Otto Robert Frisch: Frisch-Peierls Memo

Otto Robert Frisch

Austrian-born nuclear physicist who later acquired British citizenship. A nephew of Lise Meitner, he is known for theoretical interpretation of Otto Hahn's experimental results together with Meitner, explaining the phenomenon of nuclear fission in 1939. In addition, together with Rudolf Peierls, he co-authored the Frisch-Peierls memorandum in 1940, theoretically demonstrating the feasibility of an atomic bomb using a small amount of uranium-235. During World War II, he participated in the Manhattan Project and led critical mass experiments at the Los Alamos Laboratory. After the war, he continued research and education in nuclear physics at the University of Cambridge and other institutions.

Timeline

Category
Element

Year	Otto Robert Frisch
1904	Birth of Otto Robert Frisch (Period: October 1, 1904, Location: Vienna (present-day Republic of Austria))
1922	Studying Physics at the University of Vienna (Age: 17 years old, Period: 1922–1926, Location: Vienna, Austria)
1927	Research in Berlin (Age: 22 years old, Period: 1927–1930, Location: Berlin, Germany)
1930	Research with Otto Stern (Age: 25 years old, Period: 1930–1933, Location: Hamburg, Germany)
1933	Establishment of the Nazi Regime and Expulsion from Germany (Age: 28 years old, Period: 1933, Location: Hamburg and Berlin, Germany) Emigration to London (Otto Robert Frisch, Age: 28 years old, Period: 1933–1934, Location: London, United Kingdom)
1934	Research at the Institute for Theoretical Physics (Niels Bohr Institute, Age: 29 years old, Period: 1934–1939, Location: Copenhagen, Denmark)
1938	Discovery and Naming of Nuclear Fission (Age: 33 years old, Period: 1938–1939, Location: Sweden, Denmark) Theoretical Interpretation of Nuclear Fission (Age: 34 years old, Period: December 1938 – January 1939, Location: Kungälv, Sweden; Copenhagen, Denmark)
1939	World War II (Age: 34 years old, Period: 1939–1945, Location: UK, France, North Africa, Mediterranean, Atlantic, etc.) Research at the University of Birmingham (Age: 34 years old, Period: 1939–1940, Location: Birmingham, England)
1940	Nuclear Research at the University of Liverpool (Age: 35 years old, Period: 1940–1943, Location: Liverpool, England) Frisch-Peierls Memorandum (Age: 35 years old, Period: March–April 1940, Location: Birmingham, England)
1943	Manhattan Project at Los Alamos (Age: 38 years old, Period: 1943–1945, Location: Los Alamos, New Mexico, United States)
1945	Dragon Experiment - World's First Prompt Criticality (Age: 40 years old, Period: 1945, Location: Los Alamos, New Mexico, United States) Trinity Test (Age: 40 years old, Period: July 16, 1945, Location: Near Alamogordo, New Mexico, United States) Witnessing the Trinity Test (Age: 40 years old, Period: July 16, 1945, Location: Near Alamogordo, New Mexico, United States)
1946	Head of Nuclear Physics Division at Harwell Atomic Energy Research Establishment (Age: 41 years old, Period: 1946–1947, Location: Harwell, England)
1947	Jacksonian Professor of Natural Philosophy at the University of Cambridge (Age: 42 years old, Period: 1947–1972, Location: Cambridge, England)
1951	Marriage (Otto Robert Frisch, Ursula "Ulla" Blau, Age: 46 years old, Period: 1951, Location: Cambridge, England)
1954	Head of the Cavendish Laboratory (Age: 49 years old, Period: 1954–1959, Location: Cambridge, England)
1960	Development of SWEEPNIK (Age: 55 years old, Period: 1960s–Early 1970s, Location: Cambridge, England)
1969	Establishment of Laser-Scan Ltd. (Age: 64 years old, Period: 1969, Location: Cambridge, England)
1972	Retirement from University Professorship (Otto Robert Frisch, Age: 67 years old, Period: 1972, Location: Cambridge, England)
1979	Death of Otto Robert Frisch (Age: 74 years old, Period: September 22, 1979)

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Europe World

Group	List
British Politics	David Lloyd George Winston Churchill Stanley Baldwin Neville Chamberlain Clement Attlee Anthony Eden Edward Wood Ernest Bevin
French Politics	Georges Clemenceau Charles de Gaulle Paul Reynaud Édouard Daladier Léon Blum Philippe Pétain Maxime Weygand Maurice Gamelin
Jewish relief	Anne Frank Etty Hillesum Edith Stein Raoul Wallenberg Aristides de Sousa Mendes Varian Fry Nicholas Winton Chiune Sugihara
Nuclear Science	Lise Meitner James Chadwick John Cockcroft Ernest Walton Patrick Blackett Mark Oliphant Otto Hahn Otto Robert Frisch

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Otto Robert Frisch: Frisch-Peierls Memo

Otto Robert Frisch

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