the history and development of Bluetooth

Apr 15, 2022 ... Two-way radio has came a long way from the time it was invented to what we know it as today. In fact, the industry hasn't stopped growing. I built a crystal radio in 1952 when I was 12 years old. It came as a kit from Allied Radio in Chicago for $2.50. I spent many an hour down in our basement ... That is more or less why he never did get credit for inventing radio despite the fact he did patent it in the US the same year that Marconi got his first ... At the time, vacuum tubes were king - Bell Labs' 1947 transistor invention was not taken seriously by the major radio manufacturers...RCA, Sylvania and ... Oct 30, 2018 ... When was the first public radio broadcast in the UK? When was ... In Our Time: The Invention of Radio (BBC Radio 4) · History of the BBC ... In the mid-1890s, building on techniques physicists were using to study electromagnetic waves, Guglielmo Marconi developed the first apparatus for long-distance ... In 1893 the inventor Nikolai Tesla demonstrated a wireless radio in St. Louis, Missouri. Despite this demonstration, it was Guglielmo Marconi who is often ... A 26-year old engineer named Grote Reber built the first dish antenna radio telescope in 1937. He used wooden rafters, galvanized sheet metal, and spare parts. Radio has played a role in world politics and strategy since its invention ... In the same year Navy radio proved its usefulness in a national emergency ... The station's creator and owner, an entrepreneur, inventor, and manufacturer named Powel Crosley Jr. ... He agreed to buy his nine-year-old a radio, but when he ...