the story of microbroadcasting efforts

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 ... Jan 21, 2016 ... In 1906, Canadian inventor Reginald Fessenden sent the faint sound of his voice and violin by radio. The next year, Lee de Forest invented ... May 18, 2023 ... The Early Years. The term “FM” is an abbreviation for “frequency modulation,” which describes a specific method of encoding audio signals onto ... Jun 3, 2017 ... Commercial broadcasting didn't start until 1920, but the University of Wisconsin was experimenting with wireless transmission and in December ... Nov 7, 2008 ... On June 21, 1909, more than 10 years prior to the launching of America's first commercially licensed radio station, a young inventor named ... May 26, 2020 ... Lamarr's path to inventing the cornerstone of Wi-Fi began when she heard about the Navy's difficulties with radio-controlled torpedoes. Armstrong was a pioneer of radio engineering, credited as the inventor of FM radio. ... Introduced in Japan in 1979 and in the US the following year, the ... The invention of radiocarbon dating elegantly merged chemistry and physics to develop a scientific method that can accurately determine the age of organic ... 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 ... In 1896, Guglielmo Marconi invented the first rendition of the radio. After ... when radio channels were in short supply for police officers. Radios ...