X-Message-Number: 5139
Date: Wed, 8 Nov 1995 14:37:28 MST
From: "Richard Schroeppel" <>
Subject: pressure freezing

If enough pressure is applied, the freezing point of water begins
increasing.  At 10K(?) atmospheres, the freezing point exceeds 37C.
Once frozen, the freezee's heat can be allowed to leak out slowly,
and the temperature reduced to LN2.  Then the pressure can be removed.

I can see several problems with this proposal.

It does suggest something real however:  The viscosity of cytoplasm
must be increased by compression; also the velocity of heat transfer
(since the molecules are closer together).  Is there a more reasonable
pressure/temperature curve that will vitrify the victim?

Has anyone worked out the phase diagram of, say, mouse tissue?

Rich Schroeppel   


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