Science: Particle Protection

Every so often newspapers get steamed up about some mysterious new ray which will deal long-range death to men and animals, down airplanes or work other wholesale damage. Lately a ray said to stop gasoline engines and supposedly invented by no less a personage than Guglielmo Marconi stirred up a pother, which faded away when Marconi himself squelched it. Last week another exciting ray story cropped up in dispatches from Berkeley, Calif, which produced such headlines as NEW LETHAL RAY HURLED BY MAGNET, and NEW DEATH RAY TO AID MANKIND BEGINS ITS TEST....

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