Everywhere in the modern world, the throb of alternating current - TopicsExpress



          

Everywhere in the modern world, the throb of alternating current generates electromagnetic waves — from the television, the blender, the light bulbs, the wires in the wall. Because the oscillations are very slow (just 60 hertz, or cycles per second), this type of radiation is called “extremely low-frequency.” It was long thought harmless because it is too weak to knock out electrons and directly damage molecules in the body. But--
Posted on: Sun, 13 Jul 2014 11:25:13 +0000

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