X-Message-Number: 3618 Newsgroups: sci.cryonics From: (Robert D Grahame) Subject: Re: Superconductors and the Peltier effect. References: <3eab3e$> Date: Wed, 4 Jan 1995 22:14:27 +0000 Message-ID: <> In article <3eab3e$> writes: > If the so called experts on this net read more recent information they >would not be so quick to jump to conclusions. I'm not an expert, but the difficulty I had with understanding your proposal is this :- However cold you can make something, and however efficiently you can do it, you still have to chill a few pounds of water from room temperature to minus whatever in a *very* small period of time. Cooling particles with lasers is OK when you can hit the particle with a laser. Under several centimeters of brain tissue this is not an option. Even embedding superconducting peltier devices capable of maintaining close to 0K measuring just a few mm across inside every blood vessel large enough to take on wouldn't be fast enough. I've got no problem with understanding (at least in principle) the technology you are proposing, but I can't (yet) see how you propose to apply it to cryopreservation of large samples of tissue. Have I missed something? Regards, -- Bob Grahame, Streatham, London. LAN Consultant -- Voice : +(44)71 406 7795 : PGP Key available -- Towel : 0d8'22"W51d24'16"N+29M Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=3618