X-Message-Number: 5320 From: (JensTroll) Newsgroups: sci.cryonics Subject: High Pressure Cryonics Date: 1 Dec 1995 03:37:43 -0500 Message-ID: <49mesn$> One thing that has always bothered me about the cryonics idea has been that freezing destroys cell walls because ice expands on freezing. However, there exist other solid phases of water than normal ice. Read "Ice Physics" a texbook. I intend to make a better post which names the authors gives the pub date and so on. Anyway pure water ice forms other phase which contract on freezing. ice-III is the one with the lowest minimum pressure which can be reached from liquid water. That pressure is ~2100 barr or ~30,000 psi. That is very high pressure, but that is for pure water. I suspect that the required pressure could be very much lower for salt water. Is anyone aware of experiments or data on this???? Even if you had to use 30,000 psi to do it, I think it might be possible to freeze humans at that pressure without killing them. I am well aware that this could not be done in a gasious environment at those pressures. However, the navy has experimented (successfully) with liquid breathing fluids. I do have some information about this. Anyway has anyone heard of any research going on regarding this??? P.S. I have a technical background in mechanical engineering. I would be interested in helping with such a project. Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=5320