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Guglielmo Marconi made an interesting discovery by proving the higher you raised the radio apparatus the longer the transmission would be sent.
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Nikola Tesla created the Tesla Coil, which was used to transmit alternating current electricity
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Marconi sent the first Transatlantic message across the Atlantic from, Ireland to, Newfoundland, Canada
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The Audio tube was invented by Reginald Fesseden and was basically an amplifier to push signals further by giving them more power
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The first official radio station in the US was created , KDKA, and it is still in operation today
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On WEAF they aired the first commercial in 1922, for an apartment complex costing $50
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The TV was invented in 1927 and took a lot of the audience away from radio, so radio switched towards music rather than shows
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In the late 1920s, the FCC was created to clear the radio communication chaos and make sure there weren't any, "Uncle Charlies" cluttering the radio signals.
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The golden age of radio consisted of shows, music, and family time around the radio. Some big shows included, Amos and Andy, Gunsmoke, Superman and Little Orphan Annie.
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Edwin Armstrong created FM radio in 1936 and it was used mainly for music because of its wide dynamic range.
