Walk Circa CRT Inventor's Hometown
Fulda, Hessen-Kassel, Germany
Take a closer look at the German great inventor's hometown in Fulda
Karl Ferdinand Braun, the inventor of the cathode ray tube and was awarded the Nobel Prize for Physics. His work of CRT collections now on display at Ferdinand-Braun-Sammlung in town.
Braun was born in Fulda, Germany, and educated at the University of Marburg and received a Ph.D. from the University of Berlin in 1872. In 1874 he discovered that a point-contact semiconductor rectifies alternating current. He became director of the Physical Institute and professor of physics at the University of Strassburg in 1895.
In 1897 he built the first cathode-ray tube (CRT) and cathode ray tube oscilloscope. CRT technology has been replaced by flat screen technologies (such as liquid crystal display (LCD), light emitting diode (LED) and plasma displays) on television sets and computer monitors. The CRT is still called the "Braun tube" in German-speaking countries (Braunsche Röhre) and in Japan (Buraun-kan).
Braun went to the United States at the beginning of World War I (before the U.S. had entered the war) to help defend the German wireless station at Sayville, New York, against attacks by the British-controlled Marconi Corporation. After the US entered the war, Braun was being detained, but could move freely within Brooklyn, New York. Braun died in his house in Brooklyn, before the war ended in 1918.