Check out the photo at <http://www.nature.com/news/2006/060109/full/
060109-5.html>. The sonoluminescence color is just like the anode
blue-green glow color. Here's a comparison color: <http://
home.earthlink.net/~lenyr/borax.htm>.
If you want to see a very blue D2O glow, take a look at <http://
www.netmdc.com/~physics/>, though the anode glow, if any, appears to
be coincidental. The site specifies "deuterated sulfamic acid
electrolyte, Rare earth plated W cathode, Pt on Ti screen anode."
Any bets on dark blue for *D2O* anode glow?
>PHYSICS NEWS UPDATE
>The American Institute of Physics Bulletin of Physics News
>Number 246 October 25, 1995 by Phillip F. Schewe and Ben Stein
>
>ISOTOPE EFFECTS IN SONOLUMINESCENCE have been
>observed by Seth Putterman and Robert Hiller at UCLA.
>Sonoluminescence (SL) is a mysterious phenomenon in which acoustic
>energy is transduced into light energy; high frequency sound waves
>are absorbed by tiny bubbles in water. The bubbles, oscillating
>wildly, re-emit the energy in the form of tiny, focused light bursts.
>Many things about SL are still unknown, such as the nature of the
>light-emitting process or why the light pulses are so short. The
>UCLA work has established one new fact: substituting heavy water
>(D2O) for ordinary water (H2O) as the liquid medium causes the SL
>spectrum to dramatically shift from ultraviolet toward red
>wavelengths. This result seems to represent yet a new mystery.
>According to the researchers, "The shift is remarkably large,
>especially in view of the small difference in chemical and elastic
>properties between light and heavy water." (Robert A. Hiller and
>Seth Putterman, upcoming article in Physical Review Letters;
>journalists can obtain copies from AIP Public Information,
>[EMAIL PROTECTED])
