Word: electromagneticism
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Such support was needed. Although Einstein's theory offers the most comprehensive explanation of gravity since Newton formulated his gravitational laws, it has recently encountered its most serious challenge. One consequence of the theory is that light and other electromagnetic waves should be measurably bent when passing through a...
The source of such electromagnetic interference may be almost any piece of electrical equipment-fluorescent lights, the ignition system of a car, or even a seemingly innocuous transistor radio. And with so many sources, the interference is becoming more and more exasperating. Even the Government finds itself suffering from the...
Electromagnetic pollution can also be highly dangerous. Certain pacemakers, for example, designed to steady the beat of a faltering heart, can be knocked temporarily out of rhythm if they happen to come close to microwave ovens. Other medical devices are vulnerable too.
Whispering Gallery. One major cause of the electromagnetic smog is the increasingly intensive competition for the use of available radio frequencies. In 1949, there were 160,000 radio transmitters of all kinds operating in the U.S. Now there are more than 6,000,000, and the number will doubtless continue...
Muffling stray interference will be a more difficult job. Most of the new electronic gadgetry-color TV sets, arc welders, diathermy machines-are potential electromagnetic polluters. As the Government's watchdog over the air waves, the Federal Communications Commission was recently authorized to take stiffer action against manufacturers of...