This video of a man dropping a stack of neodymium magnets down a thick-walled section of copper pipe will make you say "F**king magnets, how do they work?" once again.
It's a known principle. Passing rare Earth magnets between non magnetic metals will actually slow them. They used this on a Discovery show once to create an emergency evac elevator with 0 moving parts.
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It's a known principle. Passing rare Earth magnets between non magnetic metals will actually slow them. They used this on a Discovery show once to create an emergency evac elevator with 0 moving parts.