Complex sentence: He taught briefly at Columbia University, was associate professor of physics at Princeton from 1928 to 1937, and associate director of research at the Westinghouse Electric Company where he worked on radar development.
Split into simpler sentences: He taught briefly at Columbia University and was associate professor of physics at Princeton from 1928 to 1937. He was associate director of research at the Westinghouse Electric Company, where he worked on radar development.