Jewish culture and many Jewish scientists had a significant role in the project. The theoretical physicist Robert Oppenheimer, often considered as the ""father of the atomic bomb"", was chosen to direct the Manhattan Project at Los Alamos National Laboratory in 1942. The physicist Leó Szilárd, that conceived the nuclear chain reaction; Edward Teller, ""the father of the hydrogen bomb"" and Stanislaw Ulam; Eugene Wigner contributed to theory of Atomic nucleus and Elementary particle; Hans Bethe whose work included Stellar nucleosynthesis and was head of the Theoretical Division at the secret Los Alamos laboratory; Richard Feynman, Niels Bohr, Victor Weisskopf and Joseph Rotblat.
Bulletin of the Atomic Scientists Board takes into account when deciding the time of the Clock each year. As of August 2018, the "Bulletin"'s Board of Sponsors boasts 13 Nobel Laureates In the 1950s, the "Bulletin" was involved in the formation of the Pugwash Conferences on Science and World Affairs, annual conferences of scientists concerned about nuclear proliferation, and, more broadly, the role of science in modern society. The founder and first editor of the "Bulletin of the Atomic Scientists" was biophysicist Eugene Rabinowitch (1901–1973). He founded the magazine with physicist Hyman Goldsmith. Rabinowitch was a professor of botany and biophysics at the University of