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Sky wave

A sky wave is a radio wave from a distant radio station that is refracted in the ionosphere. It brings in distant stations at night on AM as clear as local stations.



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Dennis Gabor

...     Contents Dennis Gabor Dennis Gabor (Gábor Dénes) (1900-1979) was a Hungarian physicist. He invented holography in 1947, for which ...

 
 
 
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