Academic staff of the Warsaw University of Technology

Józef Zawadzki (July 14, 1886 in Warsaw – February 22, 1951 in Zalesie, near Warsaw) was a Polish physical chemist and technologist. Father of Tadeusz (Zośka) and Anna Zawadzka.
Zawadzki was a co-founder, President and Vice-President of the Polskie Towarzystwo Chemiczne. He was a professor (from 1923) and rector (1936–1939) of Warsaw University of Technology, and a member of the Polish Academy of Learning (since 1947).
The oldest and largest traditional lecture hall at the Warsaw University of Technology is named Prof. Józef Zawadzki Auditorium.

Jan Czochralski ( YAN chokh-RAHL-skee, Polish pronunciation: [ˈjan t͡ʂɔˈxralskʲi]; 23 October 1885 – 22 April 1953) was a Polish chemist who invented the Czochralski method, which is used for growing single crystals and in the production of semiconductor wafers. It is still used in over 90 percent of all electronics in the world that use semiconductors. He is the most cited Polish scholar.There is evidence that Czochralski sheltered two Jewish women in his home until the Warsaw Uprising to save them from the Germans and some evidence that he was instrumental in financially helping a previously owned Jewish business in the ghetto.