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RE: OT-fundamentals in sound (was singing bowls)





> This discussion made me think of what a bowl would sound like and 
> what frequencies could be generated by making some sort of pneumatic 
> device that would hold the bowl (small suction cup at the bottom?), 
> and spin a dowel around the lip, and you could vary the speed of 
> rotation, and the pressure applied to the bowl.

This is very much like the instrument that Benjamin Franklin 
invented...the Glass Armonica.

There is a great picture of it here:
   http://www.glassarmonica.com/
and a great sound file here:
   http://www.crystalmusic.com/

                 Mike McGary