X-Message-Number: 3552 From: (Robert D Grahame) Subject: SCI.CRYONICS Re: Flash freeze of Humans References: <> Date: Fri, 30 Dec 94 21:41:09 GMT In article <CryoNet Message: #3543> Jan Coetzee write: >If so, then if it was possible to flash freeze a living human and then >flash thaw him he should have not suffered damage from it. Possibly... But the thermal conductivity of a human is extremely low (compared to a metal). Even if you dunked a naked brain straight into a vat of liquid helium only a thin layer on the outside would be flash-frozen. The rest would freeze in a normal manner, and the un-even contractions from that process would probably crack the fragile flash-frozen layer in to the bargain. If you could somehow pump a similar coolant *through* the brain quickly, then you might be on to something, but to do that you'd have to get the liquid out of the blood vessels first, which sounds like a non-starter. The computer method is fine, if you have metal implants running through your brain, but for most people that's not going to be of much use. :-) 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=3552