X-Message-Number: 2001 Date: 21 Mar 93 01:46:23 EST From: JOHN K CLARK <> Subject: CRYONICS Blue Flashes Seth Putterman and Bradley Barber at UCLA found that sound waves can cause a bubble of air in water to change in size from 50 microns to half a micron in less than 400 millionths of a second.This makes a tiny sonic boom that heats the air in the bubble to more than 100,000 degrees,almost 10 times hotter than the surface of the sun. Most of the radiation is in ultraviolet light but some small part is blue.They call this Sonoluminescence. Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=2001