hi a most interesting news item on nz tv..An elderly gent. (90s) has got a device where he inserts a sphere into a large tumble of water and after a short period the warter boils..he says its done by
Okay Rick on ultrasonics...Had a practical experience with that with the break up of kidney stones by ultasonics...Called here the lithotrypsey machine or name like it....they zerode.. in on my kidne
George, ultrasonic waves are "shockwaves" (just like sound, only at higher frequency) that change the density of the medium. A complete different mechanism than electromagnetic waves. If you add ener
Okay Rick on ultrasonics...Had a practical experience with that with the break up of kidney stones by ultasonics...Called here the lithotrypsey machine or name like it....they zerode.. in on my kidn