On Wed, 06 Feb 2008 23:27:32 -0500 Martin Peach <[EMAIL PROTECTED]> wrote:
> Andy Farnell wrote: > > On Wed, 6 Feb 2008 21:58:49 -0500 > > Chris McCormick <[EMAIL PROTECTED]> wrote: > > > > > >> On Wed, Feb 06, 2008 at 04:30:19PM +0000, Andy Farnell wrote: > >> > >>> As I see, the unipolar vacuum collapse theory only makes sense, if there > >>> is a chemical reaction that removes CO2, H2O, O2 or N2 from the > >>> atmosphere, > >>> (and one assumes no matter is transformed to energy) - well NO2 and O3 > >>> are produced, but that doesn't account for the volume. > >>> > >> Really? I'm not so sure about that. > >> > >> <http://en.wikipedia.org/wiki/Sonoluminesence> > >> <http://en.wikipedia.org/wiki/Pistol_shrimp> > >> <http://youtube.com/results?search_query=pistol+shrimp&search_type=&search=Search> > >> > > > > > > I'd love to believe that sound can turn matter into energy, it would really > > cheer up my day. But I think esoteric explanations of sonoluminesence are > > quite > > unnecessary, This looks like plain old "pumping" to me. The smoking gun is > > the > > colour...blue-green which is the 337nm emission of nitrogen... which is in > > air. > > > 337nm is invisible ultraviolet. See the spectrum here, it is multicoloured: > http://astro.u-strasbg.fr/~koppen/discharge/nitrogen.html > Here's one of air: > http://www.scitechantiques.com/MMs_project/reference%20paper/Air_Spectrm_5mm_labeled.jpg Ah yes, so it is. Thanks Martin. I still think that sonoluminesence blue is coming from Nitrogen though, call it a hunch :) > It seems to depend on the amount of water in the air what colour you > get, the hydrogen makes it more red. Yeah, I've seen that, and orange lighning too. > > > So it's electronic in nature. No need for mini-black hole theories, the > > energy > > comes from the sound and somehow (probably by dipole movement) becomes > > electromagnetic, excites the nitrogen shell and is re-emitted as a 337nm > > quanta. > > > The sound is a result of the expansion of the ionized air in the channel > that was suddenly heated by the passage of huge numbers of electrons. Yes, we're clear on that. I was responding to Chris suggesting that maybe there's some nuclear interactions at work in lighning (which I am open minded about but sceptical), and he mentioned sonoluminesence, which I believe has a rather more established explanation (ie it isn't fusion or anything weird) andy -- Use the source _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list