The new encyclopædia Britannica: in 30 volumes |
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Page 261
... Communication ( N.W. ) Satellite communication , the use of man - made satellites travelling in Earth orbits to provide communication links between various points on Earth , is man's most important nonmilitary exploitation of space ...
... Communication ( N.W. ) Satellite communication , the use of man - made satellites travelling in Earth orbits to provide communication links between various points on Earth , is man's most important nonmilitary exploitation of space ...
Page 263
... communication satellites , it was not universally accepted that solar cells could reliably pro- duce the large amount of power necessary to keep the communications equipment aboard a satellite functioning properly . A good deal of ...
... communication satellites , it was not universally accepted that solar cells could reliably pro- duce the large amount of power necessary to keep the communications equipment aboard a satellite functioning properly . A good deal of ...
Page 267
... communication satellite was successfully launched on March 20 , 1970. Skynet is a British defense satellite system ... communication and sig- nals around eight gigahertz for communication between fixed terminals . OSCAR . OSCAR ...
... communication satellite was successfully launched on March 20 , 1970. Skynet is a British defense satellite system ... communication and sig- nals around eight gigahertz for communication between fixed terminals . OSCAR . OSCAR ...
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