1561: Water Phase Diagram

Explain xkcd: It's 'cause you're dumb.
Revision as of 11:55, 7 August 2015 by 173.245.53.125 (Talk)

Jump to: navigation, search
Water Phase Diagram
Vanilla Ice was produced in small quantities for years, but it wasn't until the 90s that experimenters collaborated to produce a sample that could survive at room temperature for several months.
Title text: Vanilla Ice was produced in small quantities for years, but it wasn't until the 90s that experimenters collaborated to produce a sample that could survive at room temperature for several months.

Explanation

Ambox notice.png This explanation may be incomplete or incorrect: Ethion of scientific detail required.
If you can address this issue, please edit the page! Thanks.

This is a modified version of the phase diagram for water. A "phase diagram" is a chart that shows the states, or "phases", that a substance will be in under various temperatures and pressures. Water's phases are particularly well-studied; on a real phase diagram for water, there are a great many phases listed.

Most people are familiar with three phases of water—solid, liquid, and gas—and with the fact that an increase in temperature will cause water to change from one state to another. The gas and liquid phases ("water vapor" and "liquid water") are quite straightforward; however, there is in fact not one single solid phase of water ("ice"), but a variety of numbered phases ("ice I" through "ice XV" are currently recognized), several of which are divided into sub-categories. Ordinary, everyday ice is known as "ice Ih" ("ice one-h"). Most of the more unusual forms of ice only form under very high pressures.

Randall's phase diagram starts out realistically, though slightly simplified in several ways. For one, it simply uses the name "ice" for the usual form(s). It is focused in on a narrower area than the more complete diagram linked earlier; on that version, the "ice V" region is quite small, and "ice III" is barely visible, whereas both are quite plain to see on Randall's diagram. Lastly, Randall has the pressure scale increase downwards (probably so that the jokes are at the bottom), where most phase diagrams have pressure increase upwards.

As the diagram continues downwards and the pressure increases, the jokes begin. Beyond the moderately high-pressure forms of ice (ice II, III and V), a real phase diagram has ice VI; Randall has "Vanilla Ice" (the name of a white rap/hip-hop artist from the 1990s). Vanilla Ice's biggest hit, "Ice Ice Baby", used samples from the earlier song "Under Pressure", by David Bowie and Queen; accordingly, on Randall's diagram, the "Vanilla Ice" region transitions to "David Bowie & Queen" when it is under (even higher) pressure.

Further references to "Ice Ice Baby" are found in the title text. Near the beginning of the song, Vanilla Ice raps the line, "All right stop, collaborate and listen". The unusual choice of "collaborate" in this line has made it memorable, and the word is used in the title text (in a more typical context). The phrase "survive at room temperature for several months" is likely a reference to "Ice Ice Baby" being Vanilla Ice's only major hit, humorously suggesting he faded out of the public view after a few months of fame. Finally, even the word "sample" may be deliberately chosen as a reference to the sampling of "Under Pressure".

Lastly, another image is faintly visible just below and to the right of the "Water Vapor" label. It appears to be a copy of an actual phase diagram for water from Wikipedia. It is unclear why this image is present in the picture; it may be some sort of hidden message, or perhaps an error.

Related comics

Randall has referenced "Ice Ice Baby" and "Under Pressure", separately and together, on many previous occasions, notably in 159: Boombox.

The what if? that was current at the time of this comic's publication was 138: Jupiter Submarine, which began with an even more fanciful phase diagram: that of a submarine. It also contains a reference to the songs "Under Pressure" and "Ice Ice Baby" in one figure.

Transcript

Temperature
[horizontal axis, increasing in value to the the right]
Pressure
[vertical axis, increasing in value downwards]

[From top to bottom and from left to right...]

Ice
[region alongside to "Pressure" axis covering about half of its length]
Water vapor
[region spanning top-right corner of graph, i.e. higher temperatures and lower pressures]
Liquid water
[region below "Water vapor" and to the right of "Ice"]
Ice II
Ice III
Ice V
[small regions below "Ice"]
Vanilla Ice (ice VI)
[region below "Ice II", "Ice III", "Ice V" and "Liquid water"]
[dashed line with arrows pointing downwards]
David Bowie & Queen
[region below dashed line]


comment.png add a comment! ⋅ comment.png add a topic (use sparingly)! ⋅ Icons-mini-action refresh blue.gif refresh comments!

Discussion

Hidden message

What's up with that square under "water vapor"? Is it just a glitch, or is it some hidden message like in https://xkcd.com/1005/? Nick818 (talk)

I think it is a hidden message, it almost looks like a tiny graph. 108.162.242.27 (talk) (please sign your comments with ~~~~)
It looks like a tiny version of the same graph, but flipped upright so that pressure increases as you go up. (Doing this in the main strip would ruin the "Under Pressure" joke. --Druid816 (talk) 05:19, 7 August 2015 (UTC)
I'd say it's the phase diagram Randall used as a template, see Wikipedia --108.162.229.232 05:28, 7 August 2015 (UTC)
The only thing I can think of is "water + vapor + paper" with the letters being {unique, identical, second, first, identical}. No idea if that means anything. It's probably just a pencil drawing that Randall forgot to remove before publishing. 108.162.216.70 06:45, 7 August 2015 (UTC)
Seems to be the phase diagram from wikipedia. I put a contrast enhanced zoom here and it corresponds extremely well with the wikipedia version (including darker pixels where the blue is). -- 141.101.105.234 13:36, 7 August 2015 (UTC)
I think it might be a reference to the "Full text of the Wikipedia article on pareidolia" of the Pluto comic. --Lokar (talk) 15:26, 7 August 2015 (UTC)
I don't see any square, faded or otherwise, by label "water vapor". 108.162.219.231 13:04, 7 August 2015 (UTC)
Yeah, it's gone now... __rvx 173.245.50.86 00:20, 8 August 2015 (UTC)
What If?

Why no mention of the relation to the current whatif? 141.101.91.91 07:01, 7 August 2015 (UTC)

Title text

Disagree that the title text is definitely in reference to any line in the song, just because it includes the word "collaborate[d]" 108.162.228.17 07:49, 7 August 2015 (UTC)

I'm not happy with the title-text-explanation. In my eyes the joke is that Randall try to make us believe that Vanilla-icecream is ice IV – and they somehow managed in the 90s to let it exists at high temperatures (for us: normal room temp). --DaB. (talk) 11:31, 7 August 2015 (UTC)

I have to disagree for one important reason: (Vanilla) Icecream was produced in high quantities since approx. the 1950's (or even earlier) and not just since the 90's, which is common sense, I think. Imho "Vanilla Ice was produced in small quantities for years" refers more to the fact, that many of Vanilla Ice's tracks consist of different samples of earlier produced songs (such as Under Pressure) or even complete covers (i.e. Play that funky Music). However, Randall might have missed another perfect opportunity for a different joke: Since "Vanilla" is used as expression for "normal" or "trivial" he could have placed it for Ice (I), the "normal" solid water. In that case the Under Pressure reference would have been a bit less obvious, though. Elektrizikekswerk (talk) 12:22, 7 August 2015 (UTC)
Purely as a tangent, ice cream was commonly available in the U.S. in the 1700's, and by the 1800's large silver flatware sets often included (along with other odd specialty pieces like asparagus tongs) sets of ice cream forks. Yes, ice cream was originally "properly" eaten with a fork. Miamiclay (talk) 20:40, 7 August 2015 (UTC)
I thought for sure the intersection of the three was called "Ice-T" 173.245.48.184 13:40, 7 August 2015 (UTC)
Kurt Vonnegut

Surely this comic would have been a perfect opportunity to mention Kurt Vonnegut's fictional Ice-nine? Disappointed in you Randall! Cosmogoblin (talk) 09:42, 7 August 2015 (UTC)

I agree that Vonnegut's ice-nine is a wonderful topic, but since it exists (fictionally) at room temperature and pressure, it complicates this piece. --Tanana (talk) 22:33, 10 August 2015 (UTC)
Opinion

I have to very strongly disagree with the opinion expressed by 108.162.216.173 in this edit, namely that 'pressure scale incresing down isn't so jokes are at bottom, it facilitates being "Under" Pressure - the joke doesn't work any other way.' Being at the bottom along the pressure axis doesn't mean that region is "under" pressure. It's "under" Vanilla Ice. The joke works because it is under pressure, a very high amount of pressure, not because it is geometrically below pressure in any sense (it really isn't). My original text, that pressure increases downwards so the jokes are at the bottom, makes far more sense to me (well, naturally). It's the "reveal". If the jokes were at the top, they'd be read before the average reader had even grasped what the comic was about. But anyway, that's just my opinion; does anyone else have any thoughts? -- Peregrine (talk) 15:07, 7 August 2015 (UTC)

I totally agree with you and have reverted to something similar to the original version. Maybe it could be worded better, but at least that makes sense. --Kynde (talk) 20:15, 8 August 2015 (UTC)
As the editor who changed the wording obviously I disagree. If the axis were arranged correctly the linkage to "Under Pressure" would be far less obvious. ("Over" pressure??!?) I get what you're saying that 'under' pressure has nothing to do with geometry, but it does work typographic arrangement. But I have to question why the reveal is naturally the right assumption, as it would still work just as well with the 'reveal' at the top... maybe it's just kismet. But then again, I think the speculation is overthought in the first place - it's also just as natural that Ice Ice Baby is built on top of Under Pressure - and I've already invested too much time in it. Just MVHO. 108.162.216.173 19:32, 11 August 2015 (UTC)


Sorry, got lost, but I wanted to suggest it's missing Miles Davis at the very bottom. "Birth of The Cool", ya know. 108.162.242.27 21:20, 7 August 2015 (UTC)

Also missing are references to Ice T and "Cold As Ice." [url]http://www.youtube.com/watch?v=_UdXbMyo1rU[/url] —SaxTeacher (talk) 02:27, 14 August 2015 (UTC)

And here I thought it was somehow referencing this http://news.discovery.com/tech/biotechnology/this-ice-cream-doesnt-melt-150831.htm "This Ice Cream Doesn't Melt" Xyzdragon (talk) 19:12, 8 September 2015 (UTC)

"U Can't Touch This" does not also sample "Under Pressure", it samples "Superfreak". The connection between the two is just that they caused similar controversies at about the same time. As soon as I can come up with good wording, I'll edit the explanation. 162.158.255.52 18:06, 28 September 2015 (UTC)


Personal tools
Namespaces

Variants
Actions
Navigation
Tools

It seems you are using noscript, which is stopping our project wonderful ads from working. Explain xkcd uses ads to pay for bandwidth, and we manually approve all our advertisers, and our ads are restricted to unobtrusive images and slow animated GIFs. If you found this site helpful, please consider whitelisting us.

Want to advertise with us, or donate to us with Paypal?