a detailed look at the history and programming of National Public Radio (NPR)

The police officer will receive this either on a PC based police radio or a mobile data computer located in their car. ... The next year the Federal ... In the mid-1890s, building on techniques physicists were using to study electromagnetic waves, Guglielmo Marconi developed the first apparatus for long-distance ... It was invented in 1947, and even several years later, it was considered by ... radio equipment. Yet the transistor is fundamental for all modern ... Philco did not observe "model years" until June 1934, which marked the introduction of their 1935 model lineup. Normally, Philco introduced a new radio line ... At the time, vacuum tubes were king - Bell Labs' 1947 transistor invention was not taken seriously by the major radio manufacturers...RCA, Sylvania and ... 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 ... Inventor Trevor Baylis came up with a solution to this problem in 1996, when he introduced the world to the first ever hand-powered, wind-up radio. Nikola Tesla—was a Serbian-. American inventor who discovered the basis for most alternating-current machinery. In 1884, a year after coming to the United ... Nov 1, 2012 ... Furthermore, contrary to what you might have read, the U.S. Supreme Court never said that he was -- not in 1943, not in any other year. If fact, ... Introduced in January 1946, the 2-Way Wrist Radio was an invention of industrialist Diet Smith's son Brilliant. Like ... when he was abducted and held hostage by ...