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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 kidney
stones and smashed them into smaller pieces ..i kept awake and watched the
procedure a weird thing but it works well....73s george zl3pn
----- Original Message -----
Sent: Thursday, January 31, 2008 9:24
PM
Subject: Re: LF: water heated by
soundwaves
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 energy
into the water, no matter how, it will heat and eventually boil. Nothing to be
stunned about.
Ultrasonic waves have been used for ages to heat stuff. Big
advantage is that the energy can be focused to one spot to get local
heating.
Ultrasonic ovens It has also been proposed as "save alternative"
to microwave ovens, but with little success as it turned out to be very
expensive to build an oven that would withstand the vibrations.
73, Rik
ON7YD - OR7T
At 02:47 31/01/2008, you wrote:
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 bye ultra sonics...It has stunned
professors and science standards...he wont let on much...thats the million
dollar question just ??? i got a feeling the highfreqency audio electric
current is heating the water ..BUT IS IT....george
zl3pn
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