Lightning inside cavitation bubble
amdx
Ran across this while surfing,
"When an ultrasonic wave passes through a liquid medium, containing
microscopic gas inclusion, it can produce cavitation. At the boundary of
a cavitating zone, a voltage appears as a effect of the collapse/rebound
cycle of the cavitation bubbles."
The voltage causes a spark in the vapor of the bubble.
One man's conclusion is that sonoluminescence is caused by the spark.
"In (cavitation) bubbles is vapour. It is like (a) small cloud. Big clouds
big lightning,
small clouds small lightning"
David A. Smith
This is a pdf that describes measuring voltage in liquid under ultrasound.
http://th-www.if.uj.edu.pl/acta/vol37/pdf/v37p2919.pdf
The voltages are low, but the bubbles are small.
Just thought I'd pass it along.
Mike
amdx
this was supposed to be sent elsewhere.
Mike
"amdx" <am...@knology.net> wrote in message
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Szczepan Bia�ek
"amdx" <am...@knology.net> wrote
news:9a066$4aca68e4$d8baf330$78...@KNOLOGY.NET...
> Sorry,
> this was supposed to be sent elsewhere.
> Mike
Where?
S*
amdx
"Szczepan Bia�ek" <sz.b...@wp.pl> wrote in message
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>
> "amdx" <am...@knology.net> wrote
> news:9a066$4aca68e4$d8baf330$78...@KNOLOGY.NET...
>> Sorry,
>> this was supposed to be sent elsewhere.
>> Mike
>
> Where?
> S*
To a physicist friend with 25 years of experience in ultrasonics.
You have my permission to read it :-)
Mike
Szczepan Bia�ek
"amdx" <am...@knology.net> wrote
news:951fa$4acb5249$18ec6dd7$24...@KNOLOGY.NET...
You missed the most important: " We know that V = Q/C. It means that at
evaporating the voltage drops. At
condensation grow up."
Water is the insulator. The only way to change electrons (to equalise the
voltages) are sparks.
It is interesting that things which were clarified centuries ago are
described in Wiki totally wrong.
It apply to cavitation, atmospheric electricity, piezoelectricity,
ferroelectricity and simmilar.
S*
>
>