X-Message-Number: 19384 From: Date: Mon, 1 Jul 2002 12:29:46 EDT Subject: Intensity Interferometer 4 --part1_193.92589b8.2a51dd7a_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Intensity Interferometer part 4. Sound wave, at the elementary level are represented by a kind of quasi-particles: phonons. Phonons are to sound what photons are to electromagnetics radiation. So, why not an intensity interferometer working with phonons? The idea may be extended to other excitation states of bulk matter, but today I'll limit myself to sound waves. In liquids, sound speed is in the 1000 m/s range. If we have a sampling system working at 100 Mhz, the sampling wavelength will be 10 micrometers. May be the sound wave used has a frequency in the Ghz range. We are interested in details down to 10 nm or 1 000 times smaller than the sampling wavelength, that is, we will need one millions "experiments" to go to that scale. Each experiment must have a duration defined by the difference in scale multiplied by the sampling period, that is: (10 micrometers/10 nanometers) x 1/100 000 000 hz or 10^-5 s. Because we need 1 million experiments, the total observation time is 10 seconds. We are in the manageable time! That give only one point, well there may be many detector running simulatneously, may be one million or so. Assume we have to cover a surface near 1 000 sq centimeters. Each detector would have to cover 10 micrometers squared, so 1 millon would cover 1 sq. cm or 1/1 000 th of the total surface. We have then to move them 1 000 times and make the experiment 1 000 times to resolve an entire brain down to 10 nanometers. This would take 10 000 seconds or near 3 h. I think this is the best we can get without X-rays systems. The most interesting fact is that reader could be built with present day technology. We could have a problem with building back the picture on a computer, but that problem will solve itself in some years. An University reseach department could take the challenge to build that reader, but I am not optimist on that. Cryonics organizations could do it, but no one is interested in up-loading or scanning technology, they may have too more pressing reseach needs.... Yvan Bozzonetti. --part1_193.92589b8.2a51dd7a_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=19384