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comment by mike
mike  ·  1605 days ago  ·  link  ·    ·  parent  ·  post: Hubski Physics Quiz: the monkey's wheel

Awww... don't post spoilers! It's fun to think about it and argue!

I would have guessed that it didn't move, for every centimeter the top wheel turns the bottom wheels turn in the opposite direction one centimeter -- the different diameters shouldn't matter because it's the circumference of the wheels that are moving.

Obviously I'm wrong. And the video totally blows my mind!