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Why is ice slippy?

Host_Ryan - One Show team | 15:15 UK time, Friday, 16 January 2009

Can't see the film? Watch it here.

There's hard ice, soft ice, slow ice... In his fascinating short film, The One Show's Marty Jopson says scientists can't agree on why ice is slippery.


Marty says that there are three popular theories about what allows skates to skate; friction, pressure and vibrating molecules!


To me, the vibrating molecules explanation sounds convincing. But tell us your theories, please. Why is ice slippery?

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