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Re: Chladni figures...



As I recall, it was Maxwell who figured out why the difference between
salt/sand and lycopdium (thanks) powder....Tom Greenslade, are you
lurking? The lighter lycopdium powder goes to the antinodes because of
the flow of air over the vibrating plate...but I don't recall the details

cheers

On
Mon, 2 Sep 1996, Leigh Palmer wrote:

The plate we have is brass and about a sixteen thick. But bowing it is
a bit of an art. The art is removed if you use a poweramplifier and a
speaker cone to drive the place. I believe Pasco makes such a thing.
Also, I would use sand rather than lacapodium (however you spell it)
powder.

I anodized my plate and dyed it black. I used salt from a shaker. If you
use lycopodium you find the initially surprising result that it migrates
to the antinodes rather than the nodes. You can use this method to
separate a mixture of lycopdium and salt, a nice trick.

Leigh