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Instead of tossing around a potato that is too warm to handle, throw
around one at cryogenic temperatures. Last one to get frostbite wins.
[link]
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Surely 2nd thermo will thaw the spud before frostbite gets
anybody. I mean, the thermal mass (if that's the right term) of
one 100g potato is about one seven-hundredth that of a human.
At most 293 degrees of warming will bring the potato to room
temperature. This process will lower the human's temperature by
one seven-hundredth of 293 degrees, so, less than three
centigrade - and that's assuming only one player, no additional
heat from the human metabolism during play, and no ambient
warming of the potato. |
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I suppose frostbite's only chance would be to lower the
temperature of a handful of blood by forty degrees in less time
than it takes the heart to replace it with a different handful. |
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For throwing/juggling a hot potato, you could keep it
hot by blasting it with a beam of microwave radiation
while it's in the air. Thus, every time you catch it,
it'll be slightly hotter than when you threw it. |
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You can certainly get localized frostbite by handling things straight out of a -80°C freezer without gloves for too long. |
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However, plastics aren't a much of a danger (their thermal mass and thermal conductivity are too low). It's mainly glass and, particularly, metal that will cold-burn you. |
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A very cold potato might give you problems if you held it for too long, since it's mostly ice (fairly high heat capacity, fairly high thermal conductivity). |
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