death_place death_date birth_place birth_date article_title name
scotia , new york , united states 07 july 1954 rostov , russian empire 12 july 1883 saul dushman
 saul dushman
saul dushman

saul dushman -lrb- july 12 , 1883 -- july 7 , 1954 -rrb- 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 -lrb- ge -rrb- .
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 , atomic structure , electron emission , unimolecular force , and high vacuum , and he authored several standard science textbooks .
his textbook `` scientific foundations of vacuum technique '' -lrb- 1922 and 1949 -rrb- 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 .
he died in scotia , new york .
