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The piscean (or 50's-rocketship) shaped, non-cuboid ice cubes have a line of liquid carbon-dioxide pockets separated by thin ice plugs, inside on the axis. As the plugs melt away one by one, starting with the rearmost, the globules of CO2 evaporate and skooch out the back, propelling the icecube around
the glass and incidentally (re)carbonating the drink.
(At 0 degC, CO2 only requires 5'ish atmospheres pressure to remain liquid, and the ice "skin" of the rocketship is thicker than the sum of the thin icewall separators' thickness)
Something similar.
Rocket_20ice_20cubes
Air instead of CO2. [doctorremulac3, Mar 14 2018]
Phosphine
https://en.wikipedia.org/wiki/Phosphine
"... P2H4 is responsible for spontaneous flammability associated with PH3 ..." [8th of 7, Mar 15 2018]
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[+] but what about butane ? |
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Cast the ice block, cool to -10 C. Drill a shaft. Drop in some liquid butane, drip on water which will freeze instantly. Repeat until shaft filled. |
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As the ice block melts, the same jet effect will occur. Butane boils around 0C, so the pressure in storage will be very low. |
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This is probably the best idea I have read just now. [+] |
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+ and a bonus point for skooch |
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I likey! [+] (Shirley [8th] can come up with a similar idea
incorporating the word 'hypergolic'?) |
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Phosphine/diphosphane blend ... |
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//hypergolic// well, nitrous oxide works too, so there's a start. |
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Farting Fish Ice Cubes sounds a bit painful, and the
idea doesn't specify how you get the Fish Ice Cubes
up there in the first place. |
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