What Happens When You Drop A Magnet Through A Copper Tube?
Geege Schuman stashed this in Science Too
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Sometimes science underwhelms.
Okay, this is pretty cool.
In sum: the magnet induced a current in the copper pipe, which in turn produced a magnetic field. The direction of this current then opposed the change in the magnet’s field, resulting in the magnet being repelled and thus falling more slowly. Neat.