X-Message-Number: 15669
From: 
Date: Sat, 17 Feb 2001 11:05:05 EST
Subject: cracking etc.

Grimes wrote:

>The person who wrote to me claims that the initial cooling rate has no 
>effect on fracturing. He says that probably the reason CI people may not 
>fracture would be that they don't absorb enough glycerol to turn into a 
>solid state where fracturing happens. 
  
Apparently they have never heard of shell freezing. If you put a large 
specimen in a very cold environment, an outside shell freezes while most of 
the inside is still unfrozen. When that interior freezes and expands, the 
initially frozen outer shell cracks in many places to make room. If you don't 
believe it, try it.

And, as I recall, Alcor found cracking even when their glycerol concentration 
was 3-4 M, not 7 M. Ours is 3-4 M, but no cracking on any scale. Maybe not a 
huge deal, but certainly a benefit.

Grimes also complains about lack of "references" on our web site. There are 
plenty of references there. If he means references on our research pages, in 
the reports by Dr. Pichugin and others, what would be the point? They are 
reporting on what they found, not comparing their findings to those of others 
or to different experiments.

Robert Ettinger
Cryonics Institute
Immortalist Society
http://www.cryonics.org

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