Meitner, Lise (1878-1968)Austrian-born Swedish physicist who was one of the first scientists to study radioactive decay and the radiations emitted during this process. Her most famous work was done in 1938, in collaboration with her nephew Otto Frisch, describing for the first time the splitting or fission of the uranium nucleus under neutron bombardment. This publication provoked a flurry of research activity and was of pivotal importance in the development of nuclear physics.
Meitner was born in Vienna on 7 November 1878. She became interested in science at an early age, but before studying physics, her parents insisted that she should first qualify as a French teacher in order to be certain of supporting herself. She passed the examination in French and then entered the University of Vienna in 1901. She obtained her PhD from that university in 1905, becoming only the second woman to do so, her thesis work on thermal conduction having been supervised by Ludwig Boltzmann.
In 1907, Meitner entered the University of Berlin to continue her studies under Max Planck. She met Otto Hahn soon after arriving in Berlin. He was seeking a physicist to work with him on radioactivity at the Kaiser-Wilhelm Institute for Chemistry. Meitner joined Hahn, but their supervisor Emil Fischer would not allow Meitner to work in his laboratory because she was a woman, and they had to set up a small laboratory in a carpenter's workroom. Despite this inauspicious start, Meitner became a member of the Kaiser-Wilhelm Institute in 1912, and in 1917 was made joint director of the institute with Hahn and was also appointed head of the physics department.
In 1912 Meitner had also become an assistant to Planck at the Berlin Institute of Theoretical Physics. She was appointed docent at the University of Berlin in 1922, and then made extraordinary professor of physics in 1926. Meitner, who was Jewish, remained in Berlin when the Nazis came to power in 1933 because she was protected by her Austrian citizenship. However the German annexation of Austria in 1938 deprived her of this citizenship and placed her life in danger. With the aid of Dutch scientists, she escaped to Holland and soon moved to Denmark as the guest of Niels Bohr. She was then offered a post at the Nobel Physical Institute in Stockholm, where a cyclotron was being built, and Meitner accepted. It was shortly after her arrival in Sweden that Meitner and Frisch, who was working at Bohr's Institute in Copenhagen, made the discovery of nuclear fission...