This site features explanations and experiments designed around a series of increasingly more complex issues of magnetism from "What is magnetism?" to "Build your own Gaussmeter" (a device that measures the strength of a magnet).
%0 Electronic Source %A Hoadley, Rick %T Magnet Man: Cool Experiments with Magnets %V 2013 %N 21 May 2013 %9 text/html %U http://my.execpc.com/~rhoadley/magindex.htm
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A related interactive simulation that explores the relationship between a bar magnet and a compass. Users can add a field meter or superimpose the planet Earth on the bar magnet to see the orientation of the magnetic poles.