X-Message-Number: 7170
From:  (Charles Platt)
Newsgroups: sci.cryonics
Subject: Re: helium under high pressure
Date: 19 Nov 1996 22:05:50 -0500
Message-ID: <56tsie$>

References: <> <56qm17$> 
<>

Will Ware () wrote:
> I have a thought that seems fairly obvious, so I assume it's already been
> discussed and shot down, and I'd be curious to hear what's wrong with it.
> You'd think it would be possible to assemble a thermally conductive 3D
> latticework thru a brain, e.g. of metal. For instance, hypodermic needles
> don't seem to do much damage to living tissue; one could imagine a mesh
> of them running thru a volume of tissue. It should then be possible to
> withdraw heat from the tissue very quickly. Why doesn't this work?

Okay, Will, we'll give it a try--so long as it's YOUR brain that we use,
when we need to insert those 30,000 foot-long hypodermic needles!

Seriously ... a brain is likely to suffer significant damage merely by
being removed from the skull, before we even start spearing it with sharp
pointed objects, some of which presumably will pierce nerves and neurons.
Since the circulatory system already exists, enmeshing the brain in a very
fine web of capillaries, it makes much better sense to use that as a means
of removing heat (by pumping cold fluid through it).


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