yes it is an interesting project the old chap has been testing...NO mention
of sun light being used A Cable is used up thru the conduit pipe and into
the sphere...as he places the spere in the water vessel no rise of water
height..this would mean the water has gone inside the sphere ball
thingie...any electics regardless of frequency would be in contact
withwhatever hes got inside....any flow of electrical current heats water
the same as having a heater element...old wizard zip water heaters just used
probes in water for heating...didnt work well in southcant because of
scaling of probes....hope he takes care with it and runs it thru isolator
transfrmr...hope iam still like him at his great age george zl3pn
----- Original Message -----
From: "Doug McNeill" <[email protected]>
To: <[email protected]>
Cc: <[email protected]>
Sent: Thursday, January 31, 2008 4:40 PM
Subject: Re: [amateur-radio] water heated by soundwaves
gboorerzl3pn 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
Sounds exactly like a magnifying glass in circumstances where the
refractive indices of the mediums or "reverse" on what people usually
expect.. Calculate the difference in the refractive indices of water and
the glass he's used. For a wide enought spread, the focal point moves
outside the glass sphere........ so the solar energy is concentrated on a
spot somewhere in the water close to the sphere. That's where the heat
energy is focussed, and so that's where there will be "flash conversion"
to steam.
Yes, its is most likely that there's cavitation as it is flashed to
steam..... and probably even noise (acoustic energy resulting from the
inefficiencies of the process) But ultrasonics is strictly the process of
inputting mechanical energy.
What we have here,, however, is good old photons, at wavelengths between
440 and 770 nanometres (give or take a yard)
Don't believe it? OK, what's the possible source of acoustic energy to
drive an "ultrasonic" device?
He's using sunlight, its a photon machine.
Doug zl2aov
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