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On Mon, 6 Jul 2009, chuck britton wrote:
On Jul 6, 2009, at Jul 6(Mon) 1:43 , Jack Uretsky wrote:
Strictly speaking, there is no magnetic-electric equivalence. A
field that is purely magnetic in some reference frame can never be
transforme ( by a L-transformation into one that is purely
electric, and vice-versa.
Regards,
Jack
Feynmann certainly leaves the impression that one can.