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Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting. Heinrich Rudolf Hertz (1856–1894) proved the existence of electromagnetic radiation.
The timeline of radio lists within the history of radio, the technology and events that produced instruments that use radio waves and activities that people undertook. Later, the history is dominated by programming and contents, which is closer to general history.
In 1900, construction began on a large radio transmitting alternator. Fessenden, experimenting with a high-frequency spark transmitter, successfully transmitted speech on 23 December 1900, over a distance of about 1.6 kilometres (0.99 mi), the first audio radio transmission.
12 wrz 2023 · In 1906, Reginald Fessenden produced the first voice and music program in Massachusetts, and the true power of the tech became obvious. While many inventors considered the radio to be a replacement for the telephone or the telegraph, others saw it as an opportunity for entertainment.
From about 1920 to 1945, radio developed into the first electronic mass medium, monopolizing “the airwaves” and defining, along with newspapers, magazines, and motion pictures, an entire generation of mass culture. About 1945 the appearance of television began to transform radio’s content and role.
In its beginning years, radio – then known as “wireless” – was considered a point-to-point communication medium. The practice of one-way broadcasting to a mass, unseen audience began almost unnoticed in 1920 when a handful of low-power experimental stations scattered around the country transmitted to a small cadre of ham operators and hobbyists.
4 paź 2023 · Guglielmo Marconi, an Italian inventor, is universally recognized as the brains behind the invention of the radio. Born in 1874 to an Italian father and an Irish mother, Marconi was intrigued by physics and electrical science from a young age.
