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jan 1, 1939 - Radar

Description:

Sir Robert Watson-Watt, a British physicist, developed the first operational radar device in 1935. Radar assisted Allied powers in detecting hostile ships and aircraft. After, it was discovered to have many non-military applications, such as steering civilian vessels and predicting global weather disasters such as hurricanes

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Bygabi
18 May 2021
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Date:

jan 1, 1939
Now
~ 86 years ago
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