2 the sum of two primes?
| This is a {{w|Goldbach's conjecture|currently unanswered question}}.
|
|-
| Not counting Canberra, what city is the capital of Australia?
| Canberra is ''the'' capital of Australia, a fairly well known 'obscure' fact. Each Australian territory also has their own state capital, so there is not one other ''single'' example.
|
|-
| Who played the drums?
| Lack of context. With which group? For which song? For which (re-)recording? At which event?
|
|-
| Where is London located? (a) The British Isles (b) Great Britain and Northern Ireland (c) The UK (d) Europe (or 'the EU') (e) Greater London
| Almost all of these are correct (though London is geographically in Europe but no longer in the EU).
|}

This is apparently deliberate (at least on behalf of the organisers), perhaps to upset or otherwise impede groups of overconfident quizzers who would otherwise dominate any genuinely good quiz.
{{cob}}
...make use of it however you wish, anybody who has the time not to keep chasing all the simultaneous edits. (The above is a bit behind 'perfection', and lacks many of the integrations, wikilinks and adjustments I had made. I backspaced out of the edit I had finally reached, before remembering to take a full copy into my paste-buffer!) [[Special:Contributions/172.70.90.115|172.70.90.115]] 14:53, 19 April 2024 (UTC)

I thought the answer to #2 could be 1, because as 3D solids they only have one surface. I would guess the player with the most points outside of a game is the one who's played idlers (like Cookie Clicker) the longest — though I suppose those could be considered "inside of a game" as well. Also, I played the drums. [[Special:Contributions/172.70.254.143|172.70.254.143]] 15:33, 19 April 2024 (UTC)
:The answer to #2 is '2 - the in-side and the out-side'.[[Special:Contributions/172.69.43.242|172.69.43.242]] 15:46, 19 April 2024 (UTC)

Considering the platonic solids explanation lists all the correct answers, could someone include a list of all the members of BTS and their respective birthdays? Bing copilot suggests the following:

1. **Jin (Kim Seok-jin)**:
- Birthday: **December 4, 1992**

2. **Suga (Min Yoon-gi)**:
- Birthday: **March 9, 1993**

3. **J-Hope (Jung Hoseok)**:
- Birthday: **February 18, 1994**

4. **RM (Kim Nam-joon)**:
- Birthday: **September 12, 1994**

5. **Jimin (Park Ji-min)**:
- Birthday: **October 13, 1995**

6. **V (Kim Tae-Hyung)**:
- V's birthday is **December 30**, but the year is not mentioned in the provided information.

7. **Jungkook (Jeon Jungkook)**:
- Jungkook's birthday is **September 1**, but the year is not mentioned in the provided information.
[[Special:Contributions/172.70.162.19|172.70.162.19]] 15:48, 19 April 2024 (UTC)

: I'm not opposed to adding BTS birthdays, but I think it should be done by someone more knowledgeable about the band than me. Birthdays can be a surprisingly nuanced subject.[[User:Comatoran|Comatoran]] ([[User talk:Comatoran|talk]]) 15:59, 19 April 2024 (UTC)
:Wikipedia says {{w|V_(singer)|'95}} and {{w|Jungkook|'97}} respectively[[Special:Contributions/172.70.162.37|172.70.162.37]] 16:04, 19 April 2024 (UTC)

London is both a City (London) and a City within a City (The City of London) and an Area (Greater London)
There are also many more places named London than the one that is the Capital of the UK .. Serbia, France, Canada (Which is larger and the one in the UK), 10 in the USA, and one on Kiribati 17:56, 19 April 2024 (UTC)

2132: Percentage Styles

2019-07-03T20:10:01Z

162.158.62.49: /* Explanation */ Added a table; some one with a better eye for graphs will have to put in the percentages.

{{comic
| number = 2132
| date = April 3, 2019
| title = Percentage Styles
| image = percentage_styles.png
| titletext = In a tribute to classical Latin, I started pronouncing it 'per-kent.' Eventually my friends had to resort to spritzing me with a water bottle like a cat to train me out of it.
}}

==Explanation==
{{incomplete|Created by a Classicist and a Mathematician. The table based on the graph needs to be edited, giving a percentage approval rating to the different styles of writing. This may pick up an item at 65% which would be neat. Do NOT delete this tag too soon.}}

On March 29, 2019, The {{w|AP Stylebook}} changed a long-standing rule that forbade press writers from using the percent sign (%) when writing percentages. This had long been a controversial rule, leading to much debate over the preferable way to write percentages, before the Associated Press finally conceded the point.

The comic lists the best to worst ways in which you can write out phrases that are phonetically the same as "65%". They go from the common "65%" and "65 percent" to "65 per cent," which is not common in Randall's area and time, to the eccentric "sixty-five%" and "65 per¢" (using the cent currency symbol) which are not used in normal writing and would stand out like a sore thumb when read. The middle option, "65 per cent", was common in older literature, along with "65 per cent.", using "cent." as an abbreviation for "centum", which is Latin for "hundred". ("per" in Latin translates to "through", "for", and several other English prepositions.) The entire string would translate to "65 for every hundred." "Per cent" is more widely used in British English than in American English today.

A small gap between the ends of the bar and the best and worst options may suggest the existence of even better and worse options not listed in this comic, such as "65/¢".

Other abbreviations not mentioned in the comic include "pct.", "pct" or "pc". See {{w|Percentage}}.

The title text references the ambiguity of {{w|hard and soft C}} in English. In Classical Latin, "C" is always pronounced like "K". However, in English, most "C"s before E, I and Y (including "percent") are soft, and pronounced like "S". In academia, [http://www.covingtoninnovations.com/mc/latinpro.pdf Latin students are taught the Classical Latin pronunciations of words], rather than the pronunciation used by the Catholic church. Some students of Latin may adopt the Latin pronunciation of English words derived from Latin. Such people may tend more to pronounce, even when not the correct choice, "celtic" like "keltic" (this ''is'' the correct choice, except for the {{w|Boston Celtics|basketball team}}), "caesar" like "kaiser", or "cent" like "kent" (although since this involves obviously saying something others aren't going to understand unless they took the same classes, it might as well be "per kentum").

People sometimes train a cat out of a bad behavior, such as scratching upholstery, by spritzing the cat with water when the cat does the undesired behavior. In this case, Randall's friends found him so annoying they trained him out saying "per kent" by spraying him with water every time he pronounced it that way. Training people this way was previously a punchline in [[220: Philosophy]], while training a cat this way was previously a punchline in [[1786: Trash]].

===Table===
{| class="wikitable"
! Percentage label
! Percent good
! Explanation
|-
! 65%
!
! This is the standard symbol
|-
! 65 percent
!
! This one has no space, it is more common in American English
|-
! 65 per cent
!
! This one has a space, it is more common in British English
|-
! 65 per¢
!
! This one uses the cent symbol in place of the word cent, which is rarely, if ever, used in this context.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:Percentage styles in order of acceptability
:[A long vertical line is shown with five dots on it.]
:[Label at the top:]
:Best
:[Dot labels from top to bottom:]

:65%
:[short distance]
:65 percent
:[a much longer distance]
:65 per cent
:[a distance roughly twice the previous]
:Sixty-five%
:[an exceedingly long distance]
:65 per¢

[[Category:Charts]]

{{comic discussion}}

2153: Effects of High Altitude

2019-05-24T16:14:23Z

162.158.62.49:

{{comic
| number = 2153
| date = May 22, 2019
| title = Effects of High Altitude
| image = effects_of_high_altitude.png
| titletext = If she'd lived in Flagstaff (elevation 6,903 feet), Cruella de Vil would only have needed 89 dalmatians for her coat.
}}

==Explanation==
{{incomplete|Created by a HIGH BOT. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}
This comic starts out with three effects of high altitude related to the air getting "thinner" and the lower air pressure. {{w|Denver}} is one mile (5280 feet or 1609 meters) above sea-level (as marked on the steps of the State Capitol). At this elevation, the [http://www.altitude.org/air_pressure.php average atmospheric pressure] is about 83% of sea level pressure, or about 840 mbar instead of 1013 mbar, and [https://www.vcalc.com/wiki/KurtHeckman/Gravity+Acceleration+by+Altitude gravity] is 99.94% normal, or 9.801 m/s2 instead of 9.806 m/s2. This has a number of effects:

* Water {{w|boiling|boils}} at 202 degrees F (94 degrees C), slightly lower than the baseline 212 degrees F (100 degrees C) it takes at sea level.
* Baseballs and golf balls fly slightly farther (with the same initial velocity, the distance is inversely proportional to gravitational acceleration so it would be 0.06% farther; in addition, the lower air pressure will reduce the resistance from the air the ball will experience, therefore it will slow down at a lower rate and thus fly even farther than the 0.06% due to gravity).
* {{w|Sunburn}} develops faster because there is less atmosphere above to filter out harmful ultraviolet rays.

As usual for xkcd, the effects of high altitude are extended in a comically absurd manner, applying this "slightly less" rule to things that have nothing to do with altitude:

* {{w|Scrabble}} is a board game where each letter is assigned a point value based on its frequency of use in the edition's language. The comic claims all letters are worth 16% more. When applied to the {{w|Scrabble_letter_distributions#English|normal values for the Scrabble tiles in English}}
** Q is worth 12 instead of 10
** X is worth 9 instead of 8
** Y is worth 5 instead of 4
* A common {{w|superstition}} states that breaking a mirror causes 7 years of bad luck. The comic claims that at higher altitudes, only 5½ years are caused. It is unclear whether this implies that people living at higher altitudes have more or less luck.
* Marketing campaigns will often state "X is the new Y" to draw the audience of Y in toward the newer X. When used with age, usually at 10 year intervals ("40 is the new 30" is the slogan referenced), it is an attempt to convince an older audience that they can share in an experience commonly associated with a younger audience. At higher elevations, the comic claims, people can use or do things designated for an even younger audience.
** In the base 16 ({{w|Hexadecimal|hexadecimal}}) number system, the value 28 represents 2 * 16^1 + 8 * 16^0 = 40. Thus, 40 is the new 28. Remember that, although {{w| Answer to the Ultimate Question of Life, the Universe, and Everything|Douglas Adams doesn't write jokes other bases}}, Randall [[1000: 1000 Comics|does]]
* German band {{w|Nena (band)|Nena}}'s hit ''99 Red Balloons'' (an English adaptation of the original song called ''{{w|99 Luftballons}}'') is a song about a global (not necessarily nuclear) war started by a large clump of balloons mistaken for enemy aircraft (although the original German song refers to "UFOs aus dem All", the lyrics of the English-language song say "There's something here from somewhere else" which does not imply extraterrestrial origins, merely that the object is not of domestic origin; and "the war machine springs to life", which implies that a rival nation on earth is thought to be the culprit). The comic claims that if launched from a higher altitude, 94 balloons would have sufficed.
* {{w|420 (cannabis culture)|4:20}} is a code word for {{w|cannabis}} and has evolved in some circles to be the socially acceptable hour to consume cannabis. This has in turn evolved into a joke that when checking the time and finding it is exactly 4:20, people will add "blaze it" as a reference. The comic claims that, at higher altitudes, the socially acceptable time is earlier, so if there is an elevation of one mile, the socially acceptable time would be 4:17 and therefore, marijuana jokes are made earlier. This joke is probably related to the {{w|Cannabis in Colorado|legalization of recreational marijuana use in Colorado}}.

In the title text, ''{{w|One Hundred and One Dalmatians (franchise)|One Hundred and One Dalmatians}}'' is a children's book and Disney franchise based on it, where the villain, {{w|Cruella de Vil}}, aims to capture and kill 99 Dalmatian puppies to have the perfect spotted fur coat (the title includes the parents of the Dalmatian puppies). The comic claims that, at a higher altitude in {{w|Flagstaff, Arizona|Flagstaff}} (6903 ft / 2104 m), she would only have needed 89 Dalmatians, possibly implying that puppies at higher altitudes are bigger (perhaps because there is {{w|Decompression (altitude)|less air pressure to compress them}}) or that Cruella de Vil at high altitudes is smaller (possibly because of the {{w|Wrinkle#Water-immersion wrinkling|higher humidity and lower temperature}}).

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:'''Effects of High Altitude'''
:How life is different at one mile above sea level
:(e.g. in Denver)

:[Eight small panels, each containing an image with a caption at the top:]

:Water boils at 202°F
:[A pot on a stovetop, with steam rising from the pot]

:Baseballs and golf balls fly 5-10% farther
:[A baseball flying through the air]

:Sunburns develop significantly faster
:[Five wavy arrows hitting a curved surface]

:Scrabble letters are worth 16% more
:[Scrabble tiles for letters Q, X and Y with point values 12, 9 and 5, respectively]

:Breaking a mirror only causes 5½ years of bad luck
:[Cueball looking down at a broken hand mirror on the floor]

:40 is the new 28
:[Cueball and Megan are talking. Megan is gesturing]
:Megan: 50 is the new 40, and when you account for elevation it's more like 37.

:Nuclear war can be started with only 94 red balloons.
:[Five black balloons floating]

:People make marijuana jokes slightly earlier
:[Cueball and Ponytail are talking. Ponytail is looking at her phone]
:Cueball: Hey, what time is it?
:Ponytail: 4:17 Blaze it!

==Trivia==
The effect of altitude on sports was the topic of [[852: Local g]].

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Ponytail]]

2153: Effects of High Altitude

2019-05-24T16:05:39Z

162.158.62.49: /* Explanation */

{{comic
| number = 2153
| date = May 22, 2019
| title = Effects of High Altitude
| image = effects_of_high_altitude.png
| titletext = If she'd lived in Flagstaff (elevation 6,903 feet), Cruella de Vil would only have needed 89 dalmatians for her coat.
}}

==Explanation==
{{incomplete|Created by a HIGH BOT. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.}}
This comic starts out with three effects of high altitude related to the air getting "thinner" and the lower air pressure. {{w|Denver}} is one mile (5280 feet or 1609 meters) above sea-level (as marked on the steps of the State Capitol). At this elevation, the [http://www.altitude.org/air_pressure.php average atmospheric pressure] is about 83% of sea level pressure, or about 840 mbar instead of 1013 mbar, and [https://www.vcalc.com/wiki/KurtHeckman/Gravity+Acceleration+by+Altitude gravity] is 99.94% normal, or 9.801 m/s2 instead of 9.806 m/s2. This has a number of effects:

* Water {{w|boiling|boils}} at 202 degrees F (94 degrees C), slightly lower than the baseline 212 degrees F (100 degrees C) it takes at sea level.
* Baseballs and golf balls fly slightly farther (with the same initial velocity, the distance is inversely proportional to gravitational acceleration so it would be 0.06% farther; in addition, the lower air pressure will reduce the resistance from the air the ball will experience, therefore it will slow down at a lower rate and thus fly even farther than the 0.06% due to gravity).
* {{w|Sunburn}} develops faster because there is less atmosphere above to filter out harmful ultraviolet rays.

As usual for xkcd, the effects of high altitude are extended in a comically absurd manner, applying this "slightly less" rule to things that have nothing to do with altitude:

* {{w|Scrabble}} is a board game where each letter is assigned a point value based on its frequency of use in the edition's language. The comic claims all letters are worth 16% more. When applied to the {{w|Scrabble_letter_distributions#English|normal values for the Scrabble tiles in English}}
** Q is worth 12 instead of 10
** X is worth 9 instead of 8
** Y is worth 5 instead of 4
* A common {{w|superstition}} states that breaking a mirror causes 7 years of bad luck. The comic claims that at higher altitudes, only 5½ years are caused. It is unclear whether this implies that people living at higher altitudes have more or less luck.
* Marketing campaigns will often state "X is the new Y" to draw the audience of Y in toward the newer X. When used with age, usually at 10 year intervals ("40 is the new 30" is the slogan referenced), it is an attempt to convince an older audience that they can share in an experience commonly associated with a younger audience. At higher elevations, the comic claims, people can use or do things designated for an even younger audience.
: In the base 16 ({{w|Hexadecimal|hexadecimal}}) number system, the value 28 represents 2 * 16^1 + 8 * 16^0 = 40. Thus, 40 is the new 28.
* German band {{w|Nena (band)|Nena}}'s hit ''99 Red Balloons'' (an English adaptation of the original song called ''{{w|99 Luftballons}}'') is a song about a global (not necessarily nuclear) war started by a large clump of balloons mistaken for enemy aircraft (although the original German song refers to "UFOs aus dem All", the lyrics of the English-language song say "There's something here from somewhere else" which does not imply extraterrestrial origins, merely that the object is not of domestic origin; and "the war machine springs to life", which implies that a rival nation on earth is thought to be the culprit). The comic claims that if launched from a higher altitude, 94 balloons would have sufficed.
* {{w|420 (cannabis culture)|4:20}} is a code word for {{w|cannabis}} and has evolved in some circles to be the socially acceptable hour to consume cannabis. This has in turn evolved into a joke that when checking the time and finding it is exactly 4:20, people will add "blaze it" as a reference. The comic claims that, at higher altitudes, the socially acceptable time is earlier, so if there is an elevation of one mile, the socially acceptable time would be 4:17 and therefore, marijuana jokes are made earlier. This joke is probably related to the {{w|Cannabis in Colorado|legalization of recreational marijuana use in Colorado}}.

In the title text, ''{{w|One Hundred and One Dalmatians (franchise)|One Hundred and One Dalmatians}}'' is a children's book and Disney franchise based on it, where the villain, {{w|Cruella de Vil}}, aims to capture and kill 99 Dalmatian puppies to have the perfect spotted fur coat (the title includes the parents of the Dalmatian puppies). The comic claims that, at a higher altitude in {{w|Flagstaff, Arizona|Flagstaff}} (6903 ft / 2104 m), she would only have needed 89 Dalmatians, possibly implying that puppies at higher altitudes are bigger (perhaps because there is {{w|Decompression (altitude)|less air pressure to compress them}}) or that Cruella de Vil at high altitudes is smaller (possibly because of the {{w|Wrinkle#Water-immersion wrinkling|higher humidity and lower temperature}}).

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:'''Effects of High Altitude'''
:How life is different at one mile above sea level
:(e.g. in Denver)

:[Eight small panels, each containing an image with a caption at the top:]

:Water boils at 202°F
:[A pot on a stovetop, with steam rising from the pot]

:Baseballs and golf balls fly 5-10% farther
:[A baseball flying through the air]

:Sunburns develop significantly faster
:[Five wavy arrows hitting a curved surface]

:Scrabble letters are worth 16% more
:[Scrabble tiles for letters Q, X and Y with point values 12, 9 and 5, respectively]

:Breaking a mirror only causes 5½ years of bad luck
:[Cueball looking down at a broken hand mirror on the floor]

:40 is the new 28
:[Cueball and Megan are talking. Megan is gesturing]
:Megan: 50 is the new 40, and when you account for elevation it's more like 37.

:Nuclear war can be started with only 94 red balloons.
:[Five black balloons floating]

:People make marijuana jokes slightly earlier
:[Cueball and Ponytail are talking. Ponytail is looking at her phone]
:Cueball: Hey, what time is it?
:Ponytail: 4:17 Blaze it!

==Trivia==
The effect of altitude on sports was the topic of [[852: Local g]].

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Ponytail]]

2133: EHT Black Hole Picture

2019-04-10T20:31:42Z

162.158.62.49: /* Explanation */

{{comic
| number = 2133
| date = April 5, 2019
| title = EHT Black Hole Picture
| image = eht_black_hole_picture.png
| titletext = [five years later] Ok, it seems we were accidentally zoomed in slightly too far. But imagine there's a cool-looking twisted accretion disc just outside this black square!
}}

==Explanation==
This comic references the {{w|Event Horizon Telescope}}, an international project dedicated to imaging {{w|black hole}}s Sagittarius A* and M87 with angular resolution comparable in size to their event horizons. The first image of M87 was released to the public on Wednesday, April 10, 2019, five days after this comic's release, and appeared on the same day in the comic [[2135: M87 Black Hole Size Comparison]].

The image was produced from data gathered since 2006, collected by over a dozen radio telescopes around the world and combined through a process called {{w|interferometry}}. Normally, a telescope's resolution is limited by the size of its aperture, but by recording radio signals at multiple sites, the minute differences between the signals can be digitally processed into an image with much higher resolution. The telescopes used for the EHT are in Hawaii, North and South America, Europe, and Antarctica, and so the effective diameter of the collective EHT is almost the size of the Earth itself. As each telescope recorded observations of the black holes, the results were written to hard drives and mailed to observatories at {{w|MIT}} and the {{w|Max Planck Institute for Radio Astronomy}} for processing. Astronomical recordings can involve astronomical amounts of data, so the raw, original, feed from a telescope may never be stored if it is too dense -- it is instead processed live by computers to capture the information of interest, and the processed result is stored. 

The first image released by the EHT was expected to be in April 2017, but unforeseen events delayed it by two years, to April 2019. Randall predicts this trend will continue, and makes a joke by analogy to real-world difficult experiences capturing important moments.

Unfortunately for Randall, five days after this comic was released, [https://www.bbc.com/news/science-environment-47873592 the EHT team released a black hole picture].

The comic shows [[Cueball]] giving a press conference on the recent photographing of a black hole. However, the photograph is a disappointment, caused by the spectacular failure of several systems:

* You cannot download the picture.
Obviously, it would be quite impractical to fail to reliably provide this in an astronomical system. Cueball describes the system as being like {{w|Pinterest}}, where {{w|JavaScript}} prevents you from right-clicking on an image so that you could save it (or at least attempts to, there are many workarounds).

* You cannot screenshot the picture.
Cueball states that they then tried to take a screenshot, but the key combination to make a screenshot instead turned off the monitor where the picture was being displayed whenever they tried to use it, requiring extra time and effort each attempt in order to return to the view of the black hole. This could reference the fact that many mobile devices incorporate the power button in their screen shot combination and the power button can also turn off the screen. Laptops and operating systems may also have undocumented key combinations that blank the screen, which users can accidentally press when in a hurry and create further stress for themselves.

* The viewing period ends before a physical camera can be used.
As a last act of desperation, Cueball took out his phone and attempted to take a photo of the screen showing the black hole, but by that time, the observation had ended, and the photo was lost.

In reality, none of this ''should'' be an issue as the picture would be immediately saved by the system and would not need to be downloaded from the site, but NASA especially knows that developers of a system can never predict the obscure happenstances that can combine to create failure at the end.

Cueball then states that they would try to take a picture of a black hole again next year.

The title text explains that (after presumably five years of annual tries), the picture failed again as the telescope was too zoomed in and only captured a featureless square. Since a black hole by definition returns no light sent to it, the photograph would be entirely black. Researchers however are primarily presumably trying to obtain images of the more interesting edge known as an {{w|accretion disc}}, which could actually be meaningfully photographed. The joke is that the black hole could only be photographed once a year, and in each year some incidental set of mistakes combined to prevent the photograph from actually being shared with anybody. This could be a reference to the {{w|cosmic censorship hypothesis}}, which states that a "naked" singularity cannot be viewed from outside an event horizon, where in this case the censor is some kind of "butterfly of doom" that bedevils astronomers who attempt to image one anyway, similar to some interpretations of the {{w|Novikov self-consistency principle}} (a possible resolution to various {{w|time travel paradoxes}} which asserts that any event which would lead to a paradox must have probability zero).

==Transcript==
:[Cueball is standing behind a lectern, with "Press Conference" and the EHT logo displayed on a projector screen behind him.]
:Cueball: We linked up our observatories, got everything aligned, and there it was:
:Cueball: The first image of a black hole!

:[Zoom in on Cueball. A question is asked from off panel.]
:Off-panel question: Can you share the picture?
:Cueball: Well, here's the thing...

:[Cueball lifts his arm holding his hand with its palm up.]
:Cueball: Turns out our telescope feed is like Pinterest, where you can't right-click to save an image.
:Cueball: So we tried to take a screenshot, but the key combination kept turning off the display instead.

:[Zoom back out to show that the image on the projector screen has changed to show a blurry picture of a white computer screen against a black background. The EHT logo remains at the bottom of the projector screen.]
:Cueball: I grabbed my phone and tried to take a picture of the screen, but I was too slow. The observation had ended.
:Cueball: We're planning to try again next year, and we'll definitely record the screen this time.

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Public speaking]]
[[Category:Astronomy]]
[[Category:Smartphones]]

Talk:2133: EHT Black Hole Picture

2019-04-10T20:23:13Z

162.158.62.49:

...someone edited the page to describe the EHT as "This comic references the non-existent "Event Horizon Telescope", an international project dedicated to deceiving the masses into thinking that black holes are real, in accordance with the whims of the Zionist conspiracy." wot? [[User:9yz|9yz]] ([[User talk:9yz|talk]]) 17:43, 5 April 2019 (UTC)
:Seems like there are a lot of vandals nowadays... I don't think I would be against requiring registration to edit pages. [[User:Linker|Linker]] ([[User talk:Linker|talk]]) 19:19, 5 April 2019 (UTC)
::I totally agree. It doesn't really detract from the ability to edit a page, it's still easy, but it just adds an extra step for vandals. [[User:9yz|9yz]] ([[User talk:9yz|talk]]) 19:27, 5 April 2019 (UTC)
:::I am also in favor of a registration requirement. I don't see a great proportion of helpful edits from users who aren't logged in. Requiring registration to edit seems like it could potentially be more effective & easier to implement than other moderation tactics. [[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 20:26, 5 April 2019 (UTC)
::::I can edit without making an account? Oh, this changes things.
::::As someone who has made a half dozen or so edits (including once writing the first draft of a description of a comic) and probably two dozen comments over the past 5 years without ever creating an account I won’t say you are wrong, but there will be fewer people editing and making comments if registration is required. Will registering keep vandals from vandalism? I very much doubt it. Who will enforce the termination of accounts?and what’s to stop vandals from creating multiple accounts? Again, I’m not saying you are wrong, but I will suggest that registration isn’t the panacea you might hope it to be... [[Special:Contributions/162.158.78.82|162.158.78.82]] 04:31, 6 April 2019 (UTC)
:::::I'm honestly surprised it isn't a requirement already...--[[User:Jlc|Jlc]] ([[User talk:Jlc|talk]]) 21:55, 6 April 2019 (UTC)
::::::I will echo the sentiment of [[Special:Contributions/162.158.78.82|162.158.78.82]] - registration would mean that I would not edit pages when the fancy strikes me [[Special:Contributions/141.101.104.131|141.101.104.131]] 08:10, 8 April 2019 (UTC)
::I probably wouldn't register but I do like to make the occasional comment.
:::Most sites that allow comments require you to log on. This also means others can recognise you and your comments, and read them knowing what you are like. [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 18:22, 8 April 2019 (UTC)
[[Special:Contributions/162.158.214.28|162.158.214.28]] 11:47, 6 April 2019 (UTC)
:It's true, and you know that it's true, fucking shill. {{unsigned|108.162.246.215}}
::I know that it exists, and I'm not going to argue it. Oh, also not signing a post doesn't hide your IP. You can literally see the IPs of anyone who edits the page, Mr. 108.162.246.215 [[User:9yz|9yz]] ([[User talk:9yz|talk]]) 17:49, 5 April 2019 (UTC)
:::The IPs are irrelevant anyway, they're CloudFlare's -- [[Special:Contributions/162.158.90.36|162.158.90.36]] 18:23, 5 April 2019 (UTC)
::"Shill" implies that someone's paying us to correct these fallacious & bigoted statements. Do you really think any of us get paid to remove these blatantly offensive & frankly ridiculous assertions that space exploration is somehow a worldwide Jewish deception? Personally, I just enjoy accuracy. [[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 20:26, 5 April 2019 (UTC)
:::Couldn't "shill" also mean somebody acting as if they weren't part of the group, to test that somebody was loyal and obedient?
::: "Fetch me an idiot, son, and there's a shilling in it if you're fast enough!" [[Special:Contributions/172.69.46.58|172.69.46.58]] 11:28, 8 April 2019 (UTC)[[Special:Contributions/172.68.65.210|172.68.65.210]] 22:28, 5 April 2019 (UTC)
:It seems like many of these vandals are using IPs associated with generally good-willed editors in the past, e.g. [[Special:Contributions/108.162.246.215]]. Are they just connecting from places with public wifi? --[[User:Youforgotthisthing|Youforgotthisthing]] ([[User talk:Youforgotthisthing|talk]]) 02:25, 7 April 2019 (UTC)
::Those are Cloudflare's IPs, so not necessarily. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 06:32, 9 April 2019 (UTC)
In the transcript, Cueball is described as standing behind a podium. He may be standing /on/ a podium, but he is standing /behind/ a lectern.
[[User:Seezee|Seezee]] ([[User talk:Seezee|talk]]) 17:47, 5 April 2019 (UTC)
:Arent podiums and lecterns the same thing? [[User:9yz|9yz]] ([[User talk:9yz|talk]]) 17:49, 5 April 2019 (UTC)
::No - https://www.differencebetween.com/difference-between-lectern-and-vs-podium/
::No. Podium (from the Latin root meaning "foot") is the thing you stand on, a raised platform or dais. Lectern (from Latin "to read") is the stand that provides a place for notes or other written prompts, from which a speaker may read during a lecture or presentation. It's not uncommon for people to conflate them. [[User:Seezee|Seezee]] ([[User talk:Seezee|talk]]) 18:02, 5 April 2019 (UTC)
:::If enough people conflate them, it's not a mistake any more, it becomes another definition. And lexicographers often use written uses as confirmation, so anyone who wants to see podium get this sense should forward this URL to all the dictionary publishers.[[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 18:15, 5 April 2019 (UTC)
::::What's the threshold for "enough people" (itself a grammatically incorrect phrase; see https://grammarist.com/usage/amount-number/)? In any case, I'm not getting into a debate about prescriptive vs. descriptive lexicography as it's off-topic and trollish. Besides, the transcript has been updated. [[User:Seezee|Seezee]] ([[User talk:Seezee|talk]]) 18:23, 5 April 2019 (UTC)
"Enough people" is fine grammatically because "enough" can refer to either an amount or a number; it the case of "enough people" it's referring to a number of people. [[Special:Contributions/162.158.214.28|162.158.214.28]] 02:42, 6 April 2019 (UTC)
::[[1661: Podium]] [[User:Jacky720|That's right, Jacky720 just signed this]] ([[User talk:Jacky720|talk]] | [[Special:Contributions/Jacky720|contribs]]) 19:15, 5 April 2019 (UTC)
:::Heh. I'd forgotten that. Thanks, Jacky720! [[User:Seezee|Seezee]] ([[User talk:Seezee|talk]]) 19:27, 5 April 2019 (UTC)
:::Totally forgot! Awesome [[User:9yz|9yz]] ([[User talk:9yz|talk]]) 20:21, 5 April 2019 (UTC)
:Thank ''goodness'' someone corrected that. A million people using the wrong word doesn't mean it's the right word (especially when the root words have obviously different meanings); It just means a million people are using unclear\inaccurate language. Common usage ≠ correct usage. It's utility that matters: In this case, if a lectern is also a podium, what is the thing you stand on??? Podium is a common error, but it's still an error. Popularity doesn't equal truth. [[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 20:26, 5 April 2019 (UTC)
::That is very incorrect. Language is not a natural resource; it can't be measured or described outside of how it is used. If podium commonly used and understood to mean the thing you stand behind, and it's been used that way by many people for a long tome, the thing you stand behind is a podium. You can disagree with that usage all you like, it isn't any less correct. [[User:HisHighestMinion|HisHighestMinion]] ([[User talk:HisHighestMinion|talk]]) 13:26, 6 April 2019 (UTC)
:::HisHighestMinion, English (all varieties) is unusual in being user led, rather than being controlled by an Academy. [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 18:22, 8 April 2019 (UTC)
::In my opinion the reason for the podium vs lectern comes from the person speaking not having to stand to read notes of operate their presentation. Thus they can now speak from the podium, rather than at at the lectern. Also a lot of podiums* are stages. *anti-pedant point... When a word is adopted into English, English plural rules apply. [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 18:22, 8 April 2019 (UTC)
:I would call that a stool. Also, FWIW, words have different meanings from their roots all the time. Incredible originally meant unreliabe. [[Special:Contributions/162.158.62.67|162.158.62.67]] 14:16, 7 April 2019 (UTC)

Is there really anything else we need to add to the explanation? It seems complete.[[User:9yz|9yz]] ([[User talk:9yz|talk]]) 19:02, 5 April 2019 (UTC)

Ah, Pinterest. That website where you have to create an account to view pictures. And then once you do that and get to the post you want, you discover the original “pinner” literally just posted a photo from somewhere with zero indication of where it came from or how to find it so now you’re back to square one but have wasted a bunch of time, been spammed to death by emails and sold your soul to Pinterest. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 06:50, 6 April 2019 (UTC)
:Tha's why whenever I do a Google search I add -pinterest . . . .[[Special:Contributions/162.158.214.28|162.158.214.28]] 11:47, 6 April 2019 (UTC)
::It's the only resonable thing one can do. I hate pinterest with a passion. [[Special:Contributions/172.69.54.45|172.69.54.45]] 09:39, 10 April 2019 (UTC)

I don't know if these are appropriate for the explanation, but [https://twitter.com/planet4589/status/1114950810444677121 NSF and ESO have been being coy on Twitter]. [[Special:Contributions/172.68.143.162|172.68.143.162]] 23:11, 7 April 2019 (UTC)

I don't think we understand this joke at all. This image was supposed to be released on April 2017 and is now being released on April 2019. This must be relevant. Is the black hole only visible once a year due to our orbit? Sounds relevant if so. Why couldn't they release it in _2018_ if 2017 didn't work? [[Special:Contributions/162.158.78.58|162.158.78.58]] 00:04, 8 April 2019 (UTC)
: Well obviously, the picture from the first year was blurry, and the second time they put the flash on the wrong setting.[[Special:Contributions/172.69.46.58|172.69.46.58]] 11:28, 8 April 2019 (UTC)

1. Are you serious with the “needs more explanation”? It needs tweaked explanation for sure, but not longer. 2. VANDALS!!! (Imagine me shaking my fist in the air and saying “Vandals” like “Curse you Perry the Platypus”) 3. Not the Podium vs. Lecturn thing again...... [[User:Netherin5|“That Guy from the Netherlands”]] ([[User talk:Netherin5|talk]]) 14:24, 8 April 2019 (UTC)

[https://twitter.com/jsalsman/status/1115397415622729728] om nom nom
[[Special:Contributions/172.68.143.126|172.68.143.126]] 08:54, 9 April 2019 (UTC)