joi, 22 ianuarie 2015

David Edward Hughes

born: 16 May 1831 Corwen, Denbighshire

died: 22 January 1900 London
http://davidedwardhughes.com/

Anglo-American inventor of the carbon microphone, which used to be essential to the improvement of telephony.Hughes’smicrophone, invented in 1878, was once the forerunner of the various carbon microphones that have been utilized in most telephones produced in the twentieth century.From 1879 to 1886 Hughes carried out a series of SIL14-H006-02a


experiments by which his equipment transmitted wireless indicators up to 500 yards. The seen effects had been attributed to induction through different scientists. Hughes disagreed however didn’t know how the transmissions had been working. It was not realized until 1899, after German physicist Heinrich Hertz’s radio wave experiments in the late Eighteen Eighties, that Hughes had been the first to provide radio waves.



David Edward Hughes

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