explain xkcd - User contributions [en]

1512: Horoscopes

2015-04-17T11:53:30Z

141.101.88.225: /* Explanation */

{{comic
| number = 1512
| date = April 15, 2015
| title = Horoscopes
| image = horoscopes.png
| titletext = If you live in the Northern hemisphere, anyway. In the southern hemisphere, due to the coriolis effect, babies are born nine months BEFORE they're conceived.
}}
==Explanation==
{{w|Horoscopes}} purport to predict someone's personality or future, based on the position of planets and stars at the time of their birth and at present. Horoscopes commonly group people into twelve groups based on {{w|zodiac signs}}. The names of the horoscope Zodiac signs are based on the names of twelve constellations that were the backdrop for the path of the sun in the ancient times when the rules of settings horoscopes were originally developed. Today, due to precession of the Earth's axis of rotation (and to a lesser degree due to the modern formal definitions of constellations), the Zodiac signs do not correspond fully to the names of actual constellations in the path of the Sun. One's zodiac sign is determined by the position of the sun on their birthday, with each sign representing a specific 30.4 day period (1/12th of a year), starting from vernal equinox.

Modern science has found {{w|Astrology and science|no basis for horoscopes}}, which is why the comic jokes about the fact that its horoscopes at least ''may'' be true. Actual horoscopes are typically so vague that they could be true for almost anyone regardless of their sign. Note that this horoscope mainly makes sense for people living in the {{w|northern hemisphere}} (as mentioned in the title text) and it is especially tailored for an audience in the {{w|United States}}, as most cultural references are centered on "Western" or even specific "American" culture, i.e. several won't even work in Europe, for example. However, with the principle understood, it is easy to apply local traditions for more accuracy in non-Western cultures.

The 12 category zodiac signs in horoscopes are based on birth dates. The average length of pregnancy, culturally considered to be nine months, is actually given as the 40 weeks (9.2 months) after the last menstrual period. However, what is relevant here is that it is only '''38 weeks after {{w|Fertilisation|conception}}''' (8.75 month). The first two weeks of the 40 week period is before {{w|Ovulation#Ovulation_in_humans|Ovulation}}, and the conception cannot occur before that.

Based on this knowledge [[Randall]] can do some informed guessing about the context of someone's conception (apart from the {{w|Sexual intercourse|obvious}}), depending on the sign. For example, people of the sign {{w|Virgo (astrology)|Virgo}} have been born between August 23 and September 22. This makes it most likely that they are conceived during December the year before. Given contemporary holiday music preferences, Christmas songs were likely to be playing the day they were conceived. This leads to the guess "You may have been conceived while a Christmas song played". See detailed description of all the signs and explanation of the horoscopes in the [[#Table of Astrological signs|table]] below.

Randall phrases his "predictions" as possibilities ("you may have") rather than declarations, acknowledging that it is a guess, and that it, unlike actual horoscopes, doesn't necessarily apply to everyone.

The title text refers to the {{w|Coriolis effect}} which applies to a body that is moving relative to an object that is spinning. Since the Earth is rotating, a force (the Coriolis force) causes moving objects to be deflected to the right in the northern hemisphere and to the left in the {{w|southern hemisphere}}. This effect is the reason that {{w|Coriolis_effect#Meteorology|weather systems}} (most clearly seen for {{w|hurricanes}}) spiral in one direction in the northern hemisphere and in the opposite direction in the southern hemisphere.

There is also a common {{w|Coriolis_effect#Draining_in_bathtubs_and_toilets|misconception}} that the Coriolis force in respect of the Earth affects objects on a much smaller scale, such as the direction water will spiral down a drain in the two hemispheres (see also [[843: Misconceptions]]). In reality, the relative rotational speed of the Earth (one rotation per day) is insufficient to effect anything but large-scale, relatively slow movement, such as {{w|prevailing winds}} and {{w|Ocean current|ocean currents}}.

Randall plays on this type of misconception to make a joke involving reversing the flow of time. So whereas babies are born nine months '''after''' conception in the northern hemisphere (clockwise) the Coriolis effect is the reason why babies are being born nine months '''before''' in the southern hemisphere (counterclockwise). Note that unlike these horoscopes, which are declared to have an "actual basis in fact", it makes no sense for the conception of a baby to happen after its birth, not even in Australia...

==Table of Astrological signs==
Here below is a table with data and explanation of the individual horoscopes:
{| class="wikitable"
!{{w|Astrological sign|Astrological sign}} (English name)
!{{w|Birthday}} range
!Expected {{w|Fertilisation|conception}}
!Horoscope prediction
!Explanation
|-
|♈ {{w|Aries (astrology)|Aries}} (The Ram)
|March 21 – April 21
|June 28 – July 28
|You may have been conceived after a 4th of July fireworks show
|In the US the {{w|Independence Day (United States)|Independence Day}} is celebrated on the 4th of July, and this is customarily celebrated with huge fireworks. Fireworks are a common metaphor for the culmination of sex (i.e. the orgasm), and offer a convenient opportunity for social gatherings that might lead to conception.
|-
|♉ {{w|Taurus (astrology)|Taurus}} (The Bull)
|April 20 – May 20
|July 27 – August 27
|You may have been conceived on a hot August day
|In most of the northern hemisphere there are many hot days in {{w|August}}. Hot days can lead to less clothing and more lust.
|-
|♊ {{w|Gemini (astrology)|Gemini}} (The Twins)
|May 21 – June 21
|August 28 – September 28
|You may have been conceived as the leaves began to change
|In the northern part of the northern hemisphere the {{w|autumn}} starts at the end of this time period, so the leaves will begin to change color.
|-
|♋ {{w|Cancer (astrology)|Cancer}} (The Crab)
|June 21 – July 21
|September 28 – October 28
|You may have been conceived by people trying on costumes
|This period ends a few weeks before {{w|Halloween}}, so it is not unlikely that the people who conceived you (mom and dad) tried on their new costumes when they made you. Roleplay, enhanced with costumes, can be a way to spice up a relationship and can lead to sex and procreation.
|-
|♌ {{w|Leo (astrology)|Leo}} (The Lion)
|July 22 – August 23
|October 29 – November 30
|You may have been conceived during Thanksgiving
|{{w|Thanksgiving}} is celebrated in the US on the fourth Thursday of November.
|-
|♍ {{w|Virgo (astrology)|Virgo}} (The Maiden)
|August 23 – September 22
|November 30 – December 29
|You may have been conceived while a Christmas song played
|It is very common for {{w|Christmas}} songs to be played in the month of December.
|-
|♎ {{w|Libra (astrology)|Libra}} (The Scales)
|September 22 – October 23
|December 29 – January 30
|You may have been conceived after a New Year's Eve party
|Since {{w|New Year's Eve}} always falls on December 31, and since the party goes on into the new year this fits with Libra. As it is very likely that people are together in a way that may lead to conception at this type of parties, there may even be rather more than a 30th part of the people that are Libra that are conceived at such a party.
|-
|♏ {{w|Scorpio (astrology)|Scorpio}} (The Scorpion)
|October 23 – November 22
|January 30 – February 29
|You may have been conceived by people stuck inside after a long winter
|This period is during the coolest part and towards the end of the {{w|winter}} in the northern hemisphere. People may even be forced to stay at home due to snow. When people have nothing else to do [https://www.google.dk/search?q=babies+9+month+after+snowstorm&ie=utf-8&oe=utf-8&gws_rd=cr&ei=qzkuVcjAE4qsswGevoC4CQ many babies are born 9 months later].
|-
|♐ {{w|Sagittarius (astrology)|Sagittarius}} (The Archer)
|November 22 – December 21
|February 29 – March 28
|You may have been conceived during March Madness
|Originally {{w|European_hare#Mating_and_reproduction|March madness}} referred to the early part of the mating season for the {{w|European Hare}}, in which females fight off male suitors. Today, in a US context, this is an {{w|NCAA Men's Division I Basketball Championship|American college Basketball tournament}} that started in 1939 and is mainly held in March. It is even covered on TV under the name {{w|NCAA March Madness (CBS/Turner)|NCAA March Madness}}.
|-
|♑ {{w|Capricorn (astrology)|Capricorn}} (The Goat)
|December 22 – January 19
|March 29 – April 28
|You may have been conceived during a sexy Easter Egg hunt
|{{w|Easter}} falls between {{w|List_of_dates_for_Easter#Earliest_Easter|March 22}} and {{w|List_of_dates_for_Easter#Latest_Easter|April 25}} so most {{w|Egg hunt|Easter Egg hunts}}, sexy or not, will fall in the most likely period to conceive Capricorn children. The goal of an Easter egg hunt can be to find as many eggs in a given time, or find a sequence of eggs, each containing a clue to the next. It is not difficult to think of adult variations on these themes. Most Egg hunts do not involve people who should make them sexy! On the other hand the egg itself, as an Easter symbol, is a symbol of fertility and after the little ones have gone to bed the adults may want to produce more little ones.
|-
|♒ {{w|Aquarius (astrology)|Aquarius}} (The Water Carrier)
|January 20 – February 18
|April 27 – May 25
|You may have been conceived on Mother's Day
|{{w|Mother's Day}} in the USA,and some other countries, is on the second Sunday in May, between the 8th and 14th of May. The husband of a Mother being celebrated may wish to show his appreciation for her by paying her special private attention, potentially leading to sex and conception.
|-
|♓ {{w|Pisces (astrology)|Pisces}} (The Fish)
|February 19 – March 20
|May 25 – June 27
|You may have been conceived at someone's wedding
|It may have been your own parent's wedding, as the traditional wedding honeymoon typically includes sex (potentially lots of it). However, it is also not uncommon that people meet at weddings, and may even go so far as to risk conceiving a child at someone's {{w|wedding}}. June is widely reported as the [http://www.statista.com/statistics/241231/percentage-of-us-weddings-by-month/ most popular month for weddings in the United States]. The tradition of a June Bride (late spring and beginning of summer in the northern hemisphere) may be an old one and hence explains the reference for Pisces which lies mainly in June. [https://open.abc.net.au/explore/22074 ABC claim] that in the 15th and 16th century, May would have been the month for an "annual bath", and moreover {{w|June}} is named for {{w|Juno (mythology)|Juno}}, goddess of marriage and childbirth.
|}

==Transcript==
:[Above the frame:]
:'''Horoscopes'''
:With an actual basis in fact
:[A list with the name of each astrological sign in the first column (in gray) and a horoscope for each sign in the second column. Here given in table form]
:{| class="wikitable"
! Aries •
| You may have been conceived after a 4th of July fireworks show
|-
! Taurus •
| You may have been conceived on a hot August day
|-
! Gemini •
| You may have been conceived as the leaves began to change
|-
! Cancer •
| You may have been conceived by people trying on costumes
|-
! Leo •
| You may have been conceived during Thanksgiving
|-
! Virgo •
| You may have been conceived while a Christmas song played
|-
! Libra •
| You may have been conceived after a New Year’s Eve party
|-
! Scorpio •
| You may have been conceived by people stuck inside after a long winter
|-
! Sagittarius •
| You may have been conceived during March Madness
|-
! Capricorn •
| You may have been conceived during a sexy Easter egg hunt
|-
! Aquarius •
| You may have been conceived on Mother's day
|-
! Pisces •
| You may have been conceived at someone's wedding
|}

{{comic discussion}}


[[Category:Chart]]
[[Category:Sex]]
[[Category:Christmas]]

Talk:1500: Upside-Down Map

2015-03-19T12:50:58Z

141.101.88.225:

What's the point? [[Special:Contributions/108.162.249.173|108.162.249.173]] 09:59, 18 March 2015 (UTC)

Australia is still the "right" way up! {{unsigned|Thematkinson}}
:No it is not. But Tasmania stays put as it is an island. Maybe that has caused some confusion? --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 10:46, 18 March 2015 (UTC)
:What sort of projection have you been looking at if you think these three look the same when rotated 180 degrees? I'd forgive someone for thinking that about New Guinea, but for the other three it just seems laughable. Especially if you know what "map of Tasmamia" is slang for. [[Special:Contributions/108.162.249.190|108.162.249.190]] 14:13, 18 March 2015 (UTC)

"People often say that maps with the south pole at the top will change your perspective." Is this really something that people ''often'' say? I've never heard anyone say it... --[[User:Pudder|Pudder]] ([[User talk:Pudder|talk]]) 10:06, 18 March 2015 (UTC)
:I have heard it... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 10:46, 18 March 2015 (UTC)
:I agree with Pudder. Who are these people and how often to they say it? Explanation edited. - Equinox [[Special:Contributions/199.27.128.120|199.27.128.120]] 15:23, 18 March 2015 (UTC)

Is perhaps the comic's explanation about a previous map version? The comment about Australia being the normal way is wrong. [[Special:Contributions/108.162.254.80|108.162.254.80]] 10:10, 18 March 2015 (UTC)
:could be - I see Australia as being pivoted just like all the other continents (?) {{unsigned|Brettpeirce}}
::Agreed - see my comment above when this was first mentioned here. Now it has been corrected in the explain. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 10:46, 18 March 2015 (UTC)

Should the title text not say South Korea, rather than North Korea? [[Special:Contributions/141.101.106.101|141.101.106.101]] 10:41, 18 March 2015 (UTC)
:Well it is North Korea we have issues with today. But maybe it is not the former South Korea instead...? --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 10:46, 18 March 2015 (UTC)

UK was rotated, Japan was not rotated. Sardinia, Cyprus and other are missing. Hmm... is it a pre-alpha release?
[[Special:Contributions/188.114.103.245|188.114.103.245]] 13:18, 18 March 2015 (UTC)
:Japan sure looks rotated. Maybe it just looks similar upside-down? [[Special:Contributions/108.162.237.180|108.162.237.180]] 13:45, 18 March 2015 (UTC)
:Japan is rotated. As a Sardinian, I noticed the absence of Sardinia (and Sicily) and now I'm wondering whether I'd live near Japan (my sister would be extremely happy about it) or near China [[Special:Contributions/108.162.229.246|108.162.229.246]] 14:59, 18 March 2015 (UTC)
::Then why northern Hokkaido is towards north, and only Honshu is rotated? [[Special:Contributions/188.114.103.245|188.114.103.245]] 16:19, 18 March 2015 (UTC)
:::It is not that Japan is rotated. It is the individual island that are rotated. So the island to the north would still be to the north. And also this map is not so detailed that you can expect to see the difference if some fairly rotational symmetric islands are rotated. Also - thee are many islands that are not included. But for Sardinia and Cyprus. Since they are islands they will not be rotated with the Mediterranean Sea. So they would stay far away from Japan. Progably under some part of Asia where there is no seas to show them. The fact that many island must disappear after the rotation, and also the likeliness that some islands that are shown should have disappeared is mentioned in the explain --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 18:33, 18 March 2015 (UTC)

The explanation is inaccurate in a few spots in the "jokes" section. Specifically, all the points that say "X is now on the east/west (formerly west/east) of Y" are inaccurate. The whole point is that the spatial relationships of the land masses are unchanged with respect to the cardinal directions. In other words, Cuba is still off the east coast of the US, it's just that Seattle is where Miami used to be. {{unsigned ip|173.245.54.193}}
:Well someone changed this back from the true version. I have changed this back. Also the main part of this "joke" was that it was now next to the Canada. It would just be wrong to say it was only next to the Canada as was written originally, since it is next to the border between US and Canada. Made a small correction also for this to be more clear. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 18:37, 18 March 2015 (UTC)

I always wanted a height-inverted map (ocean trenches are mountain ridges, and vice-versa), with realistic national boundaries set upon the land (that was sea) based on where they might have existed in the sea (that, for us, is land). But I suppose one could go ''too'' far in such fripperies... ;) [[Special:Contributions/141.101.98.63|141.101.98.63]] 14:44, 18 March 2015 (UTC)

I thought this was a reference to clickbait based on the caption, where you are told it will change your perspective, and it didn't, it was just a stupid map. [[Special:Contributions/199.27.128.173|199.27.128.173]] 16:19, 18 March 2015 (UTC)

Yay comic 1500!
17:48, 18 March 2015 (UTC) or 12:48, 18 March 2015 (EDT)

It's not on the map, but I'm curious what happens to Antarctica in this little exercise? [[Special:Contributions/108.162.216.53|108.162.216.53]] 17:05, 18 March 2015 (UTC)
:Not that much probably since it is faily centered on the pole and except for one "tail" it is rather rotational symmetric. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 18:40, 18 March 2015 (UTC)

What's the island southwest of Newfoundland? It looks large for Prince Edward Island, and most of Nova Scotia isn't an island. [[Special:Contributions/173.245.52.160|173.245.52.160]] 19:08, 18 March 2015 (UTC)
:While Randall will know which squiggles arise from which real-world features, I reckon there'll be some contention regarding the small islands, given the resolution of the 'pen and ink' sketch doesn't do justice to the smallest (and often least familiar, to start with) perimiter-shapes. I've just gone and edited the bit about "The Falkland Islands" (mainly because I didn't like the technical "''it'' is", grammatically... maybe the better solution would have been for me to just to have made it "The Falkland Islands group|archipelago", though) and while I was there allowed for the fact that it's actually hard to say what that single island blob is precisely intended to be representative of. Note all the other little rocks also out there (but not generally lumped into the same island group), like South Georgia, and the nigh-on numberless ones of similar scale elsewhere around the planet, like the Canaries. Or the Hawaiian islands (if those aren't represented by the above-questioned blob).[[Special:Contributions/141.101.98.63|141.101.98.63]] 19:18, 18 March 2015 (UTC)
::Wouldn't it be rather Colombia and maybe Venezuela that could claim the Falklands? Ecuador and especially Peru are way too in the North I think. --[[User:Nezmo|Nezmo]] ([[User talk:Nezmo|talk]]) 21:02, 18 March 2015 (UTC)

Can someone explain why an upside down map changes your perspective? I've seen many before but no explanation of why it is any different. [[Special:Contributions/141.101.98.222|141.101.98.222]] 07:19, 19 March 2015 (UTC)

There are three main reasons I have heard for upside down maps changing one's perspective, although only the first one is inherently a question of vertical orientation. 1) We associate up-ness with superiority. Because we read top down and therefore habitually see what's at the top of a page as being first, but also as evidenced by phrases like "things are looking up", "at the top of her field", "coming out on top", "high up in the organisation", "top of the food chain", etc. etc. Wikipedia mention this in their page on South-up Map Orientations, and cite a paper "Spatial Metaphor and Real Estate North–South Location Biases Housing Preference", which claims to have demonstrated it with various studies. You can google the paper and read its abstract for free. 2) The fact that most maps one sees in Europe put Europe in the centre makes everything else seem a bit peripheral. 3) The projection increases the size of countries towards the top and bottom of the map, relative to those in the middle, so that, for example, Greenland and Africa look about the same size, when really Africa is 14 times larger (that factoid comes from an article in The Economist entitled "The True True Size of Africa"). Although this doesn't significantly increase the relative size of Europe and America, because they're about in the middle, it does make e.g. Canada and Russia seem much larger than they are, and massively diminish the relative size of Africa. I imagine, speculatively, that this could be a big deal for Africans who feel that the importance of their continent is overlooked. (I'm not familiar with the protocol on this page, so I haven't included links to the articles I mentioned, but anyone who wants to can easily do so.) [[Special:Contributions/108.162.229.165|108.162.229.165]] 10:53, 19 March 2015 (UTC)

In my opinion, the point of this comic is an observation of a fact how much of our deep-rooted and regarded as inevitable inter-human dealings and problems are utterly determined by purely random factors such as Earth plate tectonics and the actual nick of time (in the geological scale) at which human civilization developed into a global one. -- [[Special:Contributions/141.101.88.225|141.101.88.225]] 12:50, 19 March 2015 (UTC)

Talk:1375: Astronaut Vandalism

2014-05-30T13:56:31Z

141.101.88.225:

Is there an actual place that this is referencing? --[[Special:Contributions/108.162.222.41|108.162.222.41]] 05:14, 30 May 2014 (UTC)
:This seems to be Grenada, MS. {{unsigned ip|108.162.221.28}}

Grenada is possible - but given the NASA connection to Winona, and the fact that the numbers are exact (but reversed), I think it's a better candidate. {{unsigned|Thesetwoutes}}
:There is Camp McCain 17 miles north of Winona which would have the correct distances. [[User:Sten|'''STEN''']] ([[User talk:Sten|talk]]) 10:20, 30 May 2014 (UTC)

Space is usually indicated by pointing straight up. This sign points a little to one side as well though. Since these places the other pointers reference are in the northern hemisphere, and from the comic's point of view Memphis (North) is on the left and Jackson (south) is on the right, the 'Space' sign is pointing slightly south. Assuming the sign would point straight up at the equator, measuring the angle from the direction the sign is pointing to the vertical axis, and doing some math, would give the latitude of the sign and a better indication of its exact location. [[Special:Contributions/141.101.89.225|141.101.89.225]] 06:49, 30 May 2014 (UTC)

There doesn't seem to be anywhere named anything like "space" 53 miles from Jackson along this line. (Approximately Goodman, MS, birthplace of John Lomax.) Is the marker supposed to have been brought in specifically for this purpose? I thought it would make more sense if the arrow had just been turned up. (For the numbers reversed theory, 36 miles from Jackson appears to be completely rural, though features the site of Casey Jones' death.) [[Special:Contributions/108.162.216.35|108.162.216.35]] 12:00, 30 May 2014 (UTC)

My first thought that this was a reference to the blues musician Robert Johnson. According to legend, Johnson met the devil at a crossroads in Mississippi to exchange his soul for talent in blues music. There are a few different real crossroads that have been put forth as the legendary location. These include Dockery Plantation, Hazelhurst, Beauregard, Clarksdale, and Rosedale. None of these locations, though, match the distances shown in the comic (Dockery Plantation is probably the closest).

Here is a map showing the distances from each city (with sPace as Pace.) [http://maps.google.com/maps/api/staticmap?size=600x500&path=fillcolor:0x00FF00|weight:1|color:0xFFFFFF|enc:oevrE~hqiPrLeuMzg@}rM|bAknMp}AqgMzwBo~LlqCgsLljD{eLnbEovKtyEaeKtoFwqJtdGu|IfxGyeIpjHomHh{HqsGrjIixFfxI{{EfdJk~DlnJ}_DzvJu`Cn}Jy`BdbKo`A`eKy_@`fK?`eKx_@dbKn`An}Jx`BzvJt`ClnJ|_DfdJj~DfxIz{EpjIhxFj{HpsGpjHnmHfxGxeIrdGt|IvoFvqJtyE`eKnbEnvKljDzeLlqCfsLzwBn~Lp}ApgMzbAjnMzg@|rMtLduMuLfuM{g@|rM{bAjnMq}AngM{wBn~LmqCfsLmjD|eLobElvKuyEbeKwoFvqJsdGr|IgxGzeIqjHlmHk{HpsGqjIhxFgxI|{EgdJj~DmnJ|_D{vJt`Co}Jx`BebKn`AaeKx_@afK?aeKy_@ebKo`Ao}Jy`B{vJu`CmnJ}_DgdJk~DgxI}{EsjIixFi{HqsGqjHmmHgxG{eIudGs|IuoFwqJuyEceKobEmvKmjD}eLmqCgsL{wBo~Lq}AogM}bAknM{g@}rMsLguM&path=fillcolor:0x00FF00|weight:1|color:0xFFFFFF|enc:i{dnElemePhXixYxjAetY||BykYnnDm_Yb_F{nXtnGkzW||HabWriJ}eVptKefUn}L_cThdNq|RthO}rQrjPkfPviQgwN`fRseMh_SwqKpuS}{IphTkdHdxTokFjdUiqDfmUmvBnrUyz@ftU?nrUxz@dmUlvBldUhqDbxTnkFphTjdHpuS|{Ij_SvqK`fRreMviQfwNpjPjfPthO|rQhdNp|Rn}L~bTptKdfUtiJ|eV||H`bWtnGjzW`_FznXnnDl_Y||BxkYxjAdtYhXhxYiXjxYyjAdtY}|BxkYonDj_Ya_FznXunGlzW}|H~aWuiJ|eVqtKffUo}L~bTidNn|RuhO|rQqjPlfPwiQfwNafRpeMk_SvqKquS|{IqhTldHcxTlkFmdUjqDemUjvBorUzz@gtU?orU{z@gmUkvBkdUkqDexTmkFqhTmdHquS}{Ii_SwqKafRqeMwiQgwNsjPmfPuhO}rQidNo|Ro}L_cTqtKgfUsiJ}eV}|H_bWunGmzWc_F{nXonDk_Y}|BykYyjAetYiXkxY&path=fillcolor:0x00FF00|weight:1|color:0xFFFFFF|enc:_nc~EnfpdPpTmrVr_AunVhjBkgVptCm|U~}DymUnfF{{T~mGifT~sHsmSrxIsqRp{JsrQp|KupPr{LalOnxM{dN~rNi{LdkOooKv`P{aJrsPmrHxcQoaGbqQkoEp{Qc|C`cRehBrgRws@`iR?pgRvs@`cRdhBr{Qb|CbqQjoExcQnaGrsPlrHv`PzaJdkOnoK~rNh{LnxMzdNr{L`lOp|KtpPn{JrrQrxIrqR`tHrmS|mGhfTpfFz{T~}DxmUntCl|UjjBjgVp_AtnVpTlrVqTjrVq_AvnVkjBjgVotCj|U_~DzmUqfFx{T}mGjfTatHpmSsxIrqRo{JrrQq|KvpPs{L`lOoxMzdN_sNf{LekOpoKw`PxaJssPlrHycQpaGcqQhoEs{Qd|CacRdhBqgRts@aiR?sgRus@acRehBq{Qe|CcqQioEycQqaGssPmrHw`PyaJekOqoK_sNg{LoxM{dNs{LalOq|KwpPq{JsrQsxIsqR_tHqmS_nGkfTofFy{T_~D{mUqtCk|UijBkgVs_AwnVqTkrV&sensor=true]

So we can follow that sign, have a good day and go to space today? [[Special:Contributions/141.101.88.225|141.101.88.225]] 13:56, 30 May 2014 (UTC)

1133: Up Goer Five

2014-04-29T16:15:16Z

141.101.88.225:

{{comic
| number = 1133
| date = November 12, 2012
| title = Up Goer Five
| before = [[#Explanation|↓ Skip to explanation ↓]]
| image = up goer five.png
| titletext = Another thing that is a bad problem is if you're flying up to space and the parts start to fall off your space car in the wrong order. If that happens, it means you won't go to space today, or maybe ever.
}}

==Explanation==
Most of the jargon used in rocket science is not among the most commonly used words in everyday life. This comic is a commentary on the absurdity of boiling down technical explanations for lay people, with Randall challenging himself to "translate" the blueprints using only the one thousand most commonly-used words in the English language.

This comic is a diagram of the {{w|Saturn V}} rocket, "Saturn" isn't a very common word apparently, and neither is rocket, so [[Randall]] decided to use "Up Goer" which is a fair approximation of a craft designed to lift a payload from the earth to space. The Saturn V vehicle, which was in use by {{w|NASA}} from 1967 to 1972, is the vehicle as a whole. The engines of the Saturn V (the part that makes it go up) were divided into three stages. The first stage ({{w|S-IC}}) had five {{w|F-1 (rocket engine)|F-1}} engines which burned {{w|RP-1|refined kerosene}} mixed with oxygen as its fuel. That stage burned for 2 minutes 48 seconds and pushed the whole thing up about 61 kilometers (~38 miles) into the sky. After it fell away the {{w|S-II}} stage was activated. It used 5 {{w|J-2 (rocket engine)|J-2}} engines in the same configuration as the F-1s, and burned {{w|liquid hydrogen}} mixed with {{w|liquid oxygen}} for 6 minutes 35 seconds pushing the astronauts up to 184 kilometers (114.5 miles). The third stage ({{w|S-IVB}}) was a single J-2 engine burning liquid hydrogen and liquid oxygen. This stage was used in two parts, the first was to put the spacecraft into a stable orbit around Earth to perform a systems check and make sure the craft will be safe for going to the moon. This would usually take three orbits around Earth. As they came around the Earth they would burn the second part of the fuel, which is called a {{w|trans-lunar injection}} which put them on course for the moon. The first burn took 2 minutes 45 seconds, which put them in orbit 185 kilometers (115 miles) high.

It was first used as the launch vehicle for the {{w|Apollo 4}} mission, and it was used as the launch vehicle for most of the subsequent {{w|Apollo mission}}s (the exceptions being Apollo 7, Skylab 2-4, and the Apollo-Soyuz Test Project missions, which were launched using the smaller {{w|Saturn IB}} launch vehicle). One of the last missions of this design was the unmanned launch of {{w|Skylab}}, the U.S.'s first space station; for this payloader configuration, the Saturn V launch vehicle was officially designated the {{w|Saturn INT-21}}.

The Service Module (SM) Oxygen tanks, have a note that "This part had a ''VERY'' big problem once". This is a reference to the {{w|Apollo 13}} mission. 55 hours after launch, mission control requested the oxygen tanks contents be stirred to get an accurate reading of its contents. There was {{w|Apollo 13#Oxygen tank incident|a large bang}}, and power fluctuated throughout the craft. NASA had to scramble to ensure the safe return of the astronauts. Needless to say, the moon landing for that mission was canceled.

The {{w|Hindenburg disaster}} is referenced in the text "The kind of air that once burned a big sky bag and people died and someone said "oh, the [humans]!". The term "big sky bag" is used as the closest approximation of {{w|zeppelin}} which is a big bag filled with a lighter-than-air gas which makes the whole contraption float. The {{w|LZ 129 Hindenburg|Hindenburg}} on the day of the disaster was filled with {{w|hydrogen}}, despite being initially designed for use with {{w|helium}}. Helium is much less prone to catching fire, but was unavailable due to a US export ban on the element. The risks seemed acceptable at the time because the Germans had a history of flying hydrogen-based passenger airships. The original quote is "Oh, the humanity!" [http://www.youtube.com/watch?v=F54rqDh2mWA] (skip to 0:47 for the quote).

The bottom tank, which [[Randall]] describes as "...full of that stuff they burned in lights before houses had power" is highly refined kerosene, called {{w|RP-1}}, it is similar to jet fuel, burns well and is not likely to explode; unlike {{w|liquid hydrogen}}, which is much more likely to explode.

An earlier flirt with simple words is in [[547: Simple]].

The phrase "You will not go to space today" has become something of a catchphrase for xkcd; variants of it recur in the mouseover text in three What If? columns: the one about flying on other planets (the pilot does not want to go to space today); launching into Earth orbit (if your rocket cannot hit the right "horizontal" speed, you will go to space today, and then you will quickly come back); and building a jetpack out of AK-47s.

==Transcript==
:US Space Team's Up Goer Five
:The only flying space car that's taken anyone to another world (explained using only the ten hundred words people use the most often)
:[A list of Saturn-V parts, top to bottom, with their "Up Goer" description follows.]
:[Launch Escape System (LES)]: Thing to help people escape really fast if there's a problem and everything is on fire so they decide not to go to space
::[LES side nozzle]: Thing to control which direction the escaping people go
::[LES fuel]: Stuff to burn to make the box with the people in it escape ''really fast''
::[LES bottom nozzles]: Place where fire comes out to help them escape
:[Apollo spacecraft.]
::[Command Module (CM)]: Part that flies around the other world and comes back home with the people in it and fall in the water.
:::[CM capsule parts]: People box, door, chairs
::[Service Module (SM)]: Part that goes along to give people air, water, computers and stuff. It comes back home with them but burns up without landing.
:::[SM oxygen tanks]: Cold air for burning (and breathing). This part had a ''VERY'' big problem once.
::[Lunar Module (LM)]: Part that flies down to the other world with two people inside
:::[LM descent stage]: Part that stays on the other world (it's still there)
:::[LM feet]: Feet that go on the ground of the other world
:[Instrument Unit]: Ring holding most of the computers
:[S-IVB third stage]: Part that falls off third (this part flew away from our world into space and hit the world we were going toward)
::[Fuel tanks]: Wet and ''very'' cold
:::[Liquid hydrogen (LH2) tank]: The kind of air that once burned a big sky bag and people died and someone said "Oh, the [humans]!" (used for burning)
:::[Liquid oxygen (LOX) tank]: The part of air you need to breathe, but not the other stuff (used for burning)
:::[Helium pressurizing tanks]: Things holding that kind of air that makes your voice funny (it's for filling up the space left when they take the cold air out to burn it.)
::[J-2 engine nozzle]: Fire comes out here
:[S-II second stage]: Part that falls off second
::[LH2 tank]: More sky bag air (for burning) (cold + wet)
::[LOX tank]: More breathing-type air (for burning) (cold + wet)
::[Tank-to-engine fuel lines]: Thing that brings in cold wet air to burn
::[J-2 engine nozzles (qty. 5)]: Fire comes out here
:[S-IC first stage]: Part that falls off first
::[LOX tank]: More breathing-type air (for burning) (cold + wet)
::[Helium pressurizing tank]: More funny voice air (for filling up space)
::[LOX fill line]: Opening for putting in cold wet air
::[RP-1 fuel tank]: This is full of that stuff they burned in lights before houses had power.It goes together with the cold air when it's time to start going up.
::[F-1 engine nozzles (qty. 5)]: Lots of fire comes out here.
:[Bottom of spacecraft]: This end should point toward the ground if you want to go to space. If it starts pointing toward space you are having a bad problem and you will not go to space today.

==External links==
*[http://history.msfc.nasa.gov/saturn_apollo/documents/First_Stage.pdf First Stage Fact Sheet]
*[http://history.msfc.nasa.gov/saturn_apollo/documents/Second_Stage.pdf Second Stage Fact Sheet]
*[http://history.msfc.nasa.gov/saturn_apollo/documents/Third_Stage.pdf Third Stage Fact Sheet]
*[http://splasho.com/upgoer5/ The Up-Goer Five Text Editor]

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

Talk:1047: Approximations

2014-04-28T12:54:08Z

141.101.88.225:

They're actually quite accurate. I've used these in calculations, and they seem to give close enough answers. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 14:03, 8 January 2013 (UTC)

I only see a use for the liters in a gallon one. The rest are for trolling or simple amusement. The cosine identity bit our math team in the butt at a competition. It was painful. --[[User:Quicksilver|Quicksilver]] ([[User talk:Quicksilver|talk]]) 05:27, 17 August 2013 (UTC)

Annoyingly this explanation does not cover 42 properly, it does not say that Douglas Adams got the number 42 from Lewis Carroll, who is more relevant to the page because he was a mathematician named Charles Lutwidge Dodgson. He was obsessed with the number forty-two. The original plate illustrations of Alice in Wonderland drawn by him numbered forty-two. Rule Forty-Two in Alice in Wonderland is "All persons more than a mile high to leave the court", There is also a Code of Honour in the preface of The Hunting of the Snark, an extremely long poem written by him when he was 42 years old, in which rule forty-two is "No one shall speak to the Man at the Helm". The queens in Alice Through the Looking Glass the White Queen announces her age as "one hundred and one, five months and a day", which - if the best possible date is assumed for the action of Through the Looking-Glass - gives a total of 37,044 days. With the further (textually unconfirmed) assumption that both Queens were born on the same day their combined age becomes 74,088 days, which is 42 x 42 x 42. --[[Special:Contributions/139.216.242.254|139.216.242.254]] 02:43, 29 August 2013 (UTC)

:: This explanation covers 42 adequately, and would probably be made slightly worse if such information were added. The very widely known cultural reference is to Adams's interpretation, not Dodgson's original obsession. Adding it would be akin to introducing the MPLM into the explanation for the hijacking of Renaissance artists' names by the TMNT. I definitely concede that it does not cover 42 exhaustively, but I think it can be considered complete and in working order without such an addition. If it really irks you, be bold and add it! --[[User:Quicksilver|Quicksilver]] ([[User talk:Quicksilver|talk]]) 00:37, 30 August 2013 (UTC)

"sqrt(2) is not even algebraic in the quotient field of Z[pi]" is not correct. Q is part of the quotient field of Z[pi] and sqrt(2) is algebraic of it. The needed facts are that pi is not algebraic, but the formula implies it is in Q(sqrt(2)). --DrMath 06:47, 7 September 2013 (UTC)

13/15 is a better approximation to sqrt(3)/2 than is e/pi. Continued fraction approximations are great! --DrMath 07:23, 7 September 2013 (UTC)

How could he forget 1 gallon ≈ 0.1337 ft³?! [[Special:Contributions/67.188.195.182|67.188.195.182]] 00:51, 8 September 2013 (UTC)

Worth mentioning that Wolfram Alpha now officially recognizes the [http://www.wolframalpha.com/input/?i=e%5E-%28%281%2B8%5E%281%2F%28e-1%29%29%29%5E%281%2Fpi%29%29 White House switchboard constant] and the [http://www.wolframalpha.com/input/?i=%287%5E%28e-1%2Fe%29-9%29*pi%5E2 Jenny constant]. [[Special:Contributions/86.164.243.91|86.164.243.91]] 18:28, 8 October 2013 (UTC)

Maybe we should add the [Extension:LaTeXSVG LaTeX extension] to make it easier to transcribe these equations. -- [[Special:Contributions/108.162.219.220|108.162.219.220]] 23:02, 16 December 2013 (UTC)

;Protip - Does anyone see the correct equation?
Maybe this is just an other Wolfram Alpha error, like we recently have had here: [[1292: Pi vs. Tau]]. All equations still look invalid to me.
*''√2 = 3/5 + π/(7-π)'': is impossible because √2 is an irrational number and no equation can match.
*''cos(π/7) + cos(3π/7) + cos(5π/7) = 1/2'': could only match if ''cos(x) + cos(3x) + cos(5x) = 1/2'' would be valid, because ''π/7'' is also an irrational number.
*''γ = e/34 + e/5 or γ = e/54 + e/5'': would mean that a sum of two irrational numbers do fit to the Gamma Constant. Impossible.
*''√5 = 13 + 4π / 24 - 4π'': √5 and π are irrational numbers, there is no way to match them in any equation like this.
*''Σ 1/nn = ln(3)e'': doesn't make any sense either.
Maybe [[:Category:Comics featuring Miss Lenhart|Miss Lenhart]] can help.
--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:41, 17 December 2013 (UTC)

cos(π/7) + cos(3π/7) + cos(5π/7) = 1/2 is exactly correct.

Let a=π/7, b=3π/7, and c=5π/7, then
(cosa+cosb+cosc)⋅2sina=2cosasina+2cosbsina+2coscsina=sin2a+sin(b+a)−sin(b−a)+sin(c+a)−sin(c−a)=sin(2π/7)+sin(4π/7)−sin(2π/7)+sin(6π/7)−sin(4π/7)=sin(6π/7)=sin(π/7)=sina

Hence, cos(π/7) + cos(3π/7) + cos(5π/7) = sin(π/7) / 2sin(π/7) = 1/2
[[Special:Contributions/108.162.216.74|108.162.216.74]] 01:57, 16 January 2014 (UTC)

:What is this: sin(6π/7)=sin(π/7) ? A new math is born... --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:49, 16 January 2014 (UTC)

::Actually it does. My proof is geometric: the sines of two supplementary angles (angle a + angle b = π (in radians)) are equivalent because they necessarily have the same x height in a Cartesian plane. Look on a unit circle, or even a sine function. Also, Calculus and most other mathematics use radians over degrees because they make the functions simpler and eliminate irrationality when a trig function shows up, but physics uses degrees because it's easier to understand and taught first. Anonymous 01:27, 13 February 2014 (UTC)
::As an aside, just how far along in math are you? Radian measure is taught in high school (at least the good ones). Anonymous 13:24, 13 February 2014 (UTC)
:::Sure, I was wrong at my last statement. sin(6π/7)=sin(π/7) is correct by using the radian measure. But just change π/7 to π/77 would give a very different result on that formular here. I still can't figure out why PI divided by the number 7 should be that unique, PI divided by 77 should be the same. My fault is: I still can't find the Nerd Sniping here. And we all do know that Randall did use wrong WolframAlpha results here. According to the last question: I'm very well on Math, that's because I want to understand this. This is like 0.999=1. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:01, 13 February 2014 (UTC)
::::Ah, I see. I think it has to do with the way e^i*π breaks down, as one of the answers shown in the corresponding link explains, but other answers rely on various angle identities (including the supplementary sines one in the proof above). Anonymous 03:10, 14 February 2014 (UTC) (PS, have you checked [[545]] lately? I answered your question there, too)
:::::As per the derivation from january 16 , you can use any a,b,c that satisfies this set of equations: 2 a = b - a, a + b = c- a, c + a = π - a. This is due to the fact that sin(x) = sin(π-x), and what was derived the 16th. [[Special:Contributions/173.245.53.199|173.245.53.199]] 12:38, 21 February 2014 (UTC)

;So, still incomplete?

Where's our (in)complete judge? [[Special:Contributions/199.27.128.186|199.27.128.186]] 19:21, 18 December 2013 (UTC)
:The protip is still a mystery. I'm calling for help a few lines above. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:16, 18 December 2013 (UTC)
::The cosine one, in radians, is correct [[Special:Contributions/141.101.88.225|141.101.88.225]] 12:54, 28 April 2014 (UTC)

The 'Seconds in a year' ones remind me of one of my favorite quotes: "How many seconds are there in a year? If I tell you there are 3.155 x 10^7, you won't even try to remember it. On the other hand, who could forget that, to within half a percent, pi seconds is a nanocentury" -- Tom Duff, Bell Labs. [[User:Beolach|Beolach]] ([[User talk:Beolach|talk]]) 19:14, 17 April 2014 (UTC)
:Please do not change former discussions. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 23:57, 17 April 2014 (UTC)

1350: Lorenz

2014-04-03T13:03:03Z

141.101.88.225: /* Functionality and bugs */

{{comic
| number = 1350
| date = April 1, 2014
| title = Lorenz
| image = 1350_lorenz_loop.png
| titletext = Every choice, no matter how small, begins a new story
}}

{{incomplete|Should the image not just be the first frame wit four of the most common options. This image now gives way too much credit to the politican line of the story - which is less than a fifth of the total... Also all possible dialogues are not yet accounted for (and may never be?)}}

==Explanation==
This is a dynamic comic with crowd-sourced content. In honor of {{w|April Fools' Day}} the comic was posted a day early, on Tuesday instead of the usual Wednesday.

The title 'Lorenz' is referring to {{w|Edward Norton Lorenz}} who among other subjects was famous for {{w|Chaos theory}}. The title is a reference to that the story line of today's comic will include most (all?) of the user submitted dialogue and hence will in nature be chaotic. In addition, the title text, "Every choice, no matter how small", is a reference to the butterfly effect, a phrase coined by Edward Lorenz to describe how a small initial change can lead to wide variations in outcome in a chaotic system.

This comic is an example of a {{w|Choose Your Own Adventure}} story.

===Functionality and bugs===
The reader is initially presented with only one panel where Knit Cap Guy is sitting in front of his computer. The reader is given multiple choices concerning what exactly Knit Cap Guy is thinking. Upon choosing any option, a second panel appears, to give continuity to the story. Each new panel may have a new set of options or just the button "Continue" to see the next panel without making any choice in particular. Eventually, one may reach a dead end in which the story is interrupted and reader is presented with a text box to suggest how it should continue. Some of the suggestions given should eventually become available as new options.

It appears that new panels may be generated by Randall in near real time as user suggestions to dialog is submitted. The dialogue options are likely based on click-through rates and hence will change over day based on which choices are clicked most using {{w|A/B_testing|A/B measurement techniques..}} This will mean that the most popular choices for dialogue line will prevail as the statistics build up. In some cases, dialogue line options do not depend on the continuity of the storyline followed, suggesting that some parts of the story are planned. For example, do several of the storylines involve one of the two main characters waking up and for instance telling the other character, “I had the strangest dream…” or even reliving the dream again. This may be due to common submissions across storylines as well.

Normally, there is a total of 4 options to make: a/b/c/d. Their order changes constantly. Sometimes, there are 3 or fewer options, with the text box to suggest an alternative option. Sometimes, a given panel actually has 5 or more available options, although even in this case only 4 options appear at a time. Refreshing the comic changes randomly which of the available options are visible and which are hidden. As of April 2nd 2014, the existence of 5 or more options seems to occur only in a few rare cases, including the first panel itself.

Every panel has a "permalink" option which generates a unique URL for all the choices made by the reader -- so for example http://xkcd.com/1350/#p:26c8dcea-b9aa-11e3-8002-002590d77bdd will take you to a particular place in the selected choices.

{{w|HTTP cookie|Cookies}} are required to see this page properly.

====Buttons====
Instead of clicking with the mouse you can move more quickly through the panels using the keyboard:
* Up/Down - navigate options
* Enter/Right - choose option after navigating with Up/Down
* Left - go back one panel
* a/b/c/d - choose any option directly

====Bugs====
There seems to be a bug, where <nowiki>xkcd.com</nowiki> (http and https) are the only functioning URLs that display this comic. The URLs <nowiki>www.xkcd.org</nowiki> and <nowiki>m.xkcd.com</nowiki>, don't seem to work, instead displaying the previous comic, [[1349: Shouldn%27t Be Hard]]

Sometimes, an option seems to disappear completely, cutting off the all the branches of the story it might lead to. When the comic was first published, "Refresh... No new email... Refresh .. No new tweets... Refresh..." was available as one option of the first panel, but not only it became unavailable as of April 3rd 2014, permalinks to it (http://xkcd.com/1350/#p:6479d184-b9a0-11e3-b947-94de80a03a39) don't work anymore.

===Themes===

====Miscellaneous====
{| class="wikitable" |
! Name + Example image
! Description
|-
! Arguing [[image:lorenz - discuss.png]]
| The two characters argue with each other
|-
! Boomerang [[image:lorenz - boomerang 1.png]]
| The lone character finds a bomerang on the ground and throws it. The story either ends with the bomerang crashing into something of panel, the space rocket from another story branch getting hit, the character getting hit in the face with the |-
|-
! Computer problems [[Image:lorenz - laptop 1.png]]
| The laptop has an unspecified problem. The two characters attempt to fix it. The story either ends with the two randomly floating in the ocean (with or without circling sharks) or with the laptop being melted using a blowtorch.
|-
! Debate [[File:lorenz - debate 1.png]]
| Knit Cap Guy uses his laptop to watch a debate online between the Politician 1 (on the left) and the Politician 2 ([[Cueball]], on the right), the subject and the actual conversation of which varies according to the storyline. Eventually, they fight each other, the Politician 2 using a lightsaber and the Politician 1 using his bare fists. Subjects debated:
* Politician 1 questions Politician 2's project of tying multiple birds to a car as fuel replacement, which would require some method to make the birds take off in unison. The solutions mentioned are opening and closing an umbrella near them, using a predatory bird to the car to scare them, putting resources in the hands of bird educators for the purpose of training them and employing fiscal hawks. If the Politician 1 points out some problem with the reasoning, often the solution proposed by the Politician 2 would be doing the same in a larger scale. In the end, Hairy visits Knit Cap Guy and points out something happening near involving birds as a direct result of Politician 2's project.
|-
! Dinosaur interruption [[image:lorenz - dinosaur 1.png]]
| A green T-rex interrupts the story and proceeds to stamp on the house the main characters are in.
|-
! Dreams [[File:lorenz - wake up 1.png]]
| Sometimes, Knit Cap Guy or Hairy find themselves waking from a dream, suggesting that all prior events were just part of they dreaming. Often, in the storylines they fall in the big hole outside Knit Cap Guy's house, they wake up from a dream. Knit Cap Guy also wakes up after watching the debate, in some storylines. Often, the dream loops upon itself, as the characters wake up multiple times in the same storyline
|-
! Space planet [[image:lorenz - rocket 21.png]]
| Eventually the space rocket meets a guy on a very tiny planet.
|-
! Space rocket [[Image:lorenz - rocket 1.png]]
| There is a rocket on the ground just outside of the building. The rocket either explodes (with a screenshot from Kerbal Space Program), fails to launch or goes off into space.
|-
! Relativistic encounter [[Image:lorenz - rocket 16.png]]
| The space rocket meets another space rocket that asks a question about relativity. The other space rocket will shoot and destroy the main rocket if the question isn't answered satisfactory. Otherwise the two rockets fly past each other.
rebound or the character putting the bomerang down on the ground.
|-
! Salesman [[image:lorenz - sale 1.png]]
| Hairy meets [[White Hat]], a salesman with a small stand.
|-
! Thinking [[image:lorenz - thinking.png]]
| One of the characters take a panel or two to think about something.
|}

====Geography====
{| class="wikitable" |
! Name + Example image
! Description
|-
! Hole in the ground [[Image:lorenz - gap.png]]
| Hairy spots a hole in the ground and leans over it to make a comment
|-
! Huge hole on the lawn [[image:lorenz - hole.png]]
| There is a huge hole in the ground just outside of the building. The two characters always end up falling into it and awakening from a dream.
|-
! Tree [[image:lorenz - tree.png]]
| The characters walk past a tree.
|}

====Video games====
{| class="wikitable" |
! Name + Example image
! Description
|-
! 2048
| A number of storylines begin because Knit Cap Guy is playing {{w|2048}} on his computer. Often, Hairy invites him to go outside to do something related to the game, such as hunting for tiles somewhere.
|-
! Mario
| In the dialogue, Hairy asks Knit Cap Guy "Is this 1-1 from Mario?" upon seeing the gap in the ground. In the platform game {{w|Super Mario Bros.}} for {{w|NES}}, the levels are numbered 1-1, 1-2 and so on. In one branch, he says "Actually, it's the final castle. Grab your Fire Flower!"
|-
! Pokémon [[File:lorenz - pikachu theft.png]]
| Some of the storylines involve Pokémon battles featuring Pikachu, a very popular Pokémon. The battles are drawn in the style of the video games. (A trainer in the left-bottom corner facing the foe in the right-top corner, with a narration box below the scene and the trainer's Pokéballs visible, although some elements are missing, such as the level, gender and HP bar.)

Pikachu uses a number of different moves, though these are mostly made up and are not from the Pokémon games. Pikachu's moves are almost invariably remarked by the narrator as "It's not very effective...", but "It's super effective!" is also possible to appear. In the video games, a move is "not very effective" when the opponent's type resists the attacking move's type and "super effective" when the opponent's type is weak to the attacking move's type. Normally after a few failed attempts, there is an uncomfortable silence as the Pikachu says "Um..." and Knit Cap Guy and Hairy walk away. Pikachu is left in the grass and has time to make his final remarks as the two leave him. Rarely, a suggested move knocks Pikachu out.

One narration line is "Where's Twitch when I need help?", a reference to {{w|Twitch Plays Pokémon}} which was also covered by comic [[1333: First Date]].

Another narration line is: "Google Maps didn't warn me of this.", a reference to [https://www.youtube.com/watch?v=4YMD6xELI_k Google Maps: Pokémon Challenge].

Pikachu's moves:
* Abandonment - Pikachu disappears completely.
* Anguish - Pikachu is sad.
* Ant Colony - Pikachu is covered in ants.
* Cute Face
* Crowdsource
* The Discrete Metric
* Ethylene Dichloride - Nothing seems to happen, but Ethylene Dichloride is a toxic chemical, so there may be future consequences for the characters.
* Extrude - Pikachu's head moves away from his body as his neck becomes long and malleable.
* Faceless - Pikachu's face disappears.
* Friendship - Pikachu is on Knit Cap Guy's head, signifying they are now friends. Friendship, though not a move, is a game mechanic in the video games.
* Granite - Pikachu is atop a block of granite.
* Ink Cloud - Pikachu is covered in ink. In the storyline Pikachu uses it, there is the option to "gather" the ink.
* Radicality - Pikachu is on a skateboard.
* Struggle - In one storyline, after Pikachu uses a number of moves, it says: "Now I only have Struggle left. Tie?" In the Pokémon games, when a Pokémon runs out of PP (Power Points, the energy required to use each of its moves) for all its moves, it may only use Struggle, a weak move, indefinitely reusable, that harms not only the opponent but the user as well.
* Theft - Pikachu wears Knit Cap Guy's hat. Pikachu seems to be using "Thief", a similarly-named actual move from the games, that is used to steal the foe's item and use it as its own.
* Uplift - Pikachu's head goes upward, separated from its body, showing a long, thick cable still connecting the head and the body.
|}

==Images==
For the images that appear in this comic, see [[1350: Lorenz/Images]].

==Transcript==
{{incomplete transcript}}
:[An accurate transcript will be impossible to create because the comic changes over time..]

There are many options. Not everyone will see the same options. We are trying to capture as many options as possible in the transcript below. '''The order and options has changed since the transcripter captured the dialogue'''....The dialogue is likely based on click-through rates and hence will change over time based on which choices are clicked most using {{w|A/B_testing|A/B measurement techniques..}}

Often, when a panel is without any choices to make, there is only the option "Continue" to see the next panel.

'''1st Pane:''' ([http://xkcd.com/1350/#p:be7a3304-b685-11e3-8001-94de80a03a29 permalink]) 
Knit Cap Guy:
* Refresh... No new email... Refresh .. No new tweets... Refresh...
* These stupid tiles... I'll just play one more game.
* These stupid tiles... I'll just play one more game. [There are two completely separate branches with this same text. In one of them, it's written "i'll" in lowercase rather than "I'll".]
* Oh. Hey. There's some kind of political thing going on.
* Let's see if BSD is any easier to install nowadays.
* Gravity. Lots of it.
* Hurry! We're in talks with facebook.

:'''2nd Pane: Refresh Branch''' ([http://xkcd.com/1350/#p:6479d184-b9a0-11e3-b947-94de80a03a39 permalink]) 
:Hairy:
:* So you're still refusing to use Facebook?
:* Wanna build a snowman?
:* Hey. I hear Godot is in town. Wanna try to meet him?
:* You know. Your car's on fire.

:'''2nd Pane: Stupid Tiles Branch''' ([http://xkcd.com/1350/#p:79f036ac-b9a0-11e3-9003-94de80a03a39 permalink]) 
:[Hairy visits Knit Cap Guy.]
:Hairy:
:* There's something weird out on the lawn.
:* There's a dinosaur at the door.
:* I heard Home Depot has 1024 bathroom tiles.
:* I think I saw a "4096" tile outside somewhere.

::'''3rd Pane: Something Weird Branch''' 
::Knit Cap Guy:
::* This is an apartment. We don't have a lawn.
::* I have a lawn?
::* I hope it's not a bobcat this time.
::* If you reprogrammed the squirrel laser to target hipsters again...

:::'''4th-5th Panes: Apartment Branch''' 
:::[Knit Cap Guy and Hairy leave the house. They pass by a moat.]
:::Hairy:
:::* OK, two weird things.
:::* I can see a creeper down there.
:::* Is this 1-1 from Mario?
:::* See? It's like a glitch in the Matrix.
:::* This isn't where I left that...

::::'''6th Pane: Two Weird Things Branch''' 
::::Hairy:
::::* I count three.
::::* Why is there a gap here?
::::* Who tiled the moat?

::::'''6th Pane: Creeper Branch''' 
::::Knit Cap Guy: Damn Griefers.

::::'''6th Pane: Mario Branch''' 
::::[Knit Cap Guy and Hairy pass by a tree.]
::::Hairy:
::::* Why does that tree looks fake?
::::* Actually, it's the final castle. Grab your Fire Flower!
::::* It's over this way.
::::* I've never been this far before!

:::::'''7th-11th Panes: Fake Tree Branch''' 
:::::Narrator: A wild Pikachu appeared!
:::::Narrator: Enemy Pikachu used "Theft"!
:::::Narrator: It's not very effective...
:::::Narrator: ...
:::::Pikachu: Um...

:::::'''7th Pane: Never This Far Branch''' 
:::::Hairy: Are you going insane again?

::::'''6th Pane: Matrix Glitch Branch''' 
::::Knit Cap Guy:
::::* How far can we go?
::::* What the fuck?!
::::* How... How do we get everything back?

:::'''4th-5th Panes: Lawn Question Branch''' 
:::[Knit Cap Guy and Hairy leave the house. They pass by a moat.]
:::Hairy:
:::* Hmmm, did you order a moat?
:::* I don't remember this being here.
:::* Look how deep it goes!
:::* It looks like I can see Moria from here.

::::'''6th Pane: Order Moat Branch''' 
::::Knit Cap Guy:
::::* It helps keep bobcats out.
::::* Of course. All cool kids have moats in their yards.
::::* I don't have the best rerlationship with my mailman.
::::* Yep. Delivered in two days, courtesy of Amazon Prime.

::::'''6th Pane: Don't Remember Branch''' 
::::Knit Cap Guy:
::::* It has begun! That's one of the first holes in reality.
::::* I wanted to jump over the massive sinkhole, but nooo, someone just had to find out what was down there.
::::* Oh, I had the moving company install it last week.
::::* We poop in it.
::::* Finally got you out of the damn house.

:::::'''7th Pane: Hole in Reality Branch''' 
:::::Knit Cap Guy:
:::::* I've been working on a theory that 2048 is a tool for the old ones to open up portals to this reality.
:::::* What about black holes? Those don't count?
:::::* We must go deeper.

::::::'''7th-13th Panes: Damn House Branch''' 
::::::Narrator: A wild Pikachu appeared!
::::::Narrator: Enemy Pikachu used "Ink Cloud"!
::::::Narrator: ...
::::::Pikachu: Um...
::::::Pikachu: Well then.
::::::Pikachu: I might have left surprises in that direction.

::::'''6th Pane: Look How Deep Branch''' 
::::Hairy:
::::* I wonder if we can get someone to fall in?
::::* I'm going in. You can come if you want to. I think I see stars down there.
::::* That was a missing opportunity.
::::* I should come outside more often.

::::'''6th Pane: Moria Branch''' 
::::Knit Cap Guy:
::::* You see Moria from everywhere, Hairy.
::::* Yeah, who did you think gave them a balrog?
::::* Moria is an anagram of Mario!

:::::'''7th-10th Panes: Moria Everywhere Branch''' 
:::::Narrator: A wild Pikachu appeared!
:::::Narrator: Enemy Pikachu used "Ink Cloud"!
:::::Narrator: It's not very effective...
:::::Narrator:
:::::* Google Maps didn't warn me of this.
:::::* Enemy Pikachu used "The Discrete Metric"!
:::::* Gathered the ink!

::::::'''11th-21th Panes: Google Maps Branch''' 
::::::Narrator: It's not very effective...
::::::Narrator: Enemy Pikachu used "Uplift!"
::::::Narrator: It's not very effective...
::::::Narrator: Enemy Pikachu used "Cute Face!"
::::::Narrator: It's not very effective...
::::::Narrator: Enemy Pikachu used "Faceless"!
::::::Narrator: It's not very effective...
::::::Narrator: Where's Twitch when I need help?
::::::Narrator: It's not very effective...
::::::Narrator: Enemy Pikachu used "Abandonment"!
::::::Narrator: It's not very effective...

::::::'''11th-15th Panes: Discrete Metric Branch''' 
::::::Narrator: It's not very effective...
::::::Narrator: Enemy Pikachu used "Extrude"!
::::::Narrator: It's not very effective...
::::::Narrator: ...
::::::Pikachu: Um...
::::::Pikachu:
::::::* Now I only have Struggle left. Tie?
::::::* We are the knights who say Ni!
::::::* What is even going on here?

:::::::'''16th Pane: Struggle Branch''' 
:::::::Pikachu: No fair!

::::::'''11th-13th Panes: Gathered Ink Branch''' 
::::::Narrator: It's not very effective...
::::::Narrator: Enemy Pikachu used "Granite"!
::::::Narrator: It's not very effective...

:::::'''7th-10th Panes: Balrog Branch''' 
:::::Knit Cap Guy:
:::::* One does not simple "give" a balrog.
:::::* What? You weren't using it!
:::::* Gift-wrapping's the hardest part.

:::::'''7th Pane: Anagram Branch''' 
:::::[Knit Cap Guy and Hairy pass by a tree.]
:::::Hairy: Not idly do the leaves of Lorien fall.

:::'''4th-12th Panes: Bobcat Branch''' 
:::[A giant hole appears and they fall into it.]
:::Knit Cap Guy and Hairy: Aaaaa...
:::[Knit Cap Guy wakes up.]
:::Knit Cap Guy: Gasp [Goes to his desk.]
:::Knit Cap Guy: Yawn [Sits at his desk.]
:::Knit Cap Guy:
:::* Might as well clear more tiles.
:::* Definitely not going outside today.
:::* Thank God it wasn't a bobcat.
:::* Hmmm... I should buy a shovel.

::::'''13th Pane: Clear More Tiles Branch''' 
::::[Hairy visits Knit Cap Guy again.]
::::Hairy:
::::* Um, there's a hole in your lawn...
::::* There's someone at the door looking for you.
::::* I made an apple pie.
::::* If you want to do that, I'm rebuilding my bathroom this afternoon.

:::::'''14th Pane: Hole in the Lawn Branch''' 
:::::Knit Cap Guy:
:::::* If it doesn't lead to a 1024 tile, I'm leaving.
:::::* Damn bobcats.
:::::* I just had a dream about that.

::::::'''15th-16th Panes: Damn Bobcats Branch''' 
::::::Hairy:
::::::* Well it was here...
::::::* I don't think it was bobcats this time. Unless they have backshoes...

::::::'''15th-22th Panes: Dream Branch''' 
::::::[Knit Cap Guy and Hairy go outside again and fall in the hole again~.]
::::::Knit Cap Guy and Hairy: Aaaaa...
::::::[Knit Cap Guy wakes up, leaves the bed and finds a boomerang.]
::::::Knit Cap Guy:
::::::* It looks like is [sic] fell from space.
::::::* I hope this isn't just another one of those dreams that keeps coming back at you.
::::::* I hope this was not thrown by a bobcat.

:::::::'''23th-26th Panes: Space Branch''' 
:::::::[Knit Cap Guy throwns the boomerang away and it hits something.]
:::::::Crash!
:::::::[Knit Cap Guy runs away.]

:::::::'''23th-34th Panes: Coming Back Branch''' 
:::::::[Knit Cap Guy throws the boomerang twice, only for it to return to him both times.]
:::::::Knit Cap Guy: Hm. I was expecting a shark.
:::::::[Knit Cap Guy throwns the boomerang again, and it returns to him again.]

:::::::'''23th-30th Panes: Thrown by Bobcat Branch''' 
:::::::[Knit Cap Guy throws the boomerang, only for it to return to him .]
:::::::Knit Cap Guy: There's a mesage written on it.
:::::::[Knit Cap Guy throws the boomerang again. It hits something.]
:::::::Crash!
:::::::[Knit Cap Guy runs away.]

::::'''13th Pane: Thank God Branch''' 
::::Hairy:
::::* You just got a package. It's by the door.
::::* Why is there a bobcat on your lawn?
::::* There's somewhere [sic] weird out on the lawn.
::::* Hey do you know why there's a giant hole in the yard?

::::'''14th Pane: Something Weird Branch''' 
::::Knit Cap Guy:
::::* This seems familiar.
::::* Hold up. I need to get my wingsuit first.
::::* I hope it's not a giant hole.
::::* I have a bad feeling about this.

::::'''15th-18th Pane: Familiar Branch''' 
::::[Knit Cap Guy and Hairy go outside.]
::::Knit Cap Guy: I hope it's not a velociraptor.

::::'''15th-18th Pane: Hope Branch''' 
::::[Knit Cap Guy and Hairy go outside. They pass by a tree.]
::::Hairy: How disappointed are you?
::::Knit Cap Guy:
::::* I was expecting a bobcat.
::::* Oh? That's the other tree.
::::* Eh, not that much.

::::'''14th-16th Panes: Do You Know Why Branch''' 
::::[Knit Cap Guy and Hairy go outside.]
::::Knit Cap Guy: I swear if it's a bobcat.
::::Knit Cap Guy:
::::* Why did you bring me here?
::::* This dream has been looping for years, and yet we never tire of it. Why is that?

:::::'''17th Pane: Dream Loop Branch''' 
:::::[There is a gap in the ground. Knit Cap Guy jumps over it, Hairy looks into it.]

::::'''13th-14th Panes: Buy Shovel Branch''' 
::::[Knit Cap Guy looks at his screen wondering.]
::::Knit Cap Guy:
::::* Wow! Shovels sure are expensive!
::::* Shovels can't be actually made out of two sticks and a row of rocks?
::::* How can there be 36 types of shovel??!
::::* These prices are insane! I wonder if you can rent a shovel...

:::::'''15th-18th Panes: Sticks and Rocks Branch''' 
:::::[Knit Cap Guy is wondering more. Hairy comes. They connect their laptops. Hairy is wondering. Knit Cap Guy tries something at Hairy's laptop.]

:::'''4th-5th Panes: Squirrel Laser Branch''' 
:::[Knit Cap Guy and Hairy go outside.]
:::Knit Cap Guy:
:::* Let's just say we won't have to worry about parking.
:::* No, now they're just wearing wigs ironically.
:::* Things may have gotten out of control a little.
:::* At least it improved their haircuts.

::'''3rd Pane: Bathroom Tiles Branch''' 
::Knit Cap Guy:
::* But how many bathrooms?
::* That's 2^5 more than Ikea, I need to see for myself.
::* Let's go, I can keep playing on my phone on the drive.
::* Pfft. Amateurs. Let's go mock them.

::'''3rd Pane: Dinosaur Branch''' 
::T-Rex:
::* Self-doubt crippled my arms. Can I have yours?
::* I need a hand!
::* Did you think he was joking?
::* Sorry for just barging in, I couldn't reach the doorbell.

:::'''4th Pane: Crippled Arms Branch''' 
:::T-Rex:
:::* Never answer your mobile phone while I am addressing you!
:::* Also, have you heard about Tumblr?
:::* Also I have some trenchant observations on language and philosophy to make.
:::* It's not like you're using them.

::::'''5th Pane: Mobile Phone Branch''' 
::::[T-Rex is going to step on a house.]
::::T-Rex:
::::* I think you just entered a dead zone.
::::* Kids these days.
::::* Die you monster.

:::::'''6th Pane: Dead Zone Branch''' 
:::::[Knit Cap Guy is inside the house. He wakes up from a dream, goes outside and finds a boomerang.]

:::::'''6th Pane: Kids These Days Branch''' 
:::::[Knit Cap Guy is inside the house. He wakes up from a dream, and goes back to his computer.]

:::::'''6th Pane: Die You Monster Branch''' 
:::::[Hairy is inside the house. He wakes up from a dream, and starts singing.]
:::::Hairy: [Singing] ''I woke up like this.''

::::'''5th-11th Panes: Language and Philosophy Branch''' 
::::[T-Rex is going to step on a house.]
::::* T-Rex: Also, your brain is like this house.
:::: [Knit Cap Guy is inside the house. He wakes up from a dream and goes back to his computer.]

:'''2nd Pane: Stupid Tiles Branch''' ([http://xkcd.com/1350/#p:ffdd8916-b9a7-11e3-8001-002590d77bdd]) 
:[Hairy visits Knit Cap Guy.]
:Hairy:
:* What's with those tiny games you keep playing, anyway?
:* Isn't that sort of meaningless?
:* Up for a dangerous experiment with no pay?
:* You won't believe what just fell off of your roof.

:'''2nd-3rd Panes: Political Thing Branch''' 
:Laptop: "...and let's go live to the debate."
:[Two politicians are debating on TV.]
:Politician 1:
:* In contrast to my oppponent, who I quote, "Never liked Firefly much to begin with."
:* ...but even if you tied enough birds to the car, would you get them to take off in unison?
:* And if elected, I vow to win this war on Christmas once and for all!
:* I agree with my opponent all all [sic] issues and I think his economic plan is fantastic!

::'''4th Pane: Tied Birds Branch''' 
::Politician 2:
::* Tie a predatory bird to the car with a somewhat shorter rope so that it will scare off the rest of the birds without being able to reach them.
::* Training. That's why I support the "Airlift Act", which would put more resources into the hands of bird educators everywhere.
::* By opening and closing an umbrella near them.
::* One word: Fiscal hawks.

:::'''5th Pane: Airlift Act Branch''' 
:::Politician 1:
:::* But is "Airlift" an acronym?
:::* But you must agree that a bitd in the hand is worth more than three educators in the bush.
:::* Incredible!
:::* Wait... Is that like people who educate birds, or birds that teach?

::::'''6th Pane: Airlift an Acronym''' 
::::Hairy:
::::* There are birds outside tied to a car.
::::* The owls in our barn are forming a union.
::::* Or course: Avian Implemented Reuseable Lifter and Ingenuous Flight Technology!

:::::'''7th Pane: Car Branch''' 
:::::Knit Cap Guy:
:::::* Cool, let's see who we should vote for.
:::::* I know who I'm voting for.
:::::* How many birds?

:::::'''8th-9th Panes: How Many Branch''' 
:::::Hairy:
:::::* I call her "Serenity."
:::::* So when you said birds...

:::::'''10th-13th Panes: You Said Birds Branch''' 
:::::Knit Cap Guy:
:::::* Wait. The birds are inside!?
:::::* I needed to escape from politics anyway.

:::::'''14th-19th Panes: Birds Inside Branch''' 
:::::White Hat: Want to forget your dreams? There's a pill for that!

:'''2nd-3rd Panes: BSD Branch''' 
:[Knit Cap Guy is confused, staring at his laptop.]
:Knit Cap Guy: ??
:Knit Cap Guy:
:* Now I just need to look up what a "beard error" is...
:* Wait. What's on this other partition?
:* Why is Python importing Skynet?
:* My keyboard has to support SSH over USB?

::'''4th-7th Panes: Beard Error Branch''' 
::[Knit Cap Guy has ?? next to his head to signify confusion. [[Hairy]] walks in. (continue) Hairy is on the other side of the desk with his own laptop computer. Both the computers are connected through Ethernet cable. The two characters are typing on the computer. The two stop typing. Hairy has ??? next to his head. Hairy had stepped back while the character is checking on Hairy's laptop computer. The character is holding something rectangular.]
::Hairy:
::* The USB cable appears to be mono-directional.
::* Kernel mites?
::* I'm not sure rubbing butter on it will help
::* Yep. It's haunted.

:::'''8th-12th Panes: Rubbing Butter Branch''' 
:::[Hairy and Knit Cap Guy are handling their computers more aggressively.]
:::Knit Cap Guy: ARGH!
:::[They both stop. Knit Cap Guy walks away, his chair turned 180 degrees. Pushing aside the chair, the character returns with a fiery blowtorch while wearing goggles.]
:::Hairy: [holding up a finger] Um.
:::[Knit Cap Guy's computer was so burned, not only steam is coming out of the computer, but even the desk is noticeably burnt. The cable (apparently also burned) hangs from Hairy's laptop computer. The used blowtorch is clumsily laid sideways be the side of the desk. Both Knit Cap Guy (whose goggles are pushed off his eye) and Hairy are looking at the calamity. The chair is almost out of view. The goggles are on the floor while the chair is nowhere to be seen. Hairy and Knit Cap Guy are walking away from the scene.]
:::Hairy:
:::* Are you all of a sudden in the mood for Thai food?
:::* Let's try OpenBSD next time...
:::* If you'd done the other one, maybe the popcorn would have popped.
:::* Let's see if rubbing some bacon on it will work.
:::* Let's try Linux next time...

::::'''13th-14th Panes: OpenBSD Branch''' 
::::[13th panel is of a panned view. Hairy and Knit Cap Guy are walking on a path away from a house.]
::::[14th panel is back to a "normal camera view".]
::::Hairy:
::::* Okay then.
::::* Let's go exploring!
::::* I love Windows.
::::* Guess not.

::'''4th-7th Panes: Other Partition Branch''' 
::[Knit Cap Guy has ??? next to his head to signify confusion. [[Hairy]] walks in. Hairy is on the other side of the desk with his own laptop computer. Both the computers are connected through Ethernet cable. The two characters are typing on the computer. The two stop typing. Hairy has ??? next to his head. Hairy had stepped back while Knit Cap Guy is checking on Hairy's laptop computer. Knit Cap Guy is holding something rectangular.]
::Hairy:
::* Maybe if you cross connect the serial port to video port you'll be able to send the video directly in as an input for the password
::* What's a segfault?
::* I think the cameras need to face each other.
::* I'm not sure spaghetti works as a USB cable...

::'''8th Pane: Video Password Branch''' 
::[Knit Cap Guy and Hairy are at sea, both emitting ripples. A shark's fin can be seen close to Hairy.]
::Hairy:
::* It worked fine for the shark
::* We're definitely getting closer though
::* That didn't work!
::* It would have worked for Solaris.
::* Look, it made perfect sense at the time.
::* Still simpler than it used to be, I guess.

{{comic discussion}}
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