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plain old water works great - and easier to clean off people, rugs, pets,
etc.

one of the nicest ones i saw came from science museum of minnesota.  had an
open tank and used a small burst of air to generate a wave point.

we also had someone how developed a prototype.  just a shallow tank on top
of a overhead projector.  we used a turkey baster to initiate the ripples.
one of the simplest, most elegant solution i ever saw.  think he was playing
with a little hand operated cam device to initiate horizontal waves when he
retired or moved onto something else (hard to remember which!)

Jeff Courtman

artspace in the West Edge
710 Texas Street
Shreveport, La  71101
318-673-6535

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