>From: Charles Baker 
>The traditional acoustician's impulse is what is known as a "spark 
gap"...a
>strong current is applied to two sides of a small gap: the current 
leaps the
>gap with a sharp report (caused by the same physics as thunder claps).

I gotta ask... anyone know where to find diagrams of such a thing? It 
sounds like it would be fairly simple to build one.

--PW

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