Birdwatch Archive

Birdwatch Note Rating

2024-02-04 22:46:57 UTC - HELPFUL

Rated by Participant: 31F59EE225ADE3C5556C66EB913801F11A3A03B2709050250AA5AD70C4F8408A
Participant Details

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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