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Sonoluminescence (cold fusion)?

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Old May 20, 2003 | 05:20 PM
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Default Sonoluminescence (cold fusion)?

http://physicsweb.org/article/news/6/3/4

I read about it in Business Week, and thought it was interesting enough to do a search on it. Looks like the jury is still out on whether this is for real. Any comments?
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Old May 20, 2003 | 06:55 PM
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Cold fusion would solve so much, but I think this is as much crap as the original cold fusion.
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Old May 20, 2003 | 07:12 PM
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Do they have evidence of neutron production? If not it's not fusion, and there is an alternative explanation. There are still people working on the palladium electrode flavour of "cold fusion" who swear blind it's real, and they do get excess energy sometimes, but the problem is that other similar setups without using deuterium do also, and none of them produces neutrons. Without neutrons what you have is a physical or chemical process producing energy - like changes in crystalline structure for example. Also with sonoluminescence most independent researchers think the temperatures achieved are many orders of magnitude lower than what is claimed and what is required for fusion.
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Old May 21, 2003 | 03:38 PM
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Hey Rich, interesting post. This is a year old now, and the apparatus doesn't look that complex. If it's real, it seems as if someone would have replicated it by now.
http://fire.pppl.gov/acoustic_cavitation.htm
Did you see the Nature article or commentary- sounds as if there is reason to suspect a chemical reaction. Any physicists out there?
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