tracing the origins and significant early discoveries in the field of radio astronomy and its contributions to our understanding of the universe

Of the four chief players in American radio's early years, Guglielmo Marconi, an Italian inventor/entrepreneur, and American inventor/entrepreneurs Fessenden, ... AM (amplitude modulation) Radio, in a form that we would recognize today, began in 1906, when Reginald A. Fessenden transmitted the first broadcast containing ... Facts and Folklore about Nathan Stubblefield by Bob Lochte. Around Murray, Kentucky, folks say he created radio. For nearly 70 years, they claimed that Nathan ... The first laboratory demonstration took place on 23 December 1947. Bell publicly announced the new invention on 30 June 1948. At first the US military bought ... Nov 2, 2021 ... The invention of the two-way radio changed communications dramatically. When people could communicate back and forth in real time using one ... ... created by Theremin decades before. RFID was, however, officially invented in 1983 by Charles Walton when he filed the first patent with the word 'RFID'. Experiments by Heinrich Rudolf Hertz between 1880 and 1890 proved the existence of electromagnetic waves. His successful work took place after earlier ... 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 ... 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 ... Nov 11, 2022 ... Edison, his team, and competitors worked over the years to develop a better microphone for those wax cylinders. (At the time wax cylinder ...