18 Facts About Karl Jansky

Karl Guthe Jansky was an American physicist and radio engineer who in April 1933 first announced his discovery of radio waves emanating from the Milky Way in the constellation Sagittarius.

Karl Jansky is considered one of the founding figures of radio astronomy.

Karl Guthe Jansky was born 1905 in what was then the Territory of Oklahoma where his father, Cyril M Jansky, was Dean of the College of Engineering at the University of Oklahoma at Norman.

Karl Jansky was a teacher throughout his active life, retiring as Professor of Electrical Engineering at the University of Wisconsin.

Karl Jansky was an engineer with a strong interest in physics, a trait passed on to his sons.

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Karl Jansky was named after Dr Karl Eugen Guthe, a Professor of Physics at the University of Michigan who had been an important mentor to Cyril M Jansky.

Karl Jansky's mother, born Nellie Moreau, was of French and English descent.

Karl Jansky attended college at the University of Wisconsin where he received his BS in physics in 1927.

Karl Jansky stayed an extra year at Madison, completing all the graduate course work for a Masters degree in physics except for the thesis.

At Bell Telephone Laboratories, Karl Jansky built a directional antenna designed to receive radio waves at a frequency of 20.

Karl Jansky spent over a year investigating the source of the third type of static.

Karl Jansky determined that the signal repeated on a cycle of 23 hours and 56 minutes.

Karl Jansky discussed the puzzling phenomena with his friend, astrophysicist Albert Melvin Skellett, who pointed out that the observed time between the signal peaks was the exact length of a sidereal day; the time it took for "fixed" astronomical objects, such as a star, to pass in front of the antenna every time the Earth rotated.

Karl Jansky wanted to further investigate the Milky Way radio waves after 1935, but he found little support from either astronomers, for whom it was completely foreign, or Bell Labs, which could not justify, during the depression, the cost of research on a phenomenon that did not significantly affect trans-Atlantic communications systems.

Karl Jansky's discovery had come in the midst of the Great Depression, and observatories were wary of taking on any new and potentially risky projects.

Karl Jansky was a resident of Little Silver, New Jersey, and died at age 44 in a Red Bank, New Jersey, hospital due to a heart condition.

Full-scale replica of Karl Jansky's original rotating telescope is located on the grounds of the Green Bank Observatory in Green Bank, West Virginia, near a reconstructed version of Grote Reber's 9-meter dish.

Karl Jansky noise is named after Karl Jansky, and refers to high frequency static disturbances of cosmic origin.