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In this 3D-printed sculpture, how does the ball defy gravity and roll uphill? [1]

['David Pescovitz']

Date: 2022-07-28

I suggest pausing at 15 seconds in to come up with your angle on how you think this works.

As MC Escher said, "Are you really sure that a floor can't also be a ceiling?"

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[1] Url: https://boingboing.net/2022/07/28/in-this-3d-printed-sculpture-how-does-the-ball-defy-gravity-and-roll-uphill.html

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