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Nikola tesla, after arrviing to Ameica, sold his patent rights for the transformer, dynamo, and motors to George Westinghouse.
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Mahlon Loomis, a dentist, was able to make a meter connected to one kite cause another one to move.
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Marconi was succesful in transmitting the message "S" from England to NewFoundland. This took two years.
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Required all land radio and ship stations to be staffed 24 hours a day, 7 days week.
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There was little communications for ships out at sea before the radio. Visula signals were used and were still used after the radio was in use for ships.
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With the Great Depression's arrival people began to rely on the radio for retreat.
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Marconi
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In Pennselvania, KDKA became the first radio station
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It became the British Broadcasting Corporation when it was granted a Royal Charter.
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Edwin Armstrong invented the FM transmission. It had a higher range and better sound quality. So it was the new thing to use for music, while am was left for radio talks.