21 h 12 m, 15 abr 1896 año - Guglielmo Marconi's Radio invention
Descripción:
Guglielmo Marconi sent and received Morse code-based radio signals at distances spanning nearly 4 miles. The same year, Marconi got the first patent in wireless telegraphy in England. In 1897 Serbian-American Nikola Tesla invented the induction coil or Tesla coil, a device essential to sending and receiving radio waves and applied for his first patents in radio work in the United States.
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21 h 12 m, 15 abr 1896 año
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~ 128 years ago
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