Radio 2

The History of the Radio

By c.holmes

  • Carbon Detector

    Carbon Detector
    In 1878, David E. Hughes noticed that sparks could be heard in a telephone receiver when experimenting with his carbon microphone. He developed this carbon-based detector further and eventually could detect signals over a few hundred yards.

  • The radio wave is discovered

    The radio wave is discovered
    In 1888 Heinrich Rudolf Hertz was able to conclusively prove transmitted airborne electromagnetic waves in an experiment confirming James Maxwell's theory of electromagnetism. This was one of the first steps to creating the radio.

  • The first "radio"

    The first "radio"
    Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves. Over the years, people would build onto it, giving it clearer sound, more streamlined and handheld!

  • The first voice

    The first voice
    In 1900, Brazilian priest Roberto Landell de Moura transmitted the human voice wirelessly. People could now use phones and radios without wires, allowing easier use.

  • The first radio broadcast

    The first radio broadcast
    On Christmas Eve 1906, Reginald Fessenden used a synchronous rotary-spark transmitter for the first radio program broadcast, from Ocean Bluff-Brant Rock, Massachusetts. People could now hear broadcasts from all over the globe.

  • The first radio factory

    The first radio factory
    In June 1912 Marconi opened the world's first purpose-built radio factory at New Street Works in Chelmsford, England.

  • The first handheld radio

    The first handheld radio
    In 1954, the Regency company introduced a pocket transistor radio, the TR-1, powered by a "standard 22.5 V Battery." People could now bring radios anywhere they wanted.

  • Citations

    The People History -- Steve Pearson. (n.d.). Radio. Retrieved October 05, 2017, from http://www.thepeoplehistory.com/radio.html History of radio. (2017, October 04). Retrieved October 05, 2017, from https://en.wikipedia.org/wiki/History_of_radio Us, H. Q. (n.d.). Retrieved October 05, 2017, from http://www.techwholesale.com/history-of-the-radio.html (n.d.). Retrieved October 05, 2017, from http://www.personal.psu.edu/jtk187/art2/radio.htm