MMC 2604 Chapter Notes - Chapter 5: Wireless Telegraphy, Samuel Morse, Triode
23 Oct 2018
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Chapter 5: popular radio and the origins of. Early technology and the development of radio: telegraph 1940s. Morse code, samuel morse: maxwell and hertz discover radio waves. Maxwell is the mid 1860s theorized electromagnetic waves, further theorized them as radio waves. Hertz in the 1880s proved these theories with steel balls: marconi and the inventors of wireless telegraphy. Marconi in 1896 received patent on wireless telegraphy. Marconi is cited as the father of radio, but popov was working at the same thing at the same time. 1943 supreme court overturned marconi"s wireless patent and deemed tesla the inventor of radio: wireless telephony: de forest and fessenden. Forest wrote the rst ph. d. dissertation on wireless technology. 1902 forest set up the wireless telephone company to challenge marconi. De forest patented more than 300 inventions: created the audiom, or triode, vacuum tube. Fessenden credited with he rst voice broadcast.
