| 单词 | Braun, Karl Ferdinand |
| 释义 | Braun, Karl Ferdinand (1850–1918) German physicist, who became professor of physics at Strasbourg in 1895. In the early 1900s he used crystals as diodes (later employed in crystal-set radios) and developed the cathode-ray tube for use as an oscilloscope. He also worked on radio and in 1909 shared the Nobel Prize for physics with Marconi |
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