Arrival in the U.S.
Origin of interest in nuclear physics, discussions of compound nucleus, Copenhagen, 1936; work on interaction of evaporation and nuclear temperatur
Engineering physics at Lehigh University, 1926-1930; graduate work in physics at University of Wisconsin, 1930-1934; Ann Arbor summer school, 1934;
Early training as a physicist; quartz-fibre electrometer; high-voltage installations, above 200 kilovolts; high-voltage accelerator, especially Van
Natural radioactivity; ideas of nuclear constitution, size in 1920s; Gamow-Condon-Gurney theory of alpha decay 1928; discovery of neutron 1932; Cam