The Strange and Unexpected Reason Ice is Slippery

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PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY • ↓ More info and sources below ↓ • Thank you to Nord VPN for supporting PBS. For more information go to: https://nordvpn.com/iotbs and use code: iotbs • We’re on PATREON now! Join the community ►► / itsokaytobesmart • SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub • I’m guessing you’re pretty familiar with ice. We use it in our drinks, slip on it, skate on it, worry about climate change melting it. But have you ever stopped to really think about this stuff? The freezing and melting of water affects so much of our world. It’s ice crystals in thunderclouds that create lightning. Ice is powerful enough crack boulders, float stones, and alter entire landscapes. Ice is such a common substance, you'd think we'd know everything about it by now. But it has some secrets and weird properties we’ve only just begun to figure out. One question about ice that's, still not totally answered, is one of the most obvious: why is ice slippery? It's a more complicated answer than it seems! • • References: https://sites.google.com/view/why-is-... • Special thanks to our Brain Trust Patrons: • AlecZero • Bob Rosset • Brent M. • Diego Lombeida • Ron Kakar • • ----------- • Join us on Patreon! • / itsokaytobesmart • Twitter • / drjoehanson • / okaytobesmart • Instagram • / drjoehanson • / okaytobesmart • Merch • https://store.dftba.com/collections/i...

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