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Author Topic: Sonoluminescence  (Read 11963 times)

Offline mikestocks2006

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  • Sr. Member
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Sonoluminescence
« on: June 03, 2006, 01:02:03 AM »
An interesting phenomenon, that may very well tie into the OU discoveries.

Mechanical excitation of water using supersonics. Produces light!!! Some claim HUGE power generation due to the short time duration -picoseconds- Temperatures from 10,000 degrees Celsius, and possibly a temperature in excess of one million degrees Celsius. (see more refs bellow) What is very interesting is the following:
The phenomenon starts taking place according to this chart ( http://www.sonoluminescence.com/sl_data4.gif) around 28755 Hz looking at the charts published with peak outputs just a bit higher 28815Hz. (Other sources indicate frequencies closer to 25kHz)
http://www.sonoluminescence.com/

The interesting part is the frequencies were the Stanley Meyer Water cell also seems to operate the best!

Take a look 4th high Subharmonic frequency.  The 4th is just about the same where the phenomenon starts. I wonder if a cell is designed to combine these two phenomena, what would be the result, e.g. using both same resonants, and/or varying the phases etc.!!!

The numbers are just too close, or it's a heck of a coincidence?

"There are two primary frequencies that produce the best results. They are: 14,372 Hz and 43,430 Hz. The former is about 50% more efficient, but it seems that just about any frequency between 9 KHz and 143,762 KHz works quite well. (1) This is because the nature of the wave form ( a spike ) is rich in harmonics and one of them is bound to be close to one of the two primary frequencies.

43430 Hz                         143762 HZ
SUBHARMONIC           SUBHARMONIC
1st  21715  HZ                 1st  71881  HZ
2nd  14476.67 HZ             2nd  47920.67 HZ
3rd  15517.5  HZ              3rd  35840.1  HZ
4th  8686                           4th  28752.4  HZ

*1500 VOLTS IS THE MINIMUM REQUIRED FOR MOLECULAR RINGING TO BEGIN. "

http://www.rexresearch.com/meyerhy/meyerhy.htm

More on Sonoluminescence
http://www.techmind.org/sl/
http://www-phys.llnl.gov/N_Div/sonolum/    (temp refs)
http://www.phschool.com/science/science_news/articles/star_in_a_jar.html

How to make your own?
http://physics.open.ac.uk/~swebb/ach.htm

sonofusion million degrees on the desktop
http://www.newscientist.com/article.ns?id=dn4741
http://www.letu.edu/people/garydeboer/bubble-fusion.pdf

Out of curiosity Anyone with Tesla coils experience, what kind of frequencies do they operate best?




Free Energy | searching for free energy and discussing free energy

Sonoluminescence
« on: June 03, 2006, 01:02:03 AM »

Offline IcyBlue

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Re: Sonoluminescence
« Reply #1 on: June 03, 2006, 11:27:19 PM »
The phenomenon starts taking place according to this chart ( http://www.sonoluminescence.com/sl_data4.gif) around 28755 Hz looking at the charts published with peak outputs just a bit higher 28815Hz.
without the transfer characteristic of the transducer this chart is worthless. US-Transducers are hardly linear, they can have a awefull characteristic with lots of resonance frequencies. You just can not rely on that the sound energy was constant when the frequency was changed.

Quote
"There are two primary frequencies that produce the best results. They are: 14,372 Hz and 43,430 Hz.
Keely: 42,8 kHz ???

Quote
Out of curiosity Anyone with Tesla coils experience, what kind of frequencies do they operate best?
depends on how they are designed ;)

Offline mikestocks2006

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Re: Sonoluminescence
« Reply #2 on: June 04, 2006, 05:44:19 PM »
The phenomenon starts taking place according to this chart ( http://www.sonoluminescence.com/sl_data4.gif) around 28755 Hz looking at the charts published with peak outputs just a bit higher 28815Hz.
without the transfer characteristic of the transducer this chart is worthless. US-Transducers are hardly linear, they can have a awefull characteristic with lots of resonance frequencies. You just can not rely on that the sound energy was constant when the frequency was changed.

Quote
"There are two primary frequencies that produce the best results. They are: 14,372 Hz and 43,430 Hz.
Keely: 42,8 kHz ???

Quote
Out of curiosity Anyone with Tesla coils experience, what kind of frequencies do they operate best?
depends on how they are designed ;)


Thanks for the feedback.
Which one is the more accurate one? the Keely at 42.8KHz or the one posted at rexreserach  43.43KHz or maybe they are close enough within some measurement error? These two are within 1.5% of each other approx.

Maybe some of the members here have a the ability and setups to put something like this together and report back some results?
How to build one some info:
http://www.geocities.com/hbomb41ca/sono.html

here is some more, making look easy,
"But it's true. The extreme energy present in the experiment has been compared by researchers to processes occurring in the sun.
The fact that Hough and Farley received nearly unparalleled results on their first try was astounding.
It's like the Wright brothers coming up with the Boeing 737 jetliner for their first flying airplane."
http://www.journalnet.com/articles/2004/03/15/news/local/news01.txt

Free Energy | searching for free energy and discussing free energy

Re: Sonoluminescence
« Reply #2 on: June 04, 2006, 05:44:19 PM »
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Offline Kirk

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  • Posts: 11
Re: Sonoluminescence
« Reply #3 on: July 17, 2006, 04:09:39 AM »
Barium titanate is very efficient but output is not as predictable as nickel driven magnetostrictively. Nickel is lower efficiency though.
If I were fabricating an ultrasonic drill I think nickel would be a good choice.

Offline IcyBlue

  • Jr. Member
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  • Posts: 62
Re: Sonoluminescence
« Reply #4 on: July 17, 2006, 12:56:38 PM »
Which one is the more accurate one? the Keely at 42.8KHz or the one posted at rexreserach  43.43KHz
I have no idea. I have done some research with US, but I could not replicate Keelys claims - not that this would surprise me in any way ...

For the sonolumineszence: The frequency is probably not dependent on the water, but on the geometry of the flask. The bigger it is, the lower the frequency. But since sonic pressure goes down with the sonic frequency, smaller diameters (theoretically) should be prefered. But smaller flasks are more stiff and less prone to vibrating than bigger ones. So it is a tradeoff ...

However, sonic excitation is a tricky thing. It might work or not. You need to operate it on the fundamental resonant mode of a sperical resonator. If you don't hit this, then you slip into a higher vibration mode with different pressure patterns and anti phase vibrations. They can cancel each other totally out.

Quote
The extreme energy present in the experiment has been compared by researchers to processes occurring in the sun.
it's a plasma, but rather useless - at least we know no application for.

... but at least simple enought to try a replication ;)

BTW: Finding the sonolimineszence dependency on the frequency is not so easy, because most US transducers are highly nonlinear since they all operate on there self resonant frequency. Although you can detune the input to the transducer, the emitted sonic power changes dramatically. Thus I don't trust such plots until they can assure they actually have had constant sonic (!) power and not just a constant electrical power to the transducer.

Free Energy | searching for free energy and discussing free energy

Re: Sonoluminescence
« Reply #4 on: July 17, 2006, 12:56:38 PM »
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