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Fessenden, Reginald Aubrey |
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Fessenden, Reginald Aubrey
Born Oct. 6, 1866, in East Bolton, Quebec, Canada; died July 22, 1932, in Hamilton, Bermuda. American scientist; specialist in electrical engineering and radio engineering. Fessenden did not have a specialized education. He began studying electromagnetic waves in 1895, and in 1899 he demonstrated the usefulness of the wireless telegraph for weather reporting. In 1900 he developed industrial models of high-frequency (60/kilohertz) induction generators. In 1901, together with the American scientist E. F. W. Alexanderson, Fessenden built a high-frequency arc generator and succeeded in transmitting the human voice by radio. He invented an electrolytic detector in 1902 and proposed a method for heterodyne reception in 1905. Fessenden was awarded more than 300 patents, mainly for his inventions in radio engineering. Many of them pertain to marine navigation and signaling, such as the sonic depth finder, various direction finders, and electroacoustic devices. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | As to why children are barred, hospital spokesman James Fessenden said children "are much more likely to be exposed, and they're much more likely to be contagious before showing symptoms. It is situated at 4224 Fessenden Street NW (between N 43rd Street & N Wisconsin Avenue), Washington, DC. The earliest radio stations were essentially radiotelegraphy webs and did not carry audio The first drafted do audio transmission that could be termed a advertise eventuated on Christmas Eve in 1906, and was drafted by Reginald Fessenden The earliest radio stations were essentially radiotelegraphy webs and did not carry audio. |
Fessenden |
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