Author: Dieter Buerssner
Date: 14:22:48 05/30/02
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On May 28, 2002 at 15:45:24, Robert Hyatt wrote: >A cell phone is a radio transmitter. Radio waves definitely interact with >human cellular structure, not always in "good" ways. Come down to UAB and >walk into our 7 Tesla MRI facility. It will make you dizzy if you move while >it is turned on. Which means that huge magnetic field is interacting with your >cellular structure in some way. Good or bad? Probably bad. I don't understand "MRI". I did research with very high static magnetic fields (25 Tesla, the magnet needed about 10 MW - superconduction does not work anymore with such high fields). I never felt "dizzy"´in the lab. My work was on the influence of magnetic fields on chemical reactions (which is related to the possible influence on humans/animals and biochemical reactions). Typically, there is no influence. Exceptions are reactions involving radical pairs (but biochemical reactions are not of this sort normally, with the famous exception, photosynthesis. BTW. the interaction is even understood on a quantum theoretical level). Of course, I would not compare static magnetic fields with the electro magnetic fields (waves) of cellular phones. Also, with such ludicrously high magnetic fields, one has significant physical effects. The viscosity of blood can double. However, with fields a "normal" human would ever encounter are orders of magnitudes lower, and known physical effect are very small. A nice anecdote told by a professor: The influence of high static magnetic fields on the reproduction of rats was tested. The surprising result: They stopped to reproduce. Later an errata appeared: "The cage was too small, they could not get over each other". Regards, Dieter
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