matthen:

Disks moving in a square grid trace out an interesting pattern as they pass over a rotating wheel.  Some traces appear to go towards the centre only to be flung back out, in some cases forming a sharp corner. A few of the traces form loops, as if there was also a force acting sideways rather than outwards.  This demonstrates how the Centrifugal and Coriolis ‘forces appear to affect the motion of objects in a rotating frame. [making of video (new)] [more] [code

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