How to Defy Gravity with a Rare Earth Magnet and a Copper Pipe
YouTube user JamesRB1995 demonstrates what happens when a powerful neodymium magnet is dropped down a copper pipe: the magnet drops in bizarre slow motion, as if defying gravity. The phenomena is caused by electrical eddy currents (this BBC science site explains the copper pipe magnet experiment in detail).
via Neatorama
E.D.W. Lynch
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