The hand is like a red-hot poker to the liquid nitrogen, but an insulating layer of nitrogen gas forms- a phenomenon known as the Leiden-frost effect- keeping the hand safe and warm for a fraction of a second.
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that is extreme o.o.
he is like sticking it in and pulling it out for dear life.
It's the Leidenfrost effect. Works for stuff which is really hot too. Like molten lead.
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