Talk:Electrostatic levitation

As far as I know "electrostatic levitation" is only possible using feedback circuits which adjust the charges such that the object is kept at the same place. Then it is not exactly static and therefore does not violate Earnshaw's theorem.

Why must "a system of two equally charged coupled toruses" be stable? I think this statement needs a reference.

Stefan.K. (talk) 19:29, 21 November 2009 (UTC)

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