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Birdwatch Note Rating

2024-02-04 20:14:45 UTC - HELPFUL

Rated by Participant: 6DCB6DD6F89D3251541934A8A5776492E087F99384334E1B2F3EF0B1CA0AB71B
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Original Note:

Cars can never be powered this way. It is a matter of symmetry, as two static magnets will have an equal pull in both directions. This video is done with a toy car that is powered by being retracted. https://physics.stackexchange.com/questions/17177/why-doesnt-this-perpetual-motion-machine-using-magnets-work#17179

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