explain xkcd - User contributions [en]

1879: Eclipse Birds

2020-06-02T22:17:56Z

108.162.210.234: /* Explanation */

{{comic
| number = 1879
| date = August 21, 2017
| title = Eclipse Birds
| image = eclipse_birds.png
| titletext = 'Hey! Put her down!' 'No, it's ok! The next chance for me to be carried to a blood cauldron isn't until 2024!'
}}

==Explanation==
This comic is the fourth of five consecutive comics published in the week before and during the {{w|solar eclipse}} occurring on Monday, {{w|Solar eclipse of August 21, 2017|August 21, 2017}} which was visible as a total solar eclipse within a band across the {{w|contiguous United States}} from west to east and visible as a partial eclipse across the entire contiguous United States and beyond. The other comics are [[1876: Eclipse Searches]], [[1877: Eclipse Science]], [[1878: Earth Orbital Diagram]], and [[1880: Eclipse Review]].

During an eclipse birds and other animals show atypical behavior like they do in the case of the darkness in the night and a following sunrise. Birds stop singing during totality, then greet the return of the sun with a "dawn chorus". Owls, however, become active as do mosquitoes. But it's not easy to find studies about this behavior because the main focus lies mostly on the eclipse itself. And total solar eclipses are rare -- roughly every 18 months and then mostly not in the same region of this world. A nice article can be found here: [https://academic.oup.com/astrogeo/article-pdf/42/4/4.4/436602/42-4-4.4.pdf Effects of the 2001 total solar eclipse on African wildlife]. Hippos were so confused that their daily routine even on the next day was not back to normal. Baboons stopped feeding and a sun squirrel that fed in the afternoons didn't do so, while other larger animals like crocodiles, zebras, or lions were not affected. Butterflies settled and did not restart flying, mosquitoes appeared and settled before reappearing in the evening. Also bees moved into a hive and didn't come out until the next morning.

After the 2017 eclipse NASA published some [https://www.nasa.gov/feature/2017-solar-eclipse-highlights highlights]. A video presents chirping crickets in Jefferson City, Missouri. The California Academy of Sciences supports a citizen science project about [https://www.calacademy.org/citizen-science/solar-eclipse-2017 life responds].

In this comic, [[Cueball]] tells [[Megan]] that this will happen. However, instead of just cheeping and screeching in a different pattern than birds actually do during an eclipse, in the comic, the birds begin to prepare to make a sacrifice to appease their gods, similar to how ancient cultures like the {{w|Aztecs}}, [//www.vox.com/culture/2017/8/18/16078886/total-solar-eclipse-folklore are said to have acted]. Megan remains strangely nonchalant, offering only an clichéd admiration of nature as the birds around her use fluent English to set up a sacrificial ritual.

In the title text, it turns out that the birds are about to sacrifice Megan, and Cueball tells them to stop. But Megan tells him it is OK as she wants to try experience of being carried to a blood cauldron as she won't get another chance until the next eclipse in the US on {{w|Solar eclipse of April 8, 2024|8th of April, 2024}}. (A small region around Carbondale, Illinois [//nationaleclipse.wordpress.com/2016/06/28/x-marks-the-spot-two-total-solar-eclipses-in-seven-years/ will experience] two total eclipses in 7 years).

==Transcript==
:[Cueball and Megan standing together looking to the right.]
:Cueball: I heard that during an eclipse the birds all freak out.
:Megan: I guess we'll see!

:[Beat panel, the white background sky turns at the top slightly darker.]

:[As the sky turns to dusk sounds can be heard. It's written above Cueball and Megan inside squiggly bubbles.]
:Chirp Chirp!
:Chirp!
:Peep peep peep!
:Squawk!

:[The sky is now nearly dark, more at the top of the panel. The sounds continue, written in similar bubbles.]
:Chirp!
:'''Clank clank clank'''
:The time is upon us!
:Peep!
:'''Kachunk'''
:Prepare the blood cauldron!
:Cueball: Wow.
:Megan: Isn't nature amazing?

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Animals]]
[[Category:Astronomy]]
[[Category:Total Solar Eclipse 2017]]

1506: xkcloud/Transcript

2015-04-03T04:47:22Z

108.162.210.234: /* Post from users */ fix Stonehenge

*This is a valiant effort to create a transcript for the continually(?) growing dynamic comic [[1506: xkcloud]].
**The front page of the comic is [[1506: xkcloud#Transcript|transcribed]] as usual on the main page.
*See pictures of the other types of pages here: [[1506: xkcloud/Pictures of other pages|Pictures of other pages]].

==Intro==
*After clicking on the red button on the [[1506: xkcloud#Transcript|front page]] (only part of the transcript written on the main page for xkcd), you will see either:
** the [[#Help! We lost the text|Help! We lost the text]] page or
** the [[#Help! We lost the picture|Help! We lost the picture]] page.
*Both these pages are transcribed below.
**Here below the headings of the transcripts for the four pages links directly to the section with the relevant images on the page with [[1506: xkcloud/Pictures of other pages|Pictures of other pages].
*From there you have to choose either a picture to a text or a text to an image.
**If you press the ''Draw one your self'' button on the ''Help! We lost the picture'' this page will change slightly:
***[[#Draw one your self|Draw one your self]].
**When you then submit a picture, or if you just picked one of the five pictures or five text suggestions, or submitted a text your self, you will go to this page:
***[[#Help us recover more data|Help us recover more data]]
*From all pages you can go back to the [[1506: xkcloud#Transcript|front page]] by clicking on the image of Cueball at his desk.
*After completing the first post, there will always be four post shown below (also if you go back to the front page).
**When you complete a post your new post will be shown together with three new.
**When you push a button to recover more data these four posts (including "yours") will be shown instead of only three as to begin with.
**From here you can loop between these four pages (not counting the ''Draw one for your self'' as a separate page.)
*The above mentioned pages are fully transcribed below.
*Also, there are lists for the following Randall created text and items:
**[[#Reason for data loss|Reason for data loss]]
**[[#User names|User names]]
**[[#User pictures|User pictures]] (a description of possible images next to users)
**[[#Like buttons|Like buttons]]
*Finally, there is all the user input text. This will probably be impossible to transcribe but a few examples should be provided as an example.
**These will be given here: [[#Post from users|Post from users]]
**Some of the picture can be seen on this page:
***[[1506: xkcloud/Pictures posted by users|Pictures posted by users]].

==[[1506:_xkcloud/Pictures_of_other_pages#Help.21_We_lost_the_text_page|Help! We lost the text]]==

:[At the top of the page there are the following text:]
:'''Help! we lost the text that goes with this post!'''
:[For cases where the user has to submit or select a text according to a picture]
:Reason for data loss:
:[Here on this same line follows a text which is a random reason taken from a list created by [[Randall]]. See [[#Reason for data loss|examples below]]).]

:[Below this text is a white box on top of the light blue background. It is the post mentioned above. At the top is a random user picture - could be a person or a galaxy etc (see [[#User pictures|descriptions below]]). Next to the picture is a random user name (see [[#User names|descriptions below]]). The picture can be used for several user names.]
:[Below the user name is the picture from the post. This picture is also chosen at random from a set which must mainly be created from user input. Randall must have given some input to start with though - at least five pictures see [[#Help! We lost the picture|Help! We lost the picture]] section above).]

:[Below this and above five frames with text in two columns are this line of text:]
:Which text post do you think went with this picture?
:[The five texts below are from a random sample, created mainly by the users, but Randall must at least have made five to begin with. Some examples are [[#Post from users|transcribed here]].]
:[Below this is a box where you are invited to write and submit a text suggestion. In the box written in gray letters (rather than black, which it will turn to when you type something) are the following text:]
:Or, write your own
:[To the left is a button with the text:]
:Submit

:[By clicking on any of the five text boxes you get to a new page (see the [[#Help us recover more data|Help us recover more data]] page) where the chosen text is now standing above the picture from the post above. If you write a text and click the submit button your own text will be written above the picture.]

:[Below this submit text box is a thin black line. Below this to the left we again see Cueball sitting at his desk (as on the front page). If you click on the picture with Cueball you return to the front page.]
:Desk: XKCD.COM

:[Below him there are the following text and bulleted list:]
:Our policy
:regarding your
:personal data:

* Please stop sending us
:your personal data
* We are running out of
:places to put it
* Is this even yours?
* Does anyone recognize
:whose data this is?
* Oh jeez never mind here
:comes more data
* Why are you doing this
* Please stop
* Help
:[Below this list appeared late in the afternoon the following weak gray text:]
:Don't contact us

:[To the right below the thin black line are three post above each other with user picture and name above a post text and a picture. All three again random as mentioned above. Furthermore to the right above each picture (right of the first line - if there are multiple lines) of the post text are a blue like button that you can press. The buttons seems to be active links when you hover over them, but nothing happens when you click on them. The buttons have a thumbs up icon to the right. Next to the icon there is a random word taken from a list created by Randall. (It seems to be from a list of words that are synonymous with want - see [[#Like buttons|below]]).]

==[[1506:_xkcloud/Pictures_of_other_pages#Help.21_We_lost_the_picture_page|Help! We lost the picture]]==

:[At the top of the page there are the following text:]
:'''Help! We lost the picture that goes with this post!'''
:Reason for data loss:
:[Here on this same line follows a text which is a random reason taken from a list created by [[Randall]]. See [[#Reason for data loss|examples below]]).]

:[Below this text is a white box on top of the light blue background. It is the post mentioned above. At the top is a random user picture - could be a person or a picture of a galaxy etc (see [[#User pictures|descriptions below]]). Next to the picture is a random user name (see [[#User names|descriptions below]]). The same picture can be used for several user names (and probably likewise).]
:[Below the user name is the text of the post. This text is also random and it must mainly be user input. Randall must have given some input to start with though - at least five sentences see [[#Help! We lost the text|Help! We lost the text]] section below). Some examples are [[#Post from users|transcribed here]].]
:[Below is a blue rectangle where the missing picture should be. Instead there is only a white question mark:]
:'''?'''

:[Below this and above six picture frames in two rows is a line of text:]
:Which of these pictures do you think went with this post?
:[The five first pictures are from a random sample, created mainly by the users, but Randall must at least have made five to begin with). In the sixth and last picture frame the following text is written:]
:Draw one your self

:[By clicking on any of the five pictures you get to a new page (see the [[#Help us recover more data|Help us recover more data]] page) with the chosen picture now substituting the "?" in the post above with the chosen picture. If you click the Draw one your self the page will change slightly into the [[#Draw one your self|Draw one your self]] page - a page where you can do exactly this. From there you go to the other page mentioned before.]

:[Below these six frames is a thin black line. Below this to the left we again see Cueball sitting at his desk (as on the front page). If you click on the picture with Cueball you return to the front page.]
:Desk: XKCD.COM

:[Below him there are the following text and bulleted list:]
:Our policy
:regarding your
:personal data:

* Please stop sending us
:your personal data
* We are running out of
:places to put it
* Is this even yours?
* Does anyone recognize
:whose data this is?
* Oh jeez never mind here
:comes more data
* Why are you doing this
* Please stop
* Help
:[Below this list appeared late in the afternoon the following in light gray text:]
:Don't contact us ([http://euphoria.io/room/xkcd/ linking to this live chatroom])

:[To the right below the thin black line are three post above each other with user picture and name above a post text and a picture. All three again random as mentioned above. Furthermore to the right above each picture (right of the first line - if there are multiple lines) of the post text are a blue like button that you can press. The buttons seems to be active links when you hover over them, but nothing happens when you click on them. The buttons have a thumbs up icon to the right. Next to the icon there is a random word taken from a list created by Randall. (It seems to be from a list of words that are synonymous with want - see [[#Like buttons|below]]).]

==[[1506:_xkcloud/Pictures_of_other_pages#Draw_one_your_self_page|Draw one your self]]==
:[If you press the picture frame with the text ''Draw one your self'' on the [[#Help! We lost the picture|Help! We lost the picture]] page the page changes. It is not a new page. But below the white post frame with the blue rectangle with "?" there is now no longer six frames, but only one large frame. Above the frame is written:]
:Do your best to recreate the picture you think went with this post:

:[Below is a blank white frame with five tools to the left (pencil, eraser, redo, undo and delete all) and to the right you can choose between seven line thicknesses.]

:[Below this frame is a button on which it says:]
:Upload image
:[If you press this then you picture is uploaded and shown as part of the post on the [[#Help us recover more data|Help us recover more data]] page].)

:[Below the image editor nothing has changed compared to before and everything beneath the thin black line is as before.]

==[[1506:_xkcloud/Pictures_of_other_pages#Help_us_recover_more_data_page|Help us recover more data]]==
:[At the top of this third page (or fourth if coming from the paint a picture page) there are the following white text on a red button:]
:'''Help us recover more data'''

:[If you click this button you go back to one of the two pages that follows the front page that is the [[#Help! We lost the picture|Help! We lost the picture]] page or the [[#Help! We lost the text|Help! We lost the text]] page. So in this way a loop will begin. The only difference is that now there will be four pictures instead of three at the bottom, and it will be the four that was on this page - including the one you have been involved in at the top.]

:[Below this button is a thin black line. Below this to the left we again see Cueball sitting at his desk - same as with the two pages mentioned above as are the text given here below. If you click on the picture with Cueball you return to the front page.]
:Desk: XKCD.COM

:[Below him there are the following text and bulleted list:]
:Our policy
:regarding your
:personal data:

* Please stop sending us
:your personal data
* We are running out of
:places to put it
* Is this even yours?
* Does anyone recognize
:whose data this is?
* Oh jeez never mind here
:comes more data
* Why are you doing this
* Please stop
* Help
:[Below this list appeared late in the afternoon the following weak gray text:]
:Don't contact us

:[To the right below the thin black line are both the post you have just finished (either by connecting a text or image with the missing part or even typing or painting your self) as well as three other posts below "yours". They are stacked above each other with user picture and name above a post text and a picture. The other three are again random chosen - it is not the ones from the page where you should choose a text/image. Furthermore to the right above each picture (right of the first line - if there are multiple lines) of the post text is a blue "like button" that you can press. The buttons seems to be active links when you hover over them, but nothing happens when you click on them. The buttons have a thumbs up icon to the right. Next to the icon there is a random word taken from a list created by Randall. (It seems to be from a list of words that are synonymous with want - see [[#Like buttons|below]]). Above these buttons there (from late in the afternoon no April 1st) appear a word which by clicking it created a permalink:]
:Link
:[This is written over all the buttons for each of the possible posts.]

==Reason for data loss==

{| class="wikitable"
!Sentence
!Explanation
|-
| +++ OUT OF CHEESE ERROR. REDO FROM START +++
|A reference to Hex, the magical computer from Terry Pratchett's Discworld, which would occasionally emit this error
|-
|<%= reason %>
|A template used by server-side frameworks such as Rails, which would normally replace this line with the actual value of the "reason" variable.
|-
|a user's middle name was <nowiki></html></nowiki>
|Having a user name containing an html tag might cause issues in the server, similar to [http://xkcd.com/327 xkcd 327].
|-
|aol window in front of netscape window
|AOL (America Online, a dial-up online service popular in the 1990s) acquired Netscape (company that developed for the original commercial browser, precursor to Firefox) in 1998
|-
|Baby ur much 2 fast
|Lyrics from the Prince song "Little Red Corvette"
|-
|bookmarks migrated to Venezuela
|Bookmarks are typically migrated from one file folder to another so that they can be accessed by another browser.
|-
|butter didn't suit the works
|Reference to "Alice in Wonderland" -- the Mad Hatter put butter into his watch to make it keep more accurate time, and explained "I used the very best butter, too."
|-
|butter overflow
|butter instead of buffer
|-
|butter to text interface not found
|A reference to speech-to-text interfaces, typically used by people who cannot see easily to enable them to use a computer.
|-
|butter underrun
|butter instead of buffer
|-
|cannot save, there's something gross on the S key
|A reference to the "Control-S" save shortcut on both Windows and Mac, and is saying that they are unable to activate the shortcut (thus saving the data) because there is "something gross" on it.
|-
|CAPTCHA response indicated parahuman intelligence
|A CAPTCHA is a tool which aims to prevent comupter-generated submissions to an online form by asking the user a question which is easy for humans but (supposedly) hard for computers. In this case, the CAPTCHA detects {{w|parahuman}} intelligence rather than human intelligence.
|-
|cat-like typing detected
|When cats walk or sit on keyboards, they can type, which can be annoying. A program called [http://bitboost.com/pawsense/ PawSense] attempted to detect this and block the typed keystrokes to reduce inconvenience.
|-
|confirmation BIOS
|Pun on "confirmation bias" (a tendency to search for or interpret information in a way that confirms one's preconceptions, leading to statistical errors); BIOS is part of a PC's hardware
|-
|could not evade skifree yeti
|[http://en.wikipedia.org/wiki/SkiFree SkiFree] is an early 90s computer game that requires the player to ski down an endless slope. It's famous for a yeti that appears after the player reaches a certain distance, which then chases and eats the player. Possibly a reference to [[667: SkiFree]].
|-
|could not initialize sound blaster 16
|The Sound Blaster 16 is a PC sound card which used FM synthesis to play MIDI files, which was popular in the 1990s.
|-
|CRM-114 unit malfunctioning
|The CRM-114 unit's malfunction is the main plot device in the film Dr Strangelove
|-
|cumulonimbus #19 too rabbitlike
|A cumulonimbus is a type of cloud. This may be a reference to Hitchhiker's guide to the galaxy. The error suggests that the cloud looked too much like a rabbit.
|-
|data too big
|
|-
|database configuration violates the Prime Directive
|The [http://en.wikipedia.org/wiki/Prime_Directive Prime Directive] comes from [http://en.wikipedia.org/wiki/Star_Trek Star Trek], and refers to the principle of not interfering with the natural development of primitive cultures. This error is implying that the database is being seen as a primitive life, and therefore the server is not allowed to make any changes to it.
|-
|Dave's not registered, man
|Cheech and Chong reference: "Dave's not here, man".
|-
|Desystematized chronodynamic balancing detected in VX Module core.
|
|-
|dictionary too stiff to read
|dictionary in addition to being a book where you can look up the definition of words can also be a data structure of key value pairings.
|-
|electrons too big, stuck in wafer
|"Wafer" refers to silicon or other material used as substrate for semiconductor fabrication.
|-
|ERR:INVALID DIM
|On the Texas Instruments TI-83 and TI-84 calculators, this is an error message shown [http://oakroadsystems.com/math/ti83oops.htm#x_InvalidDim in various situations].
|-
|error reading drive B. [https://en.wikipedia.org/wiki/Abort,_Retry,_Fail%3F Abort, Retry, Fail?]
|A common error from MS-DOS, often caused by a failing floppy disk
|-
|error
|This error message is so uninformative as to be redundant.
|-
|error: error code [error] while decoding error code
|Similar to certain OS error messages which contain errors in themselves
|-
|error: operation completed successfully
|A somewhat common coding error in *nix programs. The program detected an error and tried to print the error using a function such as perror which prints a message based on the global variable errno. However, the error wasn't generated by a standard library routine so errno equals 0 (no error).
|-
|ethics in journalism
|Possibly a reference to the movement Gamergate, a group ostensibly dedicated to "ethics in video game journalism", but has been accused of misogyny and harassment.
|-
|eyelash! eyelash!
|Possibly a reference to [http://xkcd.com/1086 xkcd 1086]
|-
|files fell out
|Paper files (as would be stored in a filing cabinet) can be misplaced and items can fall out of them if mishandled. However, it would be unexpected for digital files to fall out in this way.
|-
|files overwritten with more interesting content
|
|-
|firewall caught fire
|Pun based on the inclusion of the term "fire" in "firewall"
|-
|floating point unit no longer afloat
|A floating point unit is a part of a CPU which can perform calculations on non-integers. The pun is that the floating point unit is not floating (as in on a liquid). Possibly a reference to the Jargon File's [http://www.catb.org/jargon/html/N/number-crunching.html#crunchly74-12-25 Crunchly comic].
|-
|food problematic
|Firefly quote
|-
|friday squid blogging
|Security guru Bruce Schneier regularly posts a blog post with this title, and some squid related news, primarily as a discussion thread
|-
|general uncertainty
|Possibly reference to the general uncertainty principle in Quantum Mechanics, which gives an upper limit for the accuracy of measuring two variables at the same time
|-
|GSM filter change required
|Possibly referring to an electronic component used to filter out GSM frequencies. Unlike automotive oil filters, electronic filters don't require changing.
|-
|guru meditation #00000025.65045338 press left mouse button to continue
|A common error from the Commodore Amiga
|-
|hard drive oil depleted
|Hard drives don't use oil/gas like cars do, so it would be strange for the oil to have depleted.
|-
|helvetica scenario
|A reference to the episode on Calcium from the BBC TV show Look Around You.
|-
|HTTP 403 and 3/4ths
|HTTP errors are emitted when an HTTP request (e.g. to download a web page) fails. 403 is Forbidden and 404 is Not Found; 403.75 is somewhere between the two. Reference to Harry Potter's Platform 9¾.
|-
|HTTP 418
|The 4xx class of status code is intended for cases in which the client seems to have erred. For example, the well known 404 is when the client requests a web page that doesn't exist. HTTP 418 is part of the [https://en.wikipedia.org/wiki/HTCPCP Hyper Text Coffee Pot Control Protocol], denoting "I am a teapot," and purportedly is used when sending an instruction to brew coffee to a teapot.
|-
|http is down
|Since all the traffic is being handled by http (or https), is http were truely down, it would be a conundrum.
|-
|hung up prematurely
|Possible reference to dialup modems: The server disconnected the phone line too soon.
|-
|I got pretty distracted trying to figure out how big space is
|
|-
|i hurt myself today / to see if i still feel
|Lyrics from "Hurt" by Nine Inch Nails.
|-
|illegal carrot detected in mail queue
|carrot instead of caret
|-
|insufficient smoke for current mirror array
|Refers to the phrase 'smoke and mirrors'
|-
|lights are out, hard drive is taking a nap
|
|-
|[https://en.wikipedia.org/wiki/Lp0_on_fire lp0 on fire]
|lp0 is the printer port, there used to be a 'printer on fire' error/warning
|-
|Main Bus B Undervolt
|A line from Apollo 13, when the spaceship is 'having a problem'.
|-
|mean connection time exceeded
|"Maximum connection time exceeded" might be an error -- by definition, some connections must last longer than the mean (average) connection time.
|-
|microwave running
|Both microwaves and Wifi operate on the same frequency and have been known to cause interference
|-
|minimum recursion depth not reached
|"Maximum recursion depth exceeded" would be an error -- "depth not exceeded" wouldn't be (and there is no minimum limit)
|-
|nanobots in the water
|
|-
|not a hair question
|One of the error messages that the Bucket bot in the #xkcd IRC channel can emit is "That is not a hair question."
|-
|oh jeez there's a lot of you can you all just hang on for a second please oh frig this is so bad
|
|-
|our buffer runneth over
|Old-English style message for "buffer overrun" instead of more modern language. There were no computers yet at that time.
|-
|out of electrons
|
|-
|out of monads
|Monads are a concept in functional programming languages, such as Haskell. They have a reputation for being hard to understand.
|-
|overcurrent undervolt caused by vacuum cleaner on same circuit
|
|-
|[https://en.wikipedia.org/wiki/PC_LOAD_LETTER PC LOAD LETTER]
|Error message on older printers stating to add extra letter-size sheets, which has become known to be a very cryptic error message. Reference to the film {{w|Office Space}}.
|-
|Please Insert Riven CD 4
|Riven is a graphical adventure game by Cyan Worlds which was distributed on 5 CDs.
|-
|PRESS PLAY ON TAPE
|The prompt given by a Commodore-64 when using the LOAD command (without a filename argument)
|-
|previously-recovered files overwritten by newly-recovered ones
|
|-
|qubit indeterminate
|Possibly referring to quantum indeterminacy of qubits, which are used in quantum computing.
|-
|RDBMS completely forgot how inner joins work
|"Inner join" is a common SQL operation performed by a Relational DataBase Management System
|-
|screws are stripped
|
|-
|server aperture too narrow for capital letters
|
|-
|server farm lost starbucks wifi signal
|
|-
|server fell in ocean
|
|-
|server had too much to drink
|Servers are unlikely to have human style issues with drinking too much alcohol.
|-
|server power cable stolen by raccoon for nest
|
|-
|server room haunted
|Maybe a reference to an UVB-76 broadcast in 2001, which said "I am 143. Not receiving the generator." and "That stuff comes from hardware room." in Russian
|-
|sitemap was held upside down
|Sitemap refers to a website directory. Paper maps can be held upside down.
|-
|Something went wrong: Something went wrong (Something went wrong)
|similar to certain OS error messages which contain errors in themselves
|-
|soonerist sperver fid dot nile
|A [http://en.wikipedia.org/wiki/Spoonerism spoonerism] - spoonerist serrver did not find file
|-
|spin cycle still active
|Washing machines have a spin cycle. Hard-drives spin. CPUs have cycles.
|-
|spin number must be of the form n/2
|Quantum spin numbers (in atomic physics) must be integers or half-integers
|-
|spontaneous splinal dereticulation
|"Reticulating Splines" is a loading message in The Sims and SimCity video game series.
|-
|SQL ejection
|ejection instead of injection
|-
|subtle threading bug in turing-complete version numbering system
|
|-
|sysadmin trapped in well
|Reference to Timmy being trapped in a well.
|-
|tape on write-protect hole fell off
|Read-only floppy disks have a ''write-protect'' hole in the corner. A writable disk has no hole.<ref>http://oit.ua.edu/oit/services/it-service-desk/write-protect-a-floppy-diskette/</ref> It was common practice to convert read-only floppy disks (that could be obtained for free due to, e.g. shareware distribution at computer stores) into writable floppy disks by placing sticky tape over the hole.
|-
|temporal paradox
|
|-
|the butter you have dialed is invalid or no longer in service
|butter instead of number
|-
|the little plastic tab on the box the data's in broke off
|
|-
|the server is temporarily permanent. Please try another also.
|
|-
|the system / is down
|Lyrics from [http://www.youtube.com/watch?v=ILVfzx5Pe-A "The System is Down"], also known as Strongbad Techno.
|-
|This copy of Ubuntu is not genuine and you have not yet resolved this issue.
|Similar warnings betray proprietary software designed to break when used outside the terms of its license. Messages like this are unlikely to be found in free software like Ubuntu, where anti-features are largely inviable.
|-
|This page contains content from the Open Source Initiative, who have blocked it on copyright grounds.
|It would be ironic for the Open Source Initiative, which promotes sharing and modification, to prevent the sharing of the page for copyright reasons.
|-
|too many hands on the keyboard
|Possibly a reference to a scene in NCIS where two people simultaneously used the same keyboard to "double hack".
|-
|transfer interrupted by incoming fax
|Internet access used to be on dailup modems, which is also used for telephone calls or faxing. These can't operate at the same time.
|-
|TRIED TO READ 9TH SIDE OF 8 TRACK
|Eight-track tape is an obsolete format for recorded music; the tape itself only had two sides. (Nine-track tape -- much wider than eight-track tape -- was used for computer data storage.)
|-
|turns out server was on circuit with lightswitch by door
|If you turned out the lights as you left the room, it would power down the server.
|-
|Unable to cast variable of type Int32 to Magic Missile
|Magic Missile is a spell (which you can cast) in Dungeons & Dragons. Casting can also refer (in programming) to converting variables from one type to another, e.g. from integer to string. The pun here is that a 32-bit integer is being cast to the Magic Missile spell.
|-
|undefined is not a function, which really makes you think
|"Undefined is not a function" is a Javascript TypeError.
|-
|unexpected timezone drift desynchronization
|
|-
|unimplemented trap
|"Trap" refers to a computer operation code that is not implemented in the processor's instruction set and instead performs a system call. "Unimplemented trap" was an error message in some previous versions of MacOS.
|-
|User accepted terms but not conditions
|Normally, at a EULA you must accept 'terms and conditions'. There is basically no option to only agree to terms.
|-
|User is [https://en.wikipedia.org/wiki/Not_a_typewriter not a typewriter].
|A reference to the "isatty" function in the Unix C library, which reports whether a file descriptor is connected to a teletypewriter (terminal) or not. Interactive programs generally are intended to be used from a terminal.
|-
|user put spaces/vowels in filename
|Possibly a reference to filename restrictions?
|-
|UTF-31 decode error
|UTF-31 instead of UTF-32
|-
|virtual memory got too real
|Virtual memory is where the OS writes less-used parts of RAM to disk, so that the RAM can be used for another program, hence the less-used parts are in virtual memory. "This is getting too real" is an idiom meaning the person is approaching their wits' end.
|-
|wrong files
|
|-
|YOU MUST CONSTRUCT ADDITIONAL PYLONS
|A line frequently announced by the Protoss advisor in Starcraft.
|}

==User names==
:[Below are possible (not all?) user names mentioned next to any post as for instance on the [[#Help! We lost the picture|Help! We lost the picture]] page.]
:[In alphabetical order:]

<div style="-webkit-column-count: 4; -moz-column-count: 4; column-count: 4; -webkit-column-gap: 20px; -moz-column-gap: 20px; column-gap: 20px;">
*@meganamram
*Addison1
*Addison8
*Agric Silverfinger
*Aidan2
*Aiden1
*Aiden5
*Aidenn Aberforth Milne
*Alice1956
*Amanda08
*Anonymous
*Apple Martin
*Arthur19
*Ashley2009
*Ashley8
*Ashley92
*Ayden1952
*Bailey2001
*Barbara1974
*Benjamin Kenobi Sr
*Bool Hand Luke
*Brandi9
*Caden14
*Caden2010
*Candice10
*Carol04
*Chad80
*Charles18
*Chelsea2006
*Cheyenne1988
*Christina Applecare
*CMOS Def
*Curic Copperfinger
*Cynthia1995
*Cynthia99
*Dakota94
*David St. Hubbins
*Debbie26
*Debbie3
*Debbie62
*Deborah3
*Destiny1983
*Destiny89
*Dillon2008
*Donald19
*Donna2
*Dorothy7
*DragonBall Cooper
*Dunston Chexin
*Earl Sinclair
*Egbert Bentley White
*Eliezer Yudkowsky
*Elon Musk
*Eowyn L'Oreal James
*Euphegenia Doubtfire
*Facebook Scott Fitzgerald
*Frances29
*Frances51
*Frances99
*Gary1951
*Gary8
*Gary86
*George Debian Bush
*George Reagan Renesmee Martin
*Green Mario
*Greg2004
*Hatsy Collins
*Henry05
*Henry4
*Horsepower Lovecraft
*J. Alfred Leftshark
*Jack3
*Jack39
*Jacob10
*Jada5
*Jaden Riley Rufio Tolkien
*Jaden21
*Jaina Khloe Rowling
*Jalen81
*James URL Jones
*Jayden79
*Jennifer1
*Jeph Jacques
*Joe Biden
*John2
*Jonathan27
*Joshua80
*Justin87
*Kaden61
*Kaitlin1976
*Karen3
*Kathleen78
*Keira10
*Keira2002
*Keira48
*Kelsey1970
*Kelsey1996
*Kenneth96
*Khloe14
*Kilroy
*Kristy2007
*Larry Ronald Hubbard
*Larry1994
*Lauren Ibsen Dolores Amit
*Linda08
*Lindsay2011
*Lisa1995
*Lord Gaga
*Lord Mondegreen
*Malik2
*Margaret11
*Margaret5
*Marie12
*Marie3
*Marissa Mayer
*Mark Zuckerberg
*Mark2007
*Mark92
*Martin Van Halen
*Matthew2006
*Mavis Bitcoin
*Michelle11
*Minecraft Holmes
*Misty3
*Myspace Tom
*Norton Ghost Dad
*Padme Dorothy James
*Pam06
*Patricia03
*Paul1957
*Player One
*Player Two
*Professor Monoculatus McToff
*Raymond6
*Ronald22
*Ruth3
*S. G. Dukat
*Samuel19
*Sarah55
*Sharon99
*Shaun1960
*Shaun46
*Sheena2005
*Sherri97
*Sidd Finch
*Sierra10
*Sierra7
*Stacy07
*Stacy14
*Steven02
*Steven2002
*Steven50
*Susan11
*Susan25
*Thomas2
*Tim21
*Tim87
*Tina Belcher
*Todd33
*Tonya22
*Tonya38
*Tracy1977
*Tricia1
*Tricia14
*Trinity1989
*Virginia1961
*Virginia2006
*Wil
*Wric Tungstenfinger
</div>

==User pictures==
:[Below are descriptions of possible (not all?) user pictures shown next to any user name as for instance on the [[#Help! We lost the picture|Help! We lost the picture]] page.]
:[The images can be directly accessed from http://imgs.xkcd.com/xkcloud/user-1.png to http://imgs.xkcd.com/xkcloud/user-20.png .]
*[Hairy complete stick figure]
*[Chipmunk]
*[Close up of male face with black hair on a gray background]
*[Galaxy]
*[Chipmunk head]
*[e^iπ ≈ 0]
*[Tree crossing the street]

==Like buttons==
:[xkcloud has "Like" buttons next to each post (next to the post text above the picture), similar to those on Facebook, but with random text from this alphabetical list below where all words are [http://www.thesaurus.com/browse/want synonyms for want].]
*Covet
*Crave
*Hanker
*Thirst
*Yearn

==Post from users==
:[Some of the picture can be seen on this page: [[1506: xkcloud/Pictures posted by users|Pictures posted by users]].]
:[It will likely be impossible to transcribe all this as it is user input, and thus not Randall's own text. But at least a few examples should be given here as a reference. If anyone wish to expand beyond a few feel free to contribute.]
*Meritocracy is a pipe dream
''The Mushroom Kingdom (from Super Mario Bros.) is a monarchic meritocracy''
*The prophecy was true!
*The tea party was right about GMO bicycles
*Everything makes sense now
*Turkey drumstick Stonehenge was surprisingly compelling
*I've made a huge mistake
*Um, I think somethings wrong with my carrot...
*The rest is darkness and decay
*Howerboard to full power!
*My hobby: Freaking people out
*Is this real life?
''Reference to Queen - Bohemian Rhapsody''
*Where should I put this new cool tatto?

*Exact composition of this... thing... is yet to be determined.
*AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
*Man, that cool-ade guy really lost some weight lately.
*Lol, no I didn't jump
*In hindsight, it makes perfect sense
*Whoops I left the Lens Cap on for this one. :S
*Duck Duck Go's secret algorithm
''Duck Duck Go is a search engine which doesn't track you. Somewhat ironically, their algorithm is a bit secretive''
*This isn't where I parked my zeppelin!
*Who stepped on my pop tart?
*Big Ben is going down
*Do my feet look fat?
*I say; Nuts to that!
*I can take photo's with my teeth!
*To infinity and birdyond!
''Reference to Toystory''
*I wish I could afford the monopolar model...
*I can control the BEES! But I only make them turn right
*the saddest moment of my childhood
*hey, so, we need to talk about your sphere-packing problem.

==References==
<references/>

Talk:1047: Approximations

2014-05-11T09:15:10Z

108.162.210.234:

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)
:::: Dgbrt: If not convinced by the proofs linked to in the "explanation" part, you might want to try this: [http://www.wolframalpha.com/input/?i=sum_%28k%3D0%29%5E38+cos%281%2F77+%282+k%2B1%29+pi%29]. I'm sure you'll find inspiration for similar formulas using PI over [any odd integer]. Your assumption that Randall used WolframAlpha for this very identity is probably wrong. This is a very well-known formula that appears in many high school books, and I am pretty sure it is part of Randall's culture. And this has nothing to do with 1=1. As for your original post,
::::*√2 = (√2-1)/((4-2)π/2-π)+1 : Is this what you call "matching an equation" to √2?
::::*So what you mean is that if an equation is true for an irrational number, then it must be for any real number? Like, (√2)^2 = 2, but because √2 is irrationnal, then x^2=2 (for all x?)
::::*This one's a bit tough. You will probably agree that γ-√2 is irrationnal. And so is √2. What about their sum?
::::*Well, maybe it doesn't to you. But is Σ n-2 = π^2/6 any better? Well, this one is true (using Fourier's expansion of the rectangular function).
::::Finally,
::::*√2 = 3/5 + π/(7-π) is false because it would imply that π is an algebraic number
::::*cos(π/7) + cos(3π/7) + cos(5π/7) = 1/2 is true, and proven by many
::::*γ = e/34 + e/5 seems false. But there doesn't seem to be a quick way to disprove.
::::*Σ 1/nn = ln(3)e seems false, but I can't see why. [[Special:Contributions/108.162.210.234|108.162.210.234]] 09:15, 11 May 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)