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The ingredients are always the same when building the homopolar motors: neodymium magnets, aluminum foil, copper wires and batteries. This time even some ferromagnetic coins.
They are all very simple to do, so try it 🙂
These are the magnets used:
https://www.supermagnete.com/S-20-10-N
https://www.supermagnete.com/S-45-30-N
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