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Old 10-26-2018, 03:26 AM
bistander bistander is online now
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Join Date: Apr 2015
Posts: 1,587
Hope John doesn't mind

The vid, first demo, is interesting.
Looks like the homopolar principle of Faraday disc.

Self's video: The iron cylinder is not magnetized so brings no magnetic field to the experiment. The magnet obviously does have a magnetic field, which is static. The rotation of the liquid occurs due to Lorentz forces on the charges moving in the liquid along with the bubbles in that static magnetic field.


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