Jansky , Karl Guthe
(1905–1950) American radio engineer
Born in Norman, Oklahoma, Jansky was educated at the University of Wisconsin and started his career with the Bell Telephone Laboratories in 1928. He was given the task of investigating factors that could interfere with radio waves used for long-distance communication. He designed a linear directional antenna, which, mounted on wheels from a Model T Ford, could scan the sky. He identified all the sources of interference, such as thunderstorms, except for one weak emission. This he found to be unconnected with the Sun and in 1931 he discovered that the radio interference came from the stars.
Jansky published his findings in the Proceedings of the Institute of Radio Engineers in December 1932, the date that marks precisely the beginnings of radio astronomy. In his paper Jansky made two astute comments: he suggested that the radio emission was somehow connected with the Milky Way and that it originated not from the stars but from interstellar ionized gas. He did not pursue his suggestions and it was left to Grote Reber, the amateur astronomer, to keep the subject alive until it developed into a major research field after 1945.
The unit of radio-wave emission strength was named the jansky in his honor.

Scientists. . 2011.

Look at other dictionaries:

  • Jansky, Karl (Guthe) — born Oct. 22, 1905, Norman, Okla., U.S. died Feb. 14, 1950, Red Bank, N.J. U.S. engineer. He graduated from the University of Wisconsin and went to work for Bell Telephone Laboratories. Assigned to track down sources of static that could… …   Universalium

  • Jansky, Karl (Guthe) — (22 oct. 1905, Norman, Okla., EE.UU.–14 feb. 1950, Red Bank, N.J.). Ingeniero estadounidense. Se graduó en la Universidad de Wisconsin y trabajó para los laboratorios de la empresa Bell Telephone, donde se le asignó estudiar las fuentes de… …   Enciclopedia Universal

  • Karl Guthe Jansky — (* 22. Oktober 1905 in Norman, Oklahoma; † 14. Februar 1950 in Red Bank, New Jersey) war ein US amerikanischer Physiker und Radioingenieur. Er wurde zum Entdecker der Radioastronomie, als er 1932 feststellte, da …   Deutsch Wikipedia

  • Karl Guthe Jansky — Karl Jansky Karl Jansky Karl Guthe Jansky, né à Normand (Oklahoma) le 22 octobre 1905 et mort le 14 février 1950, est un physicien et ingénieur radio américain. Il découvrit …   Wikipédia en Français

  • Karl Guthe Jansky — Nacimiento 22 de octubre de 1905 Territorio de Oklahoma Falleci …   Wikipedia Español

  • Karl Guthe Jansky — Infobox Scientist name = Karl Guthe Jansky box width = image size = 150px caption = Karl Guthe Jansky birth date = October 22, 1905 birth place = Territory of Oklahoma death date = February 14, 1950 death place = Red Bank, New Jersey residence =… …   Wikipedia

  • Karl G. Jansky — Karl Guthe Jansky Karl Guthe Jansky (* 22. Oktober 1905 in Norman, Oklahoma; † 14. Februar 1950 in Red Bank, New Jersey) war ein US amerikanischer Physiker und Radioingenieur. Er wurde zum Entdecker der Radioastronomie, als er 1932 feststellte,… …   Deutsch Wikipedia

  • Karl Jansky — Karl Guthe Jansky Karl Guthe Jansky (* 22. Oktober 1905 in Norman, Oklahoma; † 14. Februar 1950 in Red Bank, New Jersey) war ein US amerikanischer Physiker und Radioingenieur. Er wurde zum Entdecker der Radioastronomie, als er 1932 feststellte,… …   Deutsch Wikipedia

  • Jansky (disambiguation) — Jansky may refer to:* Jansky (symbol Jy), a non SI unit of electromagnetic flux, named after Karl Guthe Jansky * Jansky noise, high frequency static disturbances of cosmic origin * Jansky, a lunar crater, named after Karl Guthe Jansky * Karl… …   Wikipedia

  • Janský — Jansky ist die Einheit für die Strahlungsintensität in der Radioastronomie, siehe Jansky und ist der Name von folgenden Personen Filip Jánský (1922–1987), tschechischer Schriftsteller Jan Janský (1873–1921), tschechischer Arzt, Psychiater und… …   Deutsch Wikipedia

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