sentences:  In 1933 and 1934, Finkelnburg took a Rockefeller Foundation Fellowship and did postdoctoral research and studies on continuous spectra, with Robert Andrews Millikan at the California Institute of Technology.In 1936, he became an extraordinarius professor at the Technische Hochschule Darmstadt.From 1942 to 1945, he was and extraordinarius professor and director of the physics department at the University of Strasbourg.