The most significant work was done by Eugene Wigner (who came from Hungary), George Gamow (Russia), Felix Bloch (Switzerland), Hans Bethe (Germany), Edward Teller (Hungary), and Victor Weisskopf (Austria).

FORBES: A Veterans Day Story: Immigrants and the Atomic Bomb

In addition, four of the nuclear scientists who came to the United States from Europe in the 1930s later received a Nobel Prize for physics: Felix Bloch, born in Switzerland, won it in 1952, Emilio Segre (Italy) won in 1959, and Maria Mayer (Poland) and Eugene Wigner (Hungary) won the award in 1963.

FORBES: A Veterans Day Story: Immigrants and the Atomic Bomb