Scientists
Karl Ferdinand Braun
brown (German Braun, not English brawn)
Also Known As Ferdinand Braun
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German physicist (1850 to 1918) who built the first cathode-ray oscilloscope, the Braun tube, in 1897, producing a narrow, steerable electron beam that traced patterns on a fluorescent screen; the device became the forerunner of the television tube and radarscope. He shared the 1909 Nobel Prize in Physics with Guglielmo Marconi for contributions to the development of wireless telegraphy.
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Invented
Braun invented the cathode ray tube in 1897; the modern oscilloscope is a later elaboration of his device.
Invented By
Built the earliest cathode-ray tube, the Braun tube, in 1897.
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