fessenden's radio experiments

At the time, vacuum tubes were king - Bell Labs' 1947 transistor invention was not taken seriously by the major radio manufacturers...RCA, Sylvania and ... Jan 21, 2022 ... The Long Blue Line: Coast Guard pioneers the marine radio over 100 years ago! ... created a new challenge for communications. Early ... Invented in the early twentieth century, radio provided a form of entertainment that Americans could access in their homes. The first radio stations launched in ... Oct 30, 2020 ... In 1920, employees of inventor and industrialist George Westinghouse hit upon an idea to boost radio sales by providing programming that ... In July 1986 Marconi made the first demonstration of his invention, the radio transmitter and receiver, for the British government. In December 1901, Marconi ... Jul 26, 2023 ... Let's take a closer look at radio advertising history and how audio ads have advanced over the years, from the very first radio commercial to ... Apr 20, 2023 ... It was when the tuning head was able to be packaged separately from the amplifier when radio became practical for automotive use. Craig ... 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. Radio went on to become an essential tool for the army and a means of receiving information and entertainment for households. In 1895, the Lumière brothers ... 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 ...