Half a croissant, on a plate, with a sign in front of it saying '50c'
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Giant Fart Molecule

 (Formerly tetrahedral pyramid) Triumph over bilaterality
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Make a giant tetrahedral pyramid in the shape of a methane molecule, in the style of the old pyramids, out of stone, to represent the triumph of (f)art over nature, or engineering over biology, levity over gravity, or biology over good taste, or something like that.
—JesusHChrist, Jul 04 2013

Global methane levels are rising http://en.wikipedia.org/wiki/Methane
[JesusHChrist, Jul 05 2013]

(?) Baked https://nl.wikipedi..._Gasmolecule_01.JPG
[JesusHChrist, Jan 25 2016]

Proper link to that image https://commons.wik..._Gasmolecule_01.JPG
[notexactly, Jan 26 2016]

[link]






       I'd buy one. I remember being quite shocked and disappointed when I realized that the pyramids were square-based.   

       On the downside, though, furnishing a triangular floorplan is always a nuisance, and you have tight corners that are harder to hoover into.
—MaxwellBuchanan, Jul 04 2013
   

       Corners harder to hoover = good excuse, saves having to hoover.   

       Furnishing - use only furniture with an equilateral-triangular (or geometric subdivision thereof) footprint.
—pocmloc, Jul 04 2013
   

       Shape it like a Methane molecule to represent the triumph of chemistry over the arts.
—pashute, Jul 04 2013
   

       A 250ft fart molecule?
—MaxwellBuchanan, Jul 04 2013
   

       The triumph of farts over gravity.
—JesusHChrist, Jul 05 2013
   

       Start smaller. Maybe a subatomic farticle.
—MaxwellBuchanan, Jan 25 2016
   

       Could use the pharton, a subatomic gas farticle.
—whatrock, Jan 25 2016
   

       I've heard it isn't the methane which makes farts smell and a lot of fart is nitrogen and carbon dioxide.
—nineteenthly, Jan 27 2016
   

       //I've heard it isn't the methane which makes farts smell and a lot of fart is nitrogen and carbon dioxide.//   

       It's obviously not the methane, since methane is odourless (c.f. 'natural gas', which has a scent added to ensure leaks are detected).
However, they're well known to be combustable, which neither nitrogen nor carbon dioxide are. The gas responsible is widely assumed to be methane - and this may be true, at least in some animals.
Nevertheless, I've heard it claimed that the flammable component is sometimes hydrogen. Some bacteria can produce this under anaerobic conditions, so it's not implausible.
The obvious experiment is to collect some of the off-gas in a test-tube, ignite with a lighted spill and see whether it yields a squeaky pop.		   

       This still doesn't give an explanation of the aromatic properties of the gas. I suspect that more than one chemical is involved in varying quantities. More research into the pharticles involved is clearly needed.
—Loris, Jan 27 2016
   

       The aromatic culprit of a fart is the hydrogen sulfide pharticle, H2S, perhaps a (f)artistic addition to the CH4 molecule display.
—whatrock, Jan 27 2016
   

       I would expect it to be hydrogen sulphide sometimes and at other times additional substances which make stools smell. It could only really be traces of the former though or they would be highly toxic and also destroy the olfactory sensors.
—nineteenthly, Jan 27 2016
   

       Perhaps to celebrate beans over weenies?
—Steamboat, Jan 27 2016
   
      
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