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6 janv. 1941 - Horn Reflector Invented

Description:

The Holmdel Horn Antenna was invented in 1941 by Alfred C. Beck and Harald T. Friis. It was used to locate measurements of low levels of weak background radiation.

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ByKaden Kemp
6 janv. 2020
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Date:

6 janv. 1941
Maintenaint
~ Il y a 84 ans
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