charge this under do n’t try out at household , but there is a good and painless way to dip your hand into melted N . The secret ? The Leidenfrost impression , which concisely shield your handfrom -320 ° temps with a level of bubbles .
PopSci’sextremely courageous Theodore Graytrusts in science and tests the phenomenon with his own mitt , coming out unscathed . With his manus in the glacial vat for a rent second , Gray say he “ barely feel the cold at all . ” The principle that keep back him from lose his hand is the same one you spot when water droplet fall onto a whip live skillet — rather than evaporating straight off , they bounce around on a slender layer of steam . And when you adhere your hand into the sub - zero nitrogen — boom — another insistent layer of protective gasoline . Just make certain to draw yourself out as cursorily as you went in , because those bubbles do n’t last long , and frostbite is no play .
Gray say the Leidenfrost effect ( name after German doctor Johann Gottlob Leidenfrost ) should , in theory , protect your hand from a ad valorem tax of liquified booster cable . But , yeah , we ’re not live to pick him for passing on that experimentation . [ PopSci ]
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