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Birdwatch Note Rating

2024-02-04 16:45:45 UTC - HELPFUL

Rated by Participant: D1E4FFBD4ACC396374212D2D77EF2601074835DABD698341263F4C5F1F009329
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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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