Karl Ferdinand Braun (1850-1918)

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Date
1900 ca.
Credit Line
Photogravure by Gen. Stab. Lit. Anst. (Generalstabens Litografiska Anstalt), courtesy AIP Emilio Segre Visual Archives, Weber Collection
Object ID
500004670

In addition to discovering the point-contact diode and inventing the cathode ray tube (CRT), Braun received the 1909 Nobel Prize in Physics for his work on wireless telegraphy.