Re: [Phys-l] pistol shrimp

[Bernard Cleyet <bernardcleyet@redshift.com>]

The claim that fusion occurs has been much in the news, especially  
since the claimant has had his knuckles rapt.


http://en.wikipedia.org/wiki/Bubble_fusion


bc  assisted a senior student in her sonoluminescence thesis, and  
knows the snap shrimp's method of hunting prey is old hat.

p.s. the navy has some interest in this, as cavitation destroys props.

http://en.wikipedia.org/wiki/Cavitation

On 2008, Dec 03, , at 20:15, Vern Lindberg wrote:

> 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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