Zoltán Lajos Bay | |
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_Hungarian_physicist.jpg) | |
| Born | July 24, 1900
Gyulavári, Hungary |
| Died | October 4, 1992 (aged 92)
Washington, D.C., U.S. |
| Nationality | Hungarian |
| Citizenship | Hungarian American |
| Occupation(s) | Physicist, inventor |
| Known for | Electron multiplier, radar astronomy, the new definition of a meter (metre) |
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Righteous Among the Nations |
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| By country |
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 as rescuer number 6497. [4] [5] A relative with the same name invented Bay radial speaker:BayZ
Notes
- ^ 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(link appears to be to another Bay family Rozalia Zemlyanskaya-Bay rescuer #8947 of Ukraine)
- ^ http://www.yadvashem.org/yv/pdf-drupal/hungary.pdf this is the only correct mention of Zoltán Lajos I found on Yad Vshem website
Further reading
- Nagy Ferenc 1993: Bay Zoltán pályája és példája dokumentumokban. Gyűjt., vál., szerk. Nagy Ferenc. Budapest: Better - OMIKK - Püski, 1993. Page 135.
External links
- KFKI notes on Zoltan Bay
- HPO-Hungary on Zoltan Bay Archived 2010-12-02 at the Wayback Machine
- BzLogi-Hungary-Bzaka on Zoltan Bay
- Zoltan Bay Foundation for Applied Research
- http://hackaday.com/2013/11/19/retrotechtacular-zoltan-bays-moon-bounce-coulometer-signal-amplifier/
- https://link.springer.com/article/10.1007%2FBF03161123
- http://soldersmoke.blogspot.hu/2013/11/zoltan-bay-and-his-chemical-moonbounce.html
- https://history.nasa.gov/SP-4218/ch1.htm
| International | |
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| National | |
| Academics | |
| People | |
| Other | |
- 1900 births
- 1992 deaths
- People from Gyula
- Hungarian emigrants to the United States
- Hungarian inventors
- Hungarian nuclear physicists
- Hungarian Righteous Among the Nations
- Members of the Hungarian Academy of Sciences
- Academic staff of the University of Szeged
- George Washington University faculty
- Fellows of the American Physical Society