radio and tv

By manojovicjam

  • waves through space

    waves through space
    James Clerk Maxwell showed in theoretical and mathematical form in 1864 that electromagnetic waves could propagate through free space.

  • wireless telegraphy

    wireless telegraphy
    in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system

  • first radio station

    first radio station
    in 1897 he established a radio station in England. Marconi would go on to win the Nobel Prize in Physics

  • human voice voiced wirelessly over a half a mile

    human voice voiced wirelessly over a half a mile
    In 1900, Brazilian priest Roberto Landell de Moura transmitted the human voice wirelessly for a distance of approximately a half mile.

  • first radio program broadcast

    first radio program broadcast
    On Christmas Eve 1906, Reginald Fessenden used a synchronous rotary-spark transmitter for the first radio program broadcast,

  • first broadcasted opera

    first broadcasted opera
    on August 27, 1920, Sociedad Radio Argentina aired a live performance of Richard Wagner's opera Parsifal f

  • first news program broadcasted

    first news program broadcasted
    The first radio news program was broadcast August 31, 1920 by station 8MK in Detroit,

  • mobile phone service

    mobile phone service
    In 1947 AT&T commercialized the Mobile Telephone Service.

  • pocket radio

    pocket radio
    In 1954, the Regency company introduced a pocket transistor radio,

  • rolling stones concert

    rolling stones concert
    In November 1994, a Rolling Stones concert was the "first major cyberspace multicast concert." Mick Jagger opened the concert by saying, "I want to say a special welcome to everyone that's, uh, climbed into the Internet tonight and, uh, has got into the M-bone. And I hope it doesn't all collapse."[13]