Sep 30
When a drop of water hits a hot enough pan, it doesn’t instantly boil away. Instead, the drop’s outer layer vaporizes, producing an insulating effect that causes it to skitter across the hot surface. This is known as the Leidenfrost effect, and it can be harnessed for some neat tricks, like the Mythbusters being able to stick their hands in molten lead, or this wonderful science experiment from the University of Bath.
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