explain xkcd - User contributions [en]

Talk:1301: File Extensions

2013-12-18T15:16:45Z

Nick Douglas:

The title text reference of "hand-aligned data" may refer to ASCII art. [[Special:Contributions/108.162.215.28|108.162.215.28]] 05:36, 9 December 2013 (UTC) Alan K.
:I'd think not, given that art isn't exactly data. My guess would be tables in the .txt - a .txt file is just raw text with no formatting, so putting a table in requires manually formatting it with a bunch of spaces/tabs. It's not hard, but can be time-consuming and obnoxious. [[Special:Contributions/108.162.219.47|108.162.219.47]] 23:57, 10 December 2013 (UTC)
I think it's also a notable point, that the better rated document formats are more data centric while the low rated formats mix text informations with design elements and finally become pure graphic formats, which often is an indication, that the author didn't use the accurate file type for (mostly) pure text informations.
Something I don't understand is the gap between jpg and jpeg. The first suffix is AFAIK only an abbreviation used by older DOS/MS Systems to fullfill the 8.3 limitation for filenames. The note about hand alignment might concern the fact, that hand alignment is more time expensive which might increase the amount of the the author spend in overthink the content before layouting. Also often automated layouting as supported by many modern writing application might lead to unexpected and sometimes wrong results, because the automatism has no semantical knowledge about the authors intention, which might lead to post processed errors
Sorry for my bad english, I'm not a natural writer
[[Special:Contributions/108.162.231.239|108.162.231.239]] 05:45, 9 December 2013 (UTC)
:"hand-aligned data" seems to me like (manually) space-indented paragraphs, perhaps even manual padding to achieve the desired justification (centering and right-and-left-margin-hugging). And of course neatly lining up an 'embedded table', perhaps originally extracted from a .csv output. Although a number of plain-text editors (in the days of CGA and pure terminal/fixedspace fonts) or text formatters and wrappers (e.g. Lynx, man-page creaters, etc) ''would'' do things like this for you. And still do. At least insofar as the justification and margining is concerned. [[Special:Contributions/141.101.99.229|141.101.99.229]] 08:35, 9 December 2013 (UTC)
If anyone has taken the time to hand align a text file (as in a README, or other info file), they want it to look attractive for people to read. Odd are you're not going to take the time to "hand pretty" the document just to be malicious. Back in the BBS days there were a large number of "online" groups who had "signature" text files which were (very probably) hand aligned, and made extensive use of extended ASCII codes to generate basic graphics. (Granted there were programs to help auto-generate "ascii art".) If you've ever seen these files you'd know. [[http://www.thuglife.org/tlv5/aabout.shtml Example 1]] - [[http://textfiles.com/piracy/NFO/ Example 2]] [[User:Jarod997|Jarod997]] ([[User talk:Jarod997|talk]]) 14:14, 9 December 2013 (UTC)

I find it interesting that .jpg and .jpeg are at different levels. Aren't those the same thing? --[[User:Mralext20|Mralext20]] ([[User talk:Mralext20|talk]]) 05:48, 9 December 2013 (UTC)
Perhaps the .gif could contain suddenly unexpected scary/surprising frames? [[Special:Contributions/108.162.208.172|108.162.208.172]] 14:54, 9 December 2013 (UTC)

:That JPG/JPEG thing indeed seems strange. The more important distinction is between JPEGs that are photographs (fine) and those that are not (stupid). Also, pre-PNG, non-photograph GIFs could be just fine. And with all the accounting scandals we've seen, why would those spreadsheet formats get any credibility? -- [[User:Dfeuer|Dfeuer]] ([[User talk:Dfeuer|talk]]) 06:06, 9 December 2013 (UTC)
::Alongside .jpeg ('full' extension format) and .jpg (MS '8.3'-compatible extension format), I'd have expected .jpe (often full extension historically truncated on an 8.3 system), I must be honest. (And interesting that .docx doesn't co-inhabit the .doc line... or be somewhere else.) And the disparity betwixt the two versions of JPEG extension ''may'' relate to the tendency for a higher artefact-intensity of images back in the early days (when a better option than GIFs for... certain pictures... e.g. on Usenet between *nix workstations with vastly restricted bandwidths and storage capacities) compared to today's users (cameras that regularly store 10+MP pictures in low-loss JFIF files, and/or in Raw format!). But that may be a spurious or off-track reasoning on my part. [[Special:Contributions/141.101.99.229|141.101.99.229]] 08:27, 9 December 2013 (UTC)

I measured the bars in photoshop to +/- 2pixels. If we scale .tex to a value of 100 like the transcript says, these are the values I get for the bar lengths (rounded to one decimal place)
.tex 100
.pdf 89.4
.csv 84.9
.txt 66.5
.svg 64.8
.xls 48.6
.doc 21.2
.png 15.1
.ppt 14.5
.jpg 3.4
.jpeg -8.4
.gif -35.8

Dunno if it is helpful - or even trusted given I'm a first time commenter - but there it is. Closer values than just estimating, though the eyeballed estimates aren't bad. Not going to adjust the actual transcript because I feel that's overstepping my bounds. {{unsigned ip|108.162.216.56}}
:Not at all, wikis are free to edit for a reason. If we didn't want new users to be editing pages, we could have turned that off long ago. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 07:55, 9 December 2013 (UTC)

'''As the information that is provided by the graph comes as png, we should probably not trust her. --[[Special:Contributions/141.101.92.120|141.101.92.120]] 09:03, 9 December 2013 (UTC)'''
: Ha, +1 Like :-) [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]])

I never saw image of cute cats lying to me ... I mean, the gif is STILL the preferred format for animation, mostly because it's the only one supported. Animation formats based on PNG didn't catched up, hard to say why ... on the other hand, gif animation apparently have huge number of weird extensions, judging by the number of animated images I found which don't render properly in anything EXCEPT the browser. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 10:27, 9 December 2013 (UTC)
:The cute cat may not be lying, but since the format is used in other context -- like banner ads, then the average GIF may well be lying, also I believe there have been many security issues with GIFs and JPGs as they have been used as an attack vector for internet-bad-guys to take over your computer -- so while security issues is not specifically the topic for todays strip, then that may be worth noticing as well [[User:Spongebog|Spongebog]] ([[User talk:Spongebog|talk]])
:It is also possible to create animations with svg which is (for good reason, I like that format) ranked higher. Especially for scientific purposes it can be handy. Unfortunately is the MediaWiki software unable to show them. For example in the previous comic is an animation of the Galilean moons shown. That is an gif but someone also uploaded an [[Wikipedia:commons:File:Galilean_moon_Laplace_resonance_animation_(en_-_monochrome_-_350x217).svg|svg animation]] and I would say it does look smoother than the gif. [[Special:Contributions/108.162.231.215|108.162.231.215]] 14:40, 9 December 2013 (UTC)
:The Grumpy Cat is not grumpy in real life - so cat pictures DO lie! [[User:Schmammel|Schmammel]] ([[User talk:Schmammel|talk]]) 15:40, 9 December 2013 (UTC)
'''What is the scale of the chart? Does 'top' = most trusted'? Never assume anything with xkcd.''' [[User:David.windsor|David.windsor]] ([[User talk:David.windsor|talk]]) 18:29, 9 December 2013 (UTC)
: Brilliant. I didn't think of that at all. But now that you mention it... a .gif would be like a small part of a video. And people tend to trust those more than a static picture. [[Special:Contributions/108.162.222.209|108.162.222.209]] 08:58, 13 December 2013 (UTC)

Of course Randall does not really think that the file extension determines trustworthiness; the graph is tongue-in-cheek. Information can be trustworthy or untrustworthy no matter the format it's given in. [[Special:Contributions/108.162.216.221|108.162.216.221]] 18:50, 9 December 2013 (UTC)
:Yes, I believe the explanation somewhat misinterprets Randall's intentions, especially when it comes to the image formats. I interpret it not as a question of loss of information due to compression but instead a more general impression of when and by whom these formats are used and, as a consequence, the trustworthiness of the information conveyed through these formats. That would explain the jpg/jpeg distinction as (in my experience though I can't provide data that support it) .jpg is nowadays the preferred compressed format in professional contexts and .jpeg looks slightly childish. [[Special:Contributions/141.101.80.117|141.101.80.117]] 23:59, 9 December 2013 (UTC)

Reading more into the linked info about viruses embedded in JPEGs, it appears that the only way to receive a virus from a JPEG file would be to have ''already'' received another virus from a standard executable file, where such a virus causes the computer to execute code in a JPEG file rather than simply display it as it normally would. Since such a possibility is independent of the file type (the first virus might just as well have enabled code execution in DOC files, for instance), I've removed that bit of info. [[User:Zowayix|Zowayix]] ([[User talk:Zowayix|talk]]) 03:44, 10 December 2013 (UTC)

Can anyone explain the banner near the top of xkcd.com today, 10 Dec 2013? It reads,
"Dear Wikipedia readers: if everyone reading this _showed up at my house,_ (yellow highlight)I would be like "what {{unsigned ip|108.162.219.220}}
: I believe that is a reference to the similar banner that is on top of wikipedia right now asking for donations. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 18:02, 10 December 2013 (UTC)
::I don't see that banner, but it appears to be a play on Wikipedia's donation "pleas" that are often posted (including now) as banners at the top of Wikipedia which suggest that (to use the lates one:) "If everyone reading this donated, our fundraiser would be done within an hour". [[User:TheHYPO|TheHYPO]] ([[User talk:TheHYPO|talk]]) 18:05, 10 December 2013 (UTC)

I think it's a bit ambiguous whether Randall's references (for example) to jpg and gif means he doesn't trust that the images are accurate because of artifacting and stuff, or whether he's referring to jpgs and gifs that occasionally circulate with text on them as if to present information (e.g., lifehack images, or cat memes...) [[User:TheHYPO|TheHYPO]] ([[User talk:TheHYPO|talk]]) 18:05, 10 December 2013 (UTC)

;missing suffices

Obviously .html & .htm are so far to the left, they're off the chart. :-)
[[Special:Contributions/108.162.249.117|108.162.249.117]] 17:43, 10 December 2013 (UTC)

Any idea what file type was used to spread this hoax?
http://www.dailydot.com/lifestyle/apple-secret-bitcoin-mining-feature/
Various websites reporting on it use .JPG and .PNG, but I don't know what format the original graphic was.
[[User:InspectorClouseau|InspectorClouseau]] ([[User talk:InspectorClouseau|talk]]) 16:16, 17 December 2013 (UTC)

I'd be pretty wary of .flv...
[[User:Nick Douglas|Nick Douglas]] ([[User talk:Nick Douglas|talk]]) 15:16, 18 December 2013 (UTC)

1259: Bee Orchid

2013-09-02T23:15:03Z

Nick Douglas:

{{comic
| number = 1259
| date = September 2, 2013
| title = Bee Orchid
| image = bee orchid.png
| titletext = In sixty million years aliens will know humans only by a fuzzy clip of a woman in an Axe commercial.
}}

==Explanation==
Megan is explaining the evolutionary [http://www.pbs.org/wgbh/evolution/library/01/1/l_011_02.html phenomenon] of mimicry of female insects which fools male insects into trying to mate with the flower ({{w|pseudocopulation}}). This causes the pollen of the flower to stick to the male bee, who may make the same mistake with another flower, allowing for pollination.

This particular orchid mimicked the solitary bee ''{{w|Eucera}}'', which now only pollinates it in the Mediterranean (the bee isn't really extinct yet). This may eventually lead to the extinction of the orchid due to lack of reproduction. In most areas where it grows, the orchid is using a method of {{w|self-pollination}}, which can be detrimental to the genetic vitality of the species as it is a form of in-breeding.

Photographs of ''Ophrys apifera'':

[[File:Ophrys apifera flower1.jpg | x250px]] [[File:Bee orchids, Aller Brook Local Nature Reserve - geograph.org.uk - 833516.jpg | x250px]]

Female ''Eucera (Synhaolonia)'' guarding nests (left) and male ''Eucera'' (right):

[[File:Synhalonia_nest_1.jpg | x200px]] [[File:Apidae - Eucera sp. (male).JPG | x200px]]

The title text makes the assumption that, in sixty million years, much like the ''Eucera'' has today, humans will become nearly or completely extinct, and the only remaining records for other forms of life to identify them by would be commercials for the {{w|Axe (brand)|Axe}} line of male grooming products (ads which, like the orchid, present an idealized female form to deceptively attract males).

==Transcript==
:[Megan and Beret Guy are walking through woods.]
:Megan: There are these orchids whose flowers look like female bees. When males try to mate with them, they transfer pollen.
:Megan, crouching near a flower: This orchid -- ''Ophrys apifera'' -- makes flowers, but no bees land on them because the bee it mimics went extinct long ago.
:Megan: Without its partner, the orchid as resorted to self-pollinating, a last-ditch genetic strategy that only delays the inevitable. Nothing of the bee remains, but we know it existed from the shape of the flower.
:[They continue walking.]
:Megan: Its an idea of what the female bee looked like to the male bee...
:Megan: ...as interpreted by a plant.
:Beret Guy: Wow, so...
:[painting of an orchid]
:Beret Guy: ... The only memory of the bee is a painting.
:Beret Guy [text in corner of painting, like an artist's signature]: By a dying flower.
:[Beret Guy runs back to the flower and sits down]: I'll remember your bee, orchid. I'll remember you.
:[Beret Guy runs in the direction of Megan, out of frame.]

{{comic discussion}}
[[Category:Comics featuring Beret Guy]]
[[Category:Comics featuring Megan]]
[[Category:Comics with color]]
[[Category:Biology]]

Talk:1256: Questions

2013-09-02T21:50:18Z

Nick Douglas:

Another reason Poseidon is angry with Odysseus - early in the Odyssey, Odysseus blinds a cyclops who happens to be Poseidon's son.

Why did I just type the following in, when doubtless someone else has already done this..?
...a former great post just went to the main page.
They probably need error-checking/rearranging/something. And feel free to delete this entire comment if it becomes superfluous. [[Special:Contributions/178.104.103.140|178.104.103.140]] 10:19, 26 August 2013 (UTC)
:Just copied your comment into the transcript area. [[Special:Contributions/72.246.0.10|72.246.0.10]] 13:12, 26 August 2013 (UTC)
::I did delete it here, just because it's copied to the main page. Thanks for your great work!--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:18, 26 August 2013 (UTC)

Although I appreciate the LOTR reference, is this really the intent? What is Randall's wife's name? Delete if this is a bridge too far into personal life. --[[Special:Contributions/131.70.204.120|131.70.204.120]] 16:29, 26 August 2013 (UTC)

I answered [http://jlandl.blogspot.se/2013/08/answers-from-top-of-my-head.html all the questions], for my amusement. Feel free to use any answers you deem appropriate or accurate enough for the wiki. [[Special:Contributions/213.66.207.152|213.66.207.152]] 20:06, 26 August 2013 (UTC)

I'm confused that answers are being presented in different formats. Is the hyperlinked transcript a temporary state before answers are transferred to the table? Or is the transcript just a cleaner and more desirable alternative?{{unsigned ip|98.166.43.28}}

All answers here: http://www.reddit.com/r/xkcd/comments/1l3na7/questions/cbvigrd -- [[User:Connectink|Connectink]]

Today's XKCD is good but it looks like the omitted the first Google suggestion when you begin to type "Why does " Go to google and begin to search that... Dont' see it in today's comic. {{unsigned|Glitch}}
:Google's suggestions can vary from user to user. At its most benign, this can be location based. For example, in Seattle, when I type "washington", I get suggestions related to Washington state and not the District of Columbia. At its most sinister, these suggestions can be based on what Google perceives your political beliefs to be. Try typing "gun" into Google. Did you get "gun show" or "gun control?"[http://dontbubble.us/ More info here.] --[[User:Rael|Rael]] ([[User talk:Rael|talk]]) 14:00, 28 August 2013 (UTC)
::How odd. I got gunbroker, and then as soon as I typed space, I got gun control as well. [[Special:Contributions/97.87.12.114|97.87.12.114]]
::: WHY do people complain about this? As long as you're going to get into a debate, in an open minded manner, and are going to critically evaluate the strength of arguments presented (regardless of source), then your starting inclinations shouldn't matter!

::: Moreover, the general internet user is only searching for zeitgeist terms so they know what websites to quote on a Facebook status, so that they can pat themselves on the back. Repeat for next topic.

::: Personalised results keep you comfy in your happy bubble.

::: In any case, the "fix" is simple. Enable do-not track requests, private browsing, or connect through proxies (Given the IPv4 saturation, most people are likely configured to have dynamic IP addresses anyway). If you're concerned about geographical location based filtering, just switch the domain name that you search on! [[Special:Contributions/220.224.246.97|220.224.246.97]]

Why doesn't Queen Anne count as a "woman who reigned as queen in her own right"? --[[User:Nick Douglas|Nick Douglas]] ([[User talk:Nick Douglas|talk]]) 21:50, 2 September 2013 (UTC)

----
Today's Comic was brought to you by the grep "why"''!'' [[Special:Contributions/98.195.202.130|98.195.202.130]] 18:24, 27 August 2013 (UTC)

It seems that Randall is confused about the meaning of life. All the questions he asked begin with why. I like what happens when you type "where is"... I got "where is chuck norris". --[[Special:Contributions/97.87.12.114|97.87.12.114]] 11:41, 30 August 2013 (UTC)

Talk:1259: Bee Orchid

2013-09-02T17:50:00Z

Nick Douglas:

[[First]]! The act of telling someone not to jinx something causes the jinx you're trying to prevent. [[User:gijobarts|gijobarts]] ([[User Talk:gijobarts|talk]]) 07:02, 2 September 2013 (UTC)

I had thought all the worker bees were female, and all the male "drones" stayed in the hives. The Wikipedia says that isn't true for all species. [[User:gijobarts|gijobarts]] ([[User Talk:gijobarts|talk]]) 07:15, 2 September 2013 (UTC)

[https://en.wikipedia.org/w/index.php?title=Ophrys_apifera&oldid=571187022#Reproduction Wikipedia on the reproduction of Ophrys apifera]:
:It is the only species of the genus Ophrys which preferentially practice self-pollination. The flowers are almost exclusively self-pollinating in the northern ranges of the plant's distribution, but pollination by the solitary bee Eucera occurs in the Mediterranean area. In this case the plant attracts these insects by producing a scent that mimics the scent of the female bee. In addition, the lip acts as a decoy as the male bee confuses it with a female. Pollen transfer occurs during the ensuing pseudocopulation.
:Bees in the past have promoted the evolution of bee orchids. Male bees, over many generations of cumulative orchid evolution, have built up the bee-like shape through trying to copulate with flowers, and hence carrying pollen.
[[User:gijobarts|gijobarts]] ([[User Talk:gijobarts|talk]]) 07:36, 2 September 2013 (UTC)

:A colony of ophrys apifera was discovered a few months ago.[http://www.elperiodic.com/torrent/noticias/254352_serra-perenxisa-disfruta-categoria-microrreserva-flora.html (Spanish)]. Probably not related.
:[http://www.nguoiduatin.vn/nhung-ky-hoa-di-thao-quai-la-nhat-the-gioi-a98176.html This page (Vietnamese)] has an excellent photo of an ophrys apifera, along with other strange-looking plants. You can see how it looks like bees in that photo. [[User:gijobarts|gijobarts]] ([[User Talk:gijobarts|talk]]) 07:50, 2 September 2013 (UTC)

Was there once another bee that pollinated it in more areas, or did the eucera once populate more of the world, or has the flower expanded where the bee has not followed? [[User:gijobarts|gijobarts]] ([[User Talk:gijobarts|talk]]) 08:47, 2 September 2013 (UTC)
:Eucera is common all over Europe. But only the Southern bees recognize the plant. It may be the northern plants started selecting for a different bee that went extinct, or Eucera got ahead of the arms race in Europe or that self-pollination is more effective for now or some other reason entirely. [[Special:Contributions/96.251.85.48|96.251.85.48]] 15:41, 2 September 2013 (UTC)

The Axe body spray gag is particularly relevant, since the ad's depiction of a woman, like the flower, is another imitation of real females of a species meant to draw males of the species through deception. [[User:Nick Douglas|Nick Douglas]] ([[User talk:Nick Douglas|talk]]) 17:50, 2 September 2013 (UTC)