Bret wrote: > ...So how small a bowl is too small to be (physically) able to create > the > low freq, loud (vague terms) sound we hear from the bowls, with the > amount of energy we apply to the bowls... just to throw in a completely non-scientific anecdote; my wife and i got married in joshua tree. our wedding took place outdoors, in a natural ampitheatre created by millions of years of geologic upheaval (hidden valley, if anyone out there knows it). to make a long story short, we borrowed several tibetan singing bowls (as well as some very large and heavy swiss cowbells- another great sound source for anyone interested), and convinced a few friends to clamber several hundred feet up into the boulder-masses, with the intent of creating an ambient sonic backdrop for the ceremony. the singing bowls were extremely audible (although the cowbells had them beat for sheer volume), and it seemed clear that, over the distance of several hundred feet, we were hearing some very low fundamentals. this, of course, proves nothing (i did say it was completely anecdotal:-). lance g. ps, it rained/hailed heavily that morning, and cleared 15 minutes before the wedding began. the sound of receding desert thunder coupled with the random striking of hidden bells and the perfume of fresh rain on rocks & desert flowers was quite magical...