X-Message-Number: 18919
From: 
Date: Sat, 13 Apr 2002 11:12:31 EDT
Subject: "magnetic fluids"

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Brent Thomas (#18917) writes in part:
> 
> >[quoting] Another possible use of magnetic fluids is magnetic 
> hyperthermia. By passing an alternating magnetic field across a magnetic 
> fluid, the particles will heat up, destroying tissue in their path. This 
> method looks promising as a noninvasive means of treating brain tumors, the 
> researcher says. 
> 
> >It occured to me that if one were to use a similar fluid as part of a 
> 'blood replacement' therapy BEFORE cryonic suspension
> (basically ensuring that the tissue is fully permeated with the solution) 

"Magnetic fluid"? A changing magnetic field will produce electric potential 
differentials (voltages), fluid or no fluid (Maxwell's equations), and if 
there is a material there that conducts electricity there will be an induced 
current and Joule heating. As far as I can see, introducing actual magnetic 
dipoles would not be especially helpful.

Nothing new about induction heating or microwave heating. The problem of 
uniformity would not easily be solved by this suggestion, as far as I can 
see, without nanobots. With nanobots almost everything becomes easy, in 
principle. 

There have been many suggestions still on the research agenda, but our 
resources do not yet allow us to work on anything but the highest priorities. 
Dr. Pichugin has some interesting things in his next research update for the 
next issue of The Immortalist. 

Robert Ettinger
Cryonics Institute
Immortalist Society
www.cryonics.org

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