Michael Faraday was the first to realize that the shape of electromagnetic field lines is extraordinarily expressive of their dynamical effects. We can understand intuitively many things about the forces transmitted by the fields by looking at the topology of the field lines. This is especially true when the field lines are animated. This NSF-funded site has many examples of EM field lines.
%0 Electronic Source %A Belcher, John %T Teaching Electromagnetism Using Advanced Technologies %V 2014 %N 8 March 2014 %9 video/quicktime %U http://web.mit.edu/jbelcher/www/anim.html
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