X-Message-Number: 3364
Date: Fri, 28 Oct 1994 12:41:23 -0400
From: Ken Stone <>
Subject: CRYONICS Question regarding ice crystal formation

Someone touched on the notion of using high pressures during suspensions
a few weeks ago, but then I didn't see anything more about it, or any of
the follow-up that I hoped for.

The idea presented involved massively increasing the pressure during 
suspension over an extremely short period of time in order to convert the 
person into a solid in a snap. A few persons expressed reservations about 
the technique, noting that the quick changes in pressure would smush the 

My question is, why is there a need for that kind of instantaneous pressure
change, any way?  Why can't a patient's pressure simply be gradually
increased to a point where ice expansion doesn't occur during cooling?

Is the problem really with ice crystal formation itself, or just with the 
deformation caused by expansion occurring when crystals form at 'normal' 

Ken Stone - 
"Listen to what I say, not what I mean."

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