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Re: [Phys-l] pistol shrimp



I may well be wrong, and I am not a physicist. But I would like to hear from some of the physics people on the list about what happens if you have an undersea region at 20,000K. And then multiply that by lots of these pistol shrimp killing prey day by day. I think someone would have noticed.

Or maybe someone can explain the thermodynamics of these little shrimp producing 20,000K temperatures in a non-negligible region.

My money is 100-1 spoof.


REG



Sonoluminescence--Wikipedia
"More than 50 years later, in 1989, a major advancement in research was introduced by Felipe Gaitan and Lawrence Crum, who were able to produce stable single-bubble sonoluminescence (SBSL). In SBSL, a single bubble, trapped in an acoustic standing wave, emits a pulse of light with each compression of the bubble within the standing wave. This technique allowed a more systematic study of the phenomenon, because it isolated the complex effects into one stable, predictable bubble. It was realized that the temperature inside the bubble was hot enough to melt steel. Interest in sonoluminescence was renewed when an inner temperature of such a bubble well above one million Kelvins was postulated. This temperature is thus far not conclusively proven, though recent experiments conducted by the University of Illinois at Urbana-Champaign indicate temperatures around 20,000 Kelvins."

Surface temperature of sun approx 6000 K

If it is sonluminexcence the claim is not a spoof.

VL

On Dec 3, 2008, at 10:58 PM, Richard Grandy wrote:

You didn't listen closely enough, the clip says that the shrimp
produces temperatures equal to that of the sun! I think the
technical name for the mechanism is "spoofing".

A student send me this video clip. Scroll down to "Play Video" It's of a
shrimp that produces a sound so loud it produces light -- and a water
temperature of several thousand degrees! Amazing! How is this possible?

http://community.atom.com/Post/The-Most-Disturbing-Animals-on-
Earth/03EFBFFFF0182C7B8000800A5BDC5/


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Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
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_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l

_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l