[nidokidos] Aircraft Detection Before Radar

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Aircraft Detection Before Radar   Aircraft Detection Before Radar... I bet none of you ever saw this stuff before.    How air attacks were detected before radar... Old time acoustic hearing aids ACOUSTIC "EARS" BEFORE RADAR - ON A SWIVEL   ACOUSTIC "EARS" BEFORE RADAR - GERMAN ACOUSTIC "EARS" BEFORE RADAR - ON WHEELS ACOUSTIC "EARS" BEFORE RADAR - ENGLAND

Daventry Experiment: Arnold Wilkins and the Birth of Radar


75 years ago Arnold Wilkins suggested that aircraft could be detected by reflections from a beam of radio waves.

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http://www.nidokidos.org/threads/47547-Daventry-Experiment-Arnold-Wilkins-and-the-Birth-of-Radar

 

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