#ice-slipperiness

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fromWIRED
4 hours ago

How to Use Physics to Escape an Ice Bowl

I don't know who invented this crazy challenge, but the idea is to put someone in a carved-out ice bowl and see if they can get out. Check it out! The bowl is shaped like the inside of a sphere, so the higher up the sides you go, the steeper it gets. If you think an icy sidewalk is slippery, try going uphill on an icy sidewalk. What do you do when faced with a problem like this? You build a physics model, of course.
Science
fromWIRED
1 week ago
Science

No One Is Quite Sure Why Ice Is Slippery

A thin liquidlike surface layer lubricates ice and multiple competing hypotheses—pressure melting, frictional heating, and others—have been proposed to explain its formation.
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