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.