Wednesday, October 19, 2011
[youtube]http://www.youtube.com/watch?v=Ws6AAhTw7RA[/youtube]
This is super cool. It is very tempting to imagine magnetic field lines as being physical wires, the superconductor being a semi-permeable substance through which the mathematical wires can be forced, but not so heavy as to drag itself through them, even flying around the track.
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