A weird experiment

I did no tighten the shaft well enough. In the middle of the experiment the magnets stopped spinning. Notice the iron was not accelerated. Two of the three aluminum strips were thrown. So then what the spinning magnets can people used for. It’s a fine magnetic clutch that doesn’t wear out because no friction contact. That has application on electric bicycles. No peddle start.

All It takes is an simple hollow aluminum tube  with the magnets spinning inside. By removing the iron the motor smoothly accelerates to top speed.  Adding a flywheel. To the motor shaft increases torque.

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