Braun, Karl Ferdinand
Published: August 28, 2006, 6:53 pm
Updated: August 28, 2006, 6:53 pm
This article has been reviewed by the following Topic Editor:
Tom Lawrence
Karl Ferdinand Braun (1850-1918), a German physicist, shared the Nobel Prize for Physics in 1909 with Guglielmo Marconi for the development of wireless telegraphy. Braun’s early work was in the field of electricity where he published papers on deviations from Ohm's Law and electromotive forces. He invented what is now called Braun's electrometer, and a cathode-ray oscillograph, constructed in 1897. Braun improved Marconi's transmitting system by devising a sparkless antenna circuit (patented in 1899) that linked transmitter power to the antenna circuit inductively. This invention greatly increased the broadcasting range of a transmitter and was subsequently used in radar, radio, and television applications.
Further Reading
Karl Ferdinand Braun - Biography (The Nobel Foundation)
Karl Ferdinand Braun - Biography (Institute of Electrical and Electronics Engineers Virtual Museum)
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Citation
Cutler J. Cleveland (Lead Author);Tom Lawrence (Topic Editor) "Braun, Karl Ferdinand". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth August 28, 2006; Last revised Date August 28, 2006; Retrieved May 26, 2013 <http://www.eoearth.org/article/Braun,_Karl_Ferdinand>
The Author
Cutler J. Cleveland is Professor of Earth and Environment at Boston University, where he also is on the faculty of the Center for Energy and Environmental Studies. Professor Cleveland is Editor-in-Chief of the Encyclopedia of Energy (Elsevier, 2004), winner of an American Library Association award, the Dictionary of Energy (Elsevier, 2005), Handbook of Energy (Elsevier, forthcoming), and is the Founding Editor-in-Chief of the Encyclopedia of Earth. He is the recipient of the Adelma ... (Full Bio)
Karl Ferdinand Braun (1850-1918), a German physicist, shared the Nobel Prize for Physics in 1909 with Guglielmo Marconi for the development of wireless telegraphy. Braun’s early work was in the field of electricity where he published papers on deviations from Ohm's Law and electromotive forces. He invented what is now called Braun's electrometer, and a cathode-ray oscillograph, constructed in 1897. Braun improved Marconi's transmitting system by devising a sparkless antenna circuit (patented in 1899) that linked transmitter power to the antenna circuit inductively. This invention greatly increased the broadcasting range of a transmitter and was subsequently used in radar, radio, and television applications.
Further Reading
Karl Ferdinand Braun - Biography (The Nobel Foundation)
Karl Ferdinand Braun - Biography (Institute of Electrical and Electronics Engineers Virtual Museum)
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