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2 Further reading  





3 External links  














Zoltán Lajos Bay






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This is an old revision of this page, as edited by Rlevente (talk | contribs)at15:14, 19 January 2017 (External links). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
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Zoltán Lajos Bay
Born(1900-07-24)July 24, 1900
Gyulavári, Hungary
DiedOctober 4, 1992(1992-10-04) (aged 92)
NationalityHungarian
CitizenshipHungarian
American
Occupation(s)Physicist, inventor
Known forElectron multiplier, radar astronomy, the new definition of a meter (metre)
Gravestone of Zoltán Bay (Gyulavári, Hungary)

Zoltán Lajos Bay (July 24, 1900 in Gyulavári – October 4, 1992 in Washington, D.C.)[1] was a Hungarian physicist, professor, and engineer who developed technologies, including tungsten lamps and microwave devices. He was the leader of the second group to observe radar echoes from the Moon (Moonbounce). From 1930, he worked at the University of Szeged as a professor of theoretical physics.

In 1923 at Tungsram Ltd., a research laboratory was established for improving light sources, mainly electric bulbs.[1] The head of that laboratory was Ignác Pfeifer, whose research staff included Zoltán Bay, along with Tivadar Millner, Imre Bródy, György Szigeti, Ernő Winter, and many others.[1]

György Szigeti worked together with Zoltán Bay on metal-vapor lamps and fluorescent light sources. They received a U.S. patent on "Electroluminescent light sources" which were made of silicon carbide; these light sources were the ancestors of light-emitting diodes (LEDs).[1]

In 1955, Zoltán Bay became head of the Department of Nuclear Physics in the National Bureau of Standards (NBS, called today NIST), where he measured the velocity and frequency of light by a previously unknown measurement method.[2][failed verification] As a result of Bay's research, the 1983 conference of the International Weights and Measures Bureau accepted, as a standard, the definition of a meter (metre)[3]as recommended by Zoltán Bay.

In 1998 the State of Israel recognized him as among the Righteous Among the Nations and listed his name at Yad Vashem.[4]

Notes

  1. ^ a b c d "Fizikai Szemle 1999/5 - Zsolt Bor: OPTICS BY HUNGARIANS" (with Zoltán Bay), József Attila University, Szeged, Hungary, 1999 KFKI-Hungary-Bor
  • ^ "Zoltán Bay, whose name the Foundation bears" (life), Bay Zoltán Institute of Logistics and Production Engineering (Bay-Logi), Bay Zoltán Foundation for Applied Research, 1994, webpage:BZLogi Biography at Bay Zoltán Foundation.
  • ^ Resolution 1 of the 17th CGPM (CGPM, 1983), retrieved from BIPM database (BIPM, n.d.) on 24 August 2008.
  • ^ Zoltán Lajos Bay – his activity to save Jews' lives during the Holocaust, at Yad Vashem website
  • Further reading

    External links


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    This page was last edited on 19 January 2017, at 15:14 (UTC).

    This version of the page has been revised. Besides normal editing, the reason for revision may have been that this version contains factual inaccuracies, vandalism, or material not compatible with the Creative Commons Attribution-ShareAlike License.



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