History of the United States 6–3 decision in Korematsu v. United States Supreme Court case. Research and development took flight as well, best seen in the Manhattan Project, a secret effort to harness nuclear fission to produce highly destructive atomic bombs. From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the U.S. Army Corps of Engineers. Nuclear physicist J. Robert Oppenheimer was the director of the Los Alamos Laboratory that designed the actual bombs. The first nuclear device ever detonated was an implosion-type bomb at the Trinity test, conducted at New Mexico's Alamogordo Bombing and Gunnery Range on
Hans Kronberger (physicist) Hans Kronberger (physicist) Hans Kronberger CBE, FRS (28 July 1920 – 29 September 1970) was a British physicist. During his career with the UK Atomic Energy Authority he made important contributions to the development of the British thermonuclear bomb and nuclear power engineering, especially in the field of isotope separation. Hans Kronberger was born of Jewish parents in Linz, Austria, where his father was a leather merchant. Kronberger attended the Akademische Gymnasium in Linz, matriculating in Mathematics, Latin, Greek and German; he was a brilliant scholar. After the Anschluss, the annexation of Austria by Nazi Germany in 1938, Kronberger fled