Radios get smart /

Guglielmo Marconi's first radio broadcast was a point-to-point affair, a transmission from England to one person in Nova Scotia. It was the radio equivalent of flying an airline's passengers across the Atlantic one at a time. Today, we pack radio waves into the air as tightly as economy se...

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Autor principal: Rubenstein, Roy
Formato: Otro (Other)
Idioma:Español (Spanish)
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