Half a croissant, on a plate, with a sign in front of it saying '50c'
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Professional croissant on closed course. Do not attempt.

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Slow-Motion Space Pee Fountain

No, not a fountain of pee
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This is a regular water fountain of minimal design with the only characteristic design feature being that the several spouts of water are rifled the way pee is when it exits the urethra. (See linked rifled urethra idea.) so pee seems to come out in a vaguely helical stream, so imitate and exaggerate this using materials science and experimenting with different shapes and sizes to optimize the interest factor. You use more water but you get crazy interesting fountains.

(Amended to be slow-motion space pee fountain, limited in size to 6 inch spouts or so and moved to space to take advantage of gravityless environment. So this would be a fountain that takes advantage of and explores the possibilities provided by the surface cohesion of water)

JesusHChrist, Jul 06 2015

Rifeled Urethra Rifled_20Urethra
[JesusHChrist, Jul 06 2015]


       There is a problem with this, but it's only basic physics so feel free to carry on.
MaxwellBuchanan, Jul 06 2015

       Just don't do it in a public place.
8th of 7, Jul 06 2015

       What about fountains A through O, and Q through Z ?
normzone, Jul 06 2015

       Come to think of it, based on 21quest's comment on the rifled urethra idea, maybe this would work best on a relatively small scale at a pressure similar to urinary pressure. If the stream starts to separate into turbulent chaos at 6 or 7 inches then maybe the forces that hold that interesting helical structure together in the first 6 inches of the stream would only ever work at that scale. Maybe it is surface tension. And it is interesting to think what kind of effects could be gained in space.   

       Ah, slow motion space pee fountain.
JesusHChrist, Jul 06 2015

       //maybe the forces that hold that interesting helical structure together in the first 6 inches of the stream would only ever work at that scale. Maybe it is surface tension.//   

       I'm pretty sure you can't create a helical stream, over any distance at all. In fact, I will wager [8th]'s Blue Peter Badge that you can't.
MaxwellBuchanan, Jul 07 2015

       What about with a rotating spout?
ytk, Jul 07 2015

       That would be cheating. Any one bit of water would still travel in a straight line.   

       A truly helical stream would look stationary, in the same way that you can't see that a bolt thread is moving as you turn the bolt.
MaxwellBuchanan, Jul 07 2015

       You could create the illusion of the stream being stationary by using a total internal reflection strobe light.
ytk, Jul 07 2015

       Change the fluid to a ferrofluid. Act upon it with some highly-tuned magnetic waveform.   

       Robert is your mother's brother.
RayfordSteele, Jul 07 2015

       Freeze the liquid as it emerges from the spout.
pocmloc, Jul 07 2015


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