On Inventing the Radio

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On Inventing the Radio

James Clerk Maxwell predicted the existence of radio waves. Once the radio waves were discovered, Einstein's theory of relativity took off.

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On Inventing the Radio
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On Inventing the Radio

Nathan Stubblefield is claimed to be the inventor of wireless telephony or wireless transmission of the human voice.

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On Inventing the Radio
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On Inventing the Radio

Mahlon Loomis, also known as the 'First Wireless Telegrapher', demonstrated a wireless communication system between two sites 14 to 18 miles apart in 1868.

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On Inventing the Radio
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On Inventing the Radio

Amos Dolbear, a professor at Tufts University, received a U.S. patent for a wireless telegraph in March 1882.

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On Inventing the Radio
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On Inventing the Radio

Heinrich Hertz was a German physicist and mechanic. He was the first person to prove the presence of electromagnetic waves by constructing a system to create and detect UHF radio waves. His name is used for the units of radio frequencies. 

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On Inventing the Radio
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On Inventing the Radio

Sir Oliver Lodge designed a device called a 'coherer', a radio wave detector and the basis of the early radiotelegraph receiver. He was the first human to transmit a radio signal.

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On Inventing the Radio
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On Inventing the Radio

Alexander Popov constructed the first radio receiver in 1894. This was then modified as a lightning detector and demonstrated before the Russian Physical and Chemical Society on 7 May 1895. This day is remembered by the Russian Federation as 'Radio Day'.

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On Inventing the Radio
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On Inventing the Radio

Nikola Tesla designed the fundamental design for radio in 1892. Later, in 1898, a radio controlled robot-boat was patented. This boat was controlled by radio waves and shown in the Electrical Exhibition in Madison Square Garden.

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On Inventing the Radio
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On Inventing the Radio

Guglielmo Marconi, an Italian inventor, demonstrated the practicability of radio communication. His first radio signal was sent and received in 1895. In 1899, the first wireless signal was sent across the English Channel. In 1902, the letter 'S' was telegraphed from England to Newfoundland. This was the first triumphant transatlantic radiotelegraph.

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On Inventing the Radio
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On Inventing the Radio

Reginald Fessenden is a Canadian inventor reputed for his achievements in early radio. The first audio transmission by radio in 1900, the first two-way transatlantic radio transmission in 1906 and the first radio broadcast of entertainment and music in 1906 were three of his significant milestones. 

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On Inventing the Radio
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