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Birdwatch Note Rating

2024-02-04 16:13:20 UTC - HELPFUL

Rated by Participant: 47521B31B63A8909B8C3D7D2E41A2053CBDBE5AB162794455B370D47977E01C8
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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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