Birdwatch Note Rating
2024-02-05 11:17:31 UTC - HELPFUL
Rated by Participant: 7AA78FD3DE898068E0086D87829CB1E8C70DEB4DE0421EE0C7A63BB6F8523B6E
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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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