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.
Munir Ahmad Khan Munir Ahmad Khan Munir Ahmad Khan (; b. 20 May 1926 – 22 April 1999; ), was a Pakistani nuclear engineer and a nuclear physicist, who served as the chairman of the Pakistan Atomic Energy Commission (PAEC) from 1972 to 1991. He is credited among the persons who are called as "father of the Pakistan's atomic bomb project", for their role in Pakistan's integrated atomic bomb project— the clandestine Cold war program. Khan was technical director of the programme to develop nuclear weapons, which led to the Chagai-I nuclear testing in May 1998 in Balochistan. A technical adviser to the