Science: Versatile Researcher

Last week the scientific world heard of a noise that was literally "killing." Inaudible to human ears, it consisted of extremely short, rapid sound waves produced from electrically driven quartz crystals. Similar waves had been used in submarine detection, during the War, when it was noticed that fish in the experimental tanks were occasionally killed. Subsequent experiment had shown that stagnant water could be freed from microorganisms; that small fish died in convulsions after "hearing" the quartz waves; that the blood count of a swimming mouse was reduced one half after 20...

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