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by on April 12, 2012
We all know that a RADAR is used to detect the position of aircraft using radio waves. The term RADAR was first coined in 1941 and stands for RAdio Detection And Ranging. Before the invention of RADAR there was obviously a need to detect enemy aircraft. So what do you think they did? See pictures below… So basically they just used these contraptions to make their ears bigger to pick up the sound waves in the air. Makes you wonder if they had any false alarms when a bumble bee flew close by. Gi...
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