Two years ago a California radar technician died after exposure to high-powered microwaves. Why? The examining doctor's explanation was that the microwaves caused "intolerable" heating of the man's tissues. Biologist John H. Heller doubted this explanation, suspected that the microwaves had somehow fatally altered the body's cells. To find out, he began experimenting with lower-powered radio waves at the New England Institute for Medical Research in Ridgefield, Conn. Last week in Britain's Nature, he and Dr. A. A. Teixeira-Pinto reported that their experiments had provided "a new physical method" for manipulating cells and their contents, including the all-important chromosomes in the...
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