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It can be done at all with a static arrangement of magnetic fields, though? Ooh.


Isn’t that those floaty spinning desk toys are?


You mean the ones with a DeLorean or whatever? Those are powered closed-loop-control devices. Or the spinning tops (Levitron etc.?) Those are dynamic and fall down when they stop spinning.


Those usually use active electromagnets, which also bypass the preconditions of Earnshaw’s theorem.




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