Lise Meitner: Nuclear Fission Discovery, Protactinium & Element Meitnerium
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Biographical timeline of Austrian-Swedish physicist Lise Meitner, who led the team that discovered nuclear fission of uranium. Her life spanned from her birth in Vienna in 1878 to her death in Cambridge in 1968, with key contributions including the discovery of protactinium and the theoretical explanation of nuclear fission.
Chronological Storyline (36 Milestones)
Nov 7, 1878 CE
Lise Meitner Born in Vienna
Lise Meitner is born in Vienna, Austria-Hungary, as the third of eight children of Jewish parents Hedwig and Philipp Meitner. #science #physics #history
Lise Meitner Born in Vienna By Harris & Ewing - https://www.nationalgeographic.com/science/article/nobel-prize-winners-laureates-charts-graphics-science, Public domain, https://commons.wikimedia.org/w/index.php?curid=159322196
1901 CE
Enters University of Vienna
Meitner enrolls at the University of Vienna to study mathematics and physics, after preparing for the entrance exams with private tutoring. #science #physics
1905 CE
Earns PhD in Physics
Meitner earns her doctorate in physics from the University of Vienna, with a dissertation on thermal conduction. She is one of the first women to earn a PhD there. #science #physics
1907 CE
Moves to Berlin and Joins Kaiser Wilhelm Institute
Meitner moves to Berlin, initially attending lectures by Max Planck. She begins collaborating with Otto Hahn at the Kaiser Wilhelm Institute for Chemistry. #science #history
1908 CE
Discovers beta-ray spectra
Meitner and Hahn begin investigating beta-ray spectra, discovering new isotopes. This work establishes their collaboration. #science #physics
1912 CE
Becomes Assistant to Otto Hahn
Meitner becomes an assistant to Hahn at the Kaiser Wilhelm Institute, despite initial resistance due to her gender. She works without pay for several years. #science #history
1913 CE
Discovers Protactinium with Hahn
Meitner and Hahn discover the element protactinium (atomic number 91) while studying uranium decay. This is a major contribution to the periodic table. #science #chemistry
Discovers Protactinium with Hahn By James St. John - https://www.flickr.com/photos/47445767@N05/54041583415/, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=155677744
1917 CE
Takes Over Own Physics Section
Meitner is given her own physics section at the Kaiser Wilhelm Institute, though she still faces discrimination. She continues research on radioactivity. #science #history
1922 CE
Becomes First Woman to Hold Venia Legendi in Physics at Berlin
Meitner habilitates at the University of Berlin, becoming one of the first women to become a professor in Germany. She gives lectures on nuclear physics. #science #physics
1926 CE
Becomes Extraordinary Professor at University of Berlin
Meitner is appointed as an extraordinary professor (associate professor) at the University of Berlin, a rare achievement for a woman in science at the time. #science #history
1930 CE
Begins Investigating Neutron Bombardment of Uranium
Meitner and Hahn begin experiments bombarding uranium with neutrons, following Enrico Fermi's work. This leads to the discovery of nuclear fission. #science #physics
1934 CE
Collaborates with Hahn and Strassmann
Meitner, Hahn, and Fritz Strassmann systematically study neutron-induced reactions in uranium, trying to identify transuranium elements. #science #chemistry
Jul 13, 1938 CE
Flees Nazi Germany to Sweden
After the Anschluss, Meitner, being Jewish, escapes Germany with help from Dutch physicists and moves to Sweden. She continues her research at Manne Siegbahn's institute in Stockholm. #history #science
Dec 1, 1938 CE
Hahn and Strassmann Discover Barium in Uranium Bombardment
Hahn and Strassmann chemically identify barium as a product of neutron bombardment of uranium, puzzling over the result. They inform Meitner in letters. #science #chemistry
Jan 1, 1939 CE
Explains Nuclear Fission with Otto Frisch
Meitner and her nephew Otto Frisch provide the theoretical explanation of nuclear fission: the uranium nucleus splits into smaller nuclei, releasing energy. They coin the term 'fission'. #science #physics
Explains Nuclear Fission with Otto Frisch By Created by Fastfission in Illustrator. The SVG code is valid. This vector image was created with a text editor. Please do not replace the simplified code of this file with a version created with Inkscape or any other graphical vector graphics editor - Own work, Public domain, https://commons.wikimedia.org/w/index.php?curid=486924
Feb 1, 1939 CE
Publication of Fission Paper in Nature
Meitner and Frisch publish their explanation of fission in the journal Nature. This discovery opens the door for nuclear energy and weapons. #science #physics
1940 CE
Denied Nobel Prize for Fission Discovery
Though Meitner's work was central, she was not included in the Nobel Prize awarded to Hahn in 1944. This is a notable oversight in Nobel history. #history #science
1945 CE
Invited to Manhattan Project but Declines
Meitner is invited to work on the Manhattan Project but refuses, saying 'I will have nothing to do with a bomb!' She remains in Sweden. #history #science
1946 CE
Visits the United States
Meitner visits the United States to give lectures and receives some recognition, but she does not achieve the same fame as other Manhattan Project scientists. #science #history
1947 CE
Retires from Active Research
Meitner retires from the Nobel Institute for Physics in Stockholm, though she continues to attend scientific conferences and advise younger scientists. #science #history
1949 CE
Receives Max Planck Medal
Meitner is awarded the Max Planck Medal for her contributions to theoretical physics, one of the highest honors in German physics. #science #physics
1955 CE
Moves to Cambridge, England
Meitner moves to Cambridge to be near her nephew Otto Frisch and other relatives. She continues her association with the Cavendish Laboratory. #history #science
1957 CE
Receives Otto Hahn Prize
Meitner receives the Otto Hahn Prize for Chemistry and Physics, but the prize is awarded to both her and Otto Hahn, though she had been excluded from the Nobel. #science #history
1959 CE
Awarded the Helmholtz Medal
Meitner is awarded the Helmholtz Medal of the Berlin-Brandenburg Academy of Sciences and Humanities. #science #physics
1960 CE
Receives the Austrian Science Prize
Meitner receives the Austrian Science Prize for her lifetime achievements in nuclear physics. #science #history
1963 CE
Receives Enrico Fermi Award
Meitner is awarded the Enrico Fermi Award by the United States government for her contributions to nuclear science, shared with Hahn and Strassmann. #science #physics
1965 CE
Publishes Autobiography 'A Scientist Speaks'
Meitner publishes a collection of essays and reflections titled 'A Scientist Speaks', discussing her life and the ethics of science. #books #science
1966 CE
Awarded the Wilhelm Exner Medal
Meitner receives the Wilhelm Exner Medal in Austria for excellence in science. #science #history
1967 CE
Receives an Honorary Doctorate from the University of Vienna
Meitner is awarded an honorary doctorate from the University of Vienna for her groundbreaking contributions to physics. #science #education
Oct 27, 1968 CE
Dies in Cambridge, England
Lise Meitner dies in Cambridge at the age of 89. She is buried at the parish church of St. James in Bramley, Hampshire. #history #science
1992 CE
Element 109 Named Meitnerium
The International Union of Pure and Applied Chemistry (IUPAC) names element 109 meitnerium in her honor, recognizing her contributions to nuclear physics and the discovery of fission. #science #chemistry
1997 CE
Meitnerium Formally Accepted by IUPAC
After a naming controversy, IUPAC officially adopts the name meitnerium for element 109, solidifying her legacy in the periodic table. #science #chemistry
2000 CE
Name given to a crater on the Moon
A crater on the Moon is named Meitner in her honor, reflecting her lasting impact on science. #science #astronomy )
2006 CE
Lise Meitner Prize Established
The European Physical Society establishes the Lise Meitner Prize for outstanding research in nuclear physics. #science #physics
2016 CE
Google Doodle Honors Lise Meitner
A Google Doodle commemorates Lise Meitner's 138th birthday, raising global awareness of her contributions. #science #history
2020 CE
Biography 'Lise Meitner: A Life in Physics' Published
A comprehensive biography detailing her life and scientific legacy is published by historian Ruth Lewin Sime. #books #science