Joseph Rotblat

Sir Joseph Rotblat KCMG CBE FRS
Los Alamos badge photograph, 1944
Born	Józef Rotblat (1908-11-04)4 November 1908 Warsaw, Congress Poland
Died	31 August 2005(2005-08-31) (aged 96) London, United Kingdom
Nationality	Polish-British
Alma mater	Free University of Poland University of Warsaw University of Liverpool University of London
Known for	Campaigning for nuclear disarmament Manhattan Project Hippocratic Oath for scientists
Spouse	Tola Gryn
Awards	Knight Commander of the Order of St Michael and St George (1998) Nobel Peace Prize (1995) Fellow of the Royal Society (1995) Albert Einstein Peace Prize (1992) Commander of the Order of the British Empire (1965)
Scientific career
Fields	Physics
Institutions	Scientific Society of Warsaw Free University of Poland University of Warsaw University of Liverpool Los Alamos National Laboratory St Bartholomew's Hospital University of London University of Edinburgh
Thesis	Determination of a number of neutrons emitted from a source (1950)
Doctoral advisor	James Chadwick
Rotblat's voice from the BBC Radio 4 programme Great Lives broadcast 13 January 2012[1]

Sir Joseph Rotblat KCMG CBE FRS (4 November 1908 – 31 August 2005) was a Polish and British physicist.^[2] During World War II he worked on Tube Alloys and the Manhattan Project, but left the Los Alamos Laboratory on grounds of conscience after it became clear to him in 1944 that Germany had ceased development of an atomic bomb.

His work on nuclear fallout was a major contribution toward the ratification of the 1963 Partial Nuclear Test Ban Treaty. A signatory of the 1955 Russell–Einstein Manifesto, he was secretary-general of the Pugwash Conferences on Science and World Affairs from their founding until 1973 and shared, with the Pugwash Conferences, the 1995 Nobel Peace Prize "for efforts to diminish the part played by nuclear arms in international affairs and, in the longer run, to eliminate such arms."^[3]