Yes, Werner Heisenberg the Noble prize winning (1932) German nuclear physicist who played a key role in the Nazi quest for the atom bomb - the first off the mark in race to build then ultimate weapon. The German projects aimed at building a bomb included a large number of impressive scientists including: " Kurt Diebner, Abraham Esau, Walther Gerlach, and Erich Schumann; Schumann was one of the most powerful and influential physicists in Germany." (wikipedia) I've singled out Heisenberg as he headed the project to build the nuclear reactor to refine the uranium fuel and was the specialist in 'particle collision' and the subsequent energy release. It was also Heisenberg who was interviewed by Albert Speer about the project and presented a realistic assessment of success, the necessary effort and a true timeline to completion (sometime in 1945). The result of that interview was Hitler pulling out all stops and removing all obstacles - particularly financial towards achieving success. The panic was of course the scramble by the US to match and beat the German effort with Project Manhattan.