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There's been so much discussion of magnets, I have to add my question to
the mix.

I'm looking for a source for a large "U" shaped permanent magnet for the
magnetic sand exhibit.

See http://www.exploratorium.edu/xref/exhibits/black_sand.html  if I'm
not making myself clear.

I've contacted a few companies in our area that make magnets, but have
not found one that  has these.

Any help would be appreciated.

Thanks,

Ben Randell
Program Specialist
Science City @ Union Station
Kansas City, MO

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