Radio: Hot Spot

On sultry evenings next summer, some radio stations, just for the stunt, may broadcast the mating song of the female mosquito. If Dr. Morton C. Kahn of Cornell University Medical College had his way, each tuned-in radio would be equipped for the occasion with an electric grill to snuff out the lives of male mosquitoes attracted by the siren call. Dr. Kahn's experiment worked successfully in Cuba's malarial swamps (TIME, Oct. 11, 1948), but at that time the electrified nets surrounding the loudspeakers were charged with dangerous voltage. Says Dr. Kahn: "Our problem now is to devise an instrument which will...

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