Saul Dushman (July 12, 1883 – July 7, 1954) was a Russian-American physical
chemist.
Dushman was born on July 12, 1883 in
Rostov, Russia; he immigrated to the
United States in 1891. He received a doctorate from the
University of Toronto in 1912. That year, he joined the Research Laboratory of
General Electric Company (GE). He would work at GE for the rest of his career except for a 1922-1925 stint as the Research Division director at Edison Lamp Works. His main research interests were
quantum mechanics,
electromotive force
In electromagnetism and electronics, electromotive force (also electromotance, abbreviated emf, denoted \mathcal or ) is an energy transfer to an electric circuit per unit of electric charge, measured in volts. Devices called electrical ''transd ...
,
atomic structure,
electron emission, unimolecular force, and
high vacuum
''High Vacuum'' is a science fiction novel by Charles Eric Maine. It was first published in 1957 by Hodder & Stoughton.
Synopsis
The first crewed Moon ship, ''Alpha'', runs out of fuel just before landing in the Mare Imbrium and crashes, killin ...
, and he authored several standard science textbooks.
His textbook "Scientific Foundations of Vacuum Technique" (1922 and 1949) is a classic covering vacuum design principles. This book and the later editions are still in use today. It was completely revised in 1961 by his colleague James Lafferty.
His research on
thermionic emission is remembered in the form of the
Richardson-Dushman equation
Thermionic emission is the liberation of electrons from an electrode by virtue of its temperature (releasing of energy supplied by heat). This occurs because the thermal energy given to the charge carrier overcomes the work function of the mate ...
.
He died in
Scotia, New York.
Notes
References
* http://www.britannica.com/eb/article-9031599/Saul-Dushman
* http://americanhistory.si.edu/archives/d8101.htm
External links
Saul Dushman papers*
{{DEFAULTSORT:Dushman, Saul
Russian physical chemists
American physical chemists
1883 births
1954 deaths
Russian Jews
Emigrants from the Russian Empire to the United States