From: Bruce Maccabee <firstname.lastname@example.org> Date: Wed, 13 Jan 1999 13:36:21 -0500 Fwd Date: Wed, 13 Jan 1999 22:57:20 -0500 Subject: Re: Fox TV Special >From: Greg Sandow <email@example.com> >To: UFO UpDates - Toronto <firstname.lastname@example.org> >Subject: Re: Fox TV Special >Date: Tue, 12 Jan 1999 12:21:54 -0500 >>Date: Mon, 11 Jan 1999 22:52:40 -0500 >>From: bruce maccabee <email@example.com> >>Subject: Re: Fox TV Special >>To: UFO UpDates - Toronto <firstname.lastname@example.org> >>Just a technical point here: there IS a way to "translate sound >>into light", but it plays no role in this discussion. The >>phenomenon of "sonoluminescence" does appear to be the direct >>conversion of acoustic energy or power into light by focusing of >>sound waves into a fluid under particular circumstances. The >>phenomenon is not yet understood. There is no color-frequency >>relationship, however (at least not that I'm aware of).,> >Very interesting. Thanks for correcting me, Bruce. It would be >interesting to know what relationships -- if any -- are created >between the sound and the light. Do you know anywhere I can read >more? Try: www.sonoluminescence.com Or, better yet, do a web search. I got 400 hits! OK, Greg, here's your chance for a Nobel Prize: explain sonoluminescence. Nobody knows how it works. In water a converging sound wave sets up a pressure field tat acts on a tiny bubble in the water in such a way as to create a pulse of light. When this was first discovered years ago people were amazed. They were more amazed as the time duration of the light pulse was measured. I think it was only abou 10 years ago that experimental equipment got good enough (fast enough) to measure these bursts which are on the order of 50 picoseconds ( 50 times ten raised to the minus 12 seconds or 50 millionths of a millionth of a second). It is presently a subject of some intense research both experimental and theoretical.
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