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12 agos 1960 anni - Echo 1-RADIO COMMUNICATIONS

Descrizione:

Acting as a passive reflector of microwave signals. Communication signals were bounced off it from one point on Earth to another.

Aggiunto al nastro di tempo:

Early History of satellites

ByCamila Alvarez

29 nov 2018

0

0

320

Data:

12 agos 1960 anni

Adesso

~ 65 years ago

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