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Heinrich Hertz experimented in the1880's with transmitting signals wirelessly -
Marconi had a breakthrough in 1885 when he discovered he could send the signal a greater range by raising the antenna -
Nikola Tesla created the Tesla Coil which was able to send electricity wirelessly -
Marconi sent the first message over the Atlantic oceanic 1901. He sent a message from Ireland to Newfoundland, Canada -
The Audion tube was first created by Reginald Fessenden in 1906 and it was the very first amplifier to push waves further. Lee de Forest later improved on it -
In 1922 WEAF aired a 10 minute ad about an apartment complex charging $50 -
Radio became the biggest form of entertainment in the United States. The whole family would sit around and listen to the radio much like people watch tv today
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