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Monday 6 June 2016

Scientist of the day - Karl Ferdinand Braun

Karl Ferdinand Braun was a German physicist and inventor who received the Nobel Prize for Physics in 1909. He shared the prize with another inventor and scientist Guglielmo Marconi. He was awarded the Nobel Prize for his work in the development of the technologies used in television and radio. He became interested in experimenting with wireless telegraphy at an early age. The distance that could be covered by the wireless technology developed by Marconi was about 15 kilometers only. The antenna was connected directly to the power circuit of the transmitter. Braun developed an antenna that could increase the distance by many more kilometers over which wireless transmissions could be made. He is also famous for the creation of the Cathode Ray Tube or CRT used in the design of TV screens and computer monitors later. He designed ways to control the cathode rays by changing the voltage to obtain a definite pattern on the fluorescent screen which had not been possible earlier. The oscilloscope was also his invention which is used in electrical and electronic laboratories as an instrument for measuring different electrical parameters. He also invented the first ‘cat’s whisker diode’ which led to the invention of crystal receivers for radios. 

Childhood & Early Life
Karl Ferdinand Braun was born on June 6, 1850 in Fulda, Germany to Johan Konrad Braun and Franziska Gohring Braun. He was the fourth child of his parents.

Major Works
His patented theories have been published in the books titled as ‘Electro Telegraphy by means of Condensers and Induction Coils’ and ‘Wireless Electro Transmission of Signals over Surfaces’.

Awards & Achievements
Karl Ferdinand Braun was awarded the Nobel Prize for Physics in 1909 for his path-breaking discovery work in wireless telegraphy and television technology and inventions.

Personal Life & Legacy
  • He married Amelie Buhler in 1883 while working at the Polytechnic school in Karlsruhe.
  • He had two sons and two daughters from this marriage.
  • Karl Ferdinand Braun died on April 20, 1918 in Brooklyn New York, United States, before the end of the First World War.