"Ears" for Mechanical Brains Help British Air Defense

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Part of "Ears" for Mechanical Brains Help British Air Defense

One factory in England is turning out “ears” by the dozen to be used in defense against air raids, Called paraboloids because of their shape, the ears are fitted to sound locators which can detect the approach of airplanes.

Title (Dublin Core): "Ears" for Mechanical Brains Help British Air Defense