About J. Hans D. Jensen
Johannes Hans Daniel Jensen (German: [ˈhans ˈjɛnzn̩]; 25 June 1907 – 11 February 1973) was a German theoretical physicist. During World War II, Jensen worked on the German nuclear energy project, known as the Uranium Club, where he contributed to the separation of uranium isotopes. After the war, Jensen was a professor at the University of Heidelberg. He was a visiting professor at the University of Wisconsin–Madison, the Institute for Advanced Study, University of California, Berkeley, Indiana University, and the California Institute of Technology. Jensen was awarded the 1963 Nobel Prize in Physics along with Eugene Wigner and Maria Goeppert Mayer, sharing one half of the Prize with the latter "for their discoveries concerning nuclear shell structure." == Education == Johannes Hans Daniel Jensen was born on 25 June 1907 in Hamburg, Germany. From 1926 to 1931, Jensen studied physics, mathematics, physical chemistry, and philosophy at the University of Freiburg and the University of Hamburg. He received his Doctor rerum naturalium in 1932 and his habilitation in 1936, both from the University of Hamburg. == Career == In 1937, Jensen became a docent at the University of Hamburg, and began working with Paul Harteck, Director of the University's Physical Chemistry Department and advisor to the Heereswaffenamt (HWA – Army Ordnance Office) on explosives. Harteck and his teaching assistant, Wilhelm Groth, made contact with the Reichskriegsministerium (RKM – Reich Ministry of War) on 24 April 1939 to tell them of potential military applications of nuclear chain reactions. Military control of the German nuclear energy project, also known as the Uranverein (Uranium Club), began on 1 September 1939, the day that Nazi Germany initiated World War II by invading Poland.
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