X-Message-Number: 2236
Date: Tue, 11 May 93 11:29:07 CDT
From: Brian Wowk <>
Subject: CRYONICS LN2 Perils

Mark Voelker:
 
> Actually, it might be a
> good idea, if such a room is built, to put the present patients, in their
> present dewars, in the room, since this would lower the LN2 boiloff rate.
 
        Can't do it.  A dewar vacuum failure would badly injury -130'C 
patients by making them much colder.
 
        By the way, I have thought of the best reason yet why *not* to 
transfer LN2 patients to -130'C storage.  Any LN2 trapped in body 
cavities like the sinuses would reach a pressure of about 60 
atmospheres (1000 psi) at -130'C.  In colloquial terms, the patient's 
head could explode.
 
                                                --- Brian Wowk 

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