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James Maxwell proves the existence of radio waves
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Mahlon Loomis demonstrates aerial telegraphy by making a meter attached to a kite make another move
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Heinrich Hertz demonstrates that radio waves can be projected into space
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Gugliemo Marconi sends and receives the first radio signal.
Gugliemo Marconi Sent and received the first radio signal. -
Invention of the Wireless Phone
On this day, Reginald Fessenden made the first wireless telephone call and became the first person in history to transmit the human voice through radio waves. -
Invention of the GPS
On this date, the U.S. Air Force lauched the 24th Navstar satellite into orbit, completing a network of 24 satellites known as the Global Positioning System. -
Nikola Tesla patents radio technology, overturning Marconi's
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XM Satellite Radio
On this day, XM rolled out its satellite radio service to nationwide subscribers