What Makes This Disc Spin?
Channel: bornach
Date: 2021-09-11

A cardboard cube causes a cardboard disc to spin when brought near it. The direction of spin depends on what symbol is shown on top of the cube.


What is inside the cube and under the disc?


It there a battery powering a tiny DC motor?
Is there a tilt switch in the cube with an infrared transmitter?

Steve Mould also made a version of this toy and explains what makes it spin
https://www.youtube.com/watch?v=JX5o_Eo_Ork

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