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submitted 11 months ago by simple@lemm.ee to c/videos@lemmy.world

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[-] CommationCerebrole@jlai.lu 10 points 11 months ago

There's one extra-rotation from an external perspective due to the revolution of one around the other. So the formula is r1 / r2 + 1.

This extra-rotation doesn't appear from the point of view of the circles, or if you consider the circles as two stationary gears

this post was submitted on 01 Dec 2023

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