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Birdwatch Note Rating

2024-02-04 20:25:51 UTC - HELPFUL

Rated by Participant: CD301FDBA49596E5A19430864F8B7AA78F3040325DC516E19645A7FC0251EC8D
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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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