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194? - pioneer airplane sound detection finder invented by Mr. Edison


CD 2478031 E&MP11.019

Edison, Thomas A.

9 February 194?

As President of the Naval Consulting Board, Thomas Edison gathered around him technical experts from industry and the various colleges and universities to conduct tests and experiments into the development of special devices for the military conduct of World War I.

Some of the developments stimulated by Mr. Edison and that gave rise to the amazing technical accomplishments of World War II are pictured here.

AIRPLANE DIRECTION FINDER -- A pioneer airplane sound detection finder invented by Mr. Edison, consisting of two sound pick up horns which when centered on the area of the most intense sound located an approaching aircraft before it became visible to the naked eye.  

Original Caption by Science Service
United States Navy

National Museum of American History


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