Birdwatch Note Rating
2024-02-04 19:20:35 UTC - HELPFUL
Rated by Participant: C014C06284C555920D02CCD312393858C445787E2859028049933E0DD73DF0F6
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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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