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A comment on Naïve Math: The Mendocino Motor and Earnshaw's Theorem. Parent comment

Re:Naïve Math: The Mendocino Motor and Earnshaw's Theorem by dubya on Tuesday January 22, 2019 @03:59PM (#18972398)
The field is not static when energized. The hanging ones are not too hard to make with a Hall effect sensor and an electromagnet. This is a good explanation:

https://www.kjmagnetics.com/blog.asp?p=electromagnetic-levit...

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Re:Naïve Math: The Mendocino Motor and Earnshaw's Theorem by mcguire on Tuesday January 22, 2019 @04:43PM (#18972852)
Neat. Now I am impressed.
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