Otto Robert Frisch FRS (1 October 1904 – 22 September 1979) was an Austrian-British physicist. With his German-British collaborator Rudolf Peierls he designed the first theoretical mechanism for the detonation of an atomic bomb in 1940.
Sir Rudolf Ernst Peierls, CBE (5 June 1907 – 19 September 1995) was a German-born British physicist. Rudolf Peierls had a major role in Britain's nuclear programme, but he also had a role in many modern sciences. His obituary in Physics Today describes him as "a major player in the drama of the eruption of nuclear physics into world affairs...".