08/03/2016 Physicists mentioned in ‘Copenhagen’ Max Born (December 11, 1882 – January 5, 1970) He was a German physicist and mathematician who was instrumental in the development of quantum mechanics. He also made contributions to solid-state physics and optics and supervised the work of a number of notable physicists in the 1920s and 30s. Born won the 1954 Nobel Prize in Physics. http://en.wikipedia.org/wiki/Max_Born Pascual Jordan (October 18, 1902; July 31, 1980) He was a theoretical and mathematical physicist who made significant contributions to quantum mechanics and quantum field theory. Aside from heavily influencing the mathematical form of matrix mechanics, he developed canonical anticommutation relations for fermions and Jordan algebra for observables. Jordan joined the Nazi party and became a brownshirt, a political affiliation which largely isolated him within the physics community. http://en.wikipedia.org/wiki/Pascual_Jordan http://www.desy.de/fortbildung/vortraege/ehlers.htm Julius Robert Oppenheimer (April 22, 1904 – February 18, 1967) He was an American theoretical physicist and professor of physics at the University of California, Berkeley. He is known for his role as the scientific director of the Manhattan Project: the World War II effort to develop the first nuclear weapons at the secret Los Alamos National Laboratory in New Mexico. For this reason he is remembered as "the father of the atomic bomb". http://en.wikipedia.org/wiki/Robert_Oppenheimer Carl Friedrich Freiherr von Weizsäcker (June 28, 1912 – 28 April 2007) was a German physicist and philosopher. He was the longest-living member of the research team which performed nuclear research in Germany during the Second World War, under Werner Heisenberg's leadership. There is ongoing debate as to whether he, and the other members of the team, actually willingly pursued the development of a nuclear bomb for Germany during this time. http://en.wikipedia.org/wiki/Carl_Friedrich_von_Weizs%C3%A4cker 1/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Victor Frederick Weisskopf (September 19, 1908 – April 22, 2002) He was an Austrian American theoretical physicist. During World War II he worked at Los Alamos on the Manhattan Project to develop the atomic bomb, and later campaigned against the proliferation of nuclear weapons. Weisskopf was a co-founder and board member of the Union of Concerned Scientists. He served as director-general of CERN from 1961-1966. http://en.wikipedia.org/wiki/Victor_Frederick_Weisskopf Niels Henrik David Bohr (October 7, 1885 – November 18, 1962) He was a Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics, for which he received the Nobel Prize in Physics in 1922. Bohr mentored and collaborated with many of the top physicists of the century at his institute in Copenhagen. He was also part of the team of physicists working on the Manhattan Project. Bohr married Margrethe Nørlund in 1912, and one of their sons, Aage Niels Bohr, grew up to be an important physicist who, like his father, received the Nobel Prize, in 1975. Bohr has been described as one of the most influential physicists of the 20th century. http://en.wikipedia.org/wiki/Niels_Bohr Werner Karl Heisenberg (December 5, 1901 – February 1, 1976) He was a celebrated German physicist and Nobel laureate, one of the founders of quantum mechanics and acknowledged to be one of the most important physicists of the twentieth century. Heisenberg was the head of the German nuclear energy project under the Nazi regime, though the nature of this project, and his work in this capacity, has been heavily debated. He is bestknown for discovering one of the central principles of modern physics, the Heisenberg uncertainty principle, and for the development of quantum mechanics, for which he was awarded the Nobel Prize in Physics in 1932. In addition to the development of quantum mechanics, Heisenberg made many other notable contributions to physics. He discovered isospin, co-discovered and heavily developed the Kolmogorov theory of turbulent scaling, and introduced S-matrix theory. http://en.wikipedia.org/wiki/Werner_Heisenberg Wolfgang Ernst Pauli (April 25, 1900 – December 15, 1958) He was an Austrian theoretical physicist noted for his work on spin theory, and for the discovery of the exclusion principle underpinning the structure of matter and the whole of chemistry. 2/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Pauli made many important contributions in his career as a physicist, primarily in the field of quantum mechanics. He seldom published papers, preferring lengthy correspondences with colleagues (such as Bohr and Heisenberg, with whom he had close friendships.) Many of his ideas and results were never published and appeared only in his letters, which were often copied and circulated by their recipients. Pauli was apparently unconcerned that much of his work thus went unaccredited. http://en.wikipedia.org/wiki/Wolfgang_Pauli Stefan Rozental (Born 1903, died 1994) He was a nuclear physicist, specializing in quantum mechanics. Trapped outside Poland when World War I started, he and his parents ended up in Denmark and spent four years from 1915 there before they returned to their native Poland in 1919 after the war. He received his PhD from the University of Kraków in 1928. He later held an assistant position with Werner Heisenberg in Leipzig between 1929 and 1934 and lectured in Kraków between 1934 and 1938. Due to the raising Anti-Semitism in Poland he immigrated to Denmark and arrived in Copenhagen in March 1938 where Niels Bohr admitted him to his institute. From 1940, after Hendrik Anthony Kramers (from 1916) and Léon Rosenfeld (from 1934), he was Niels Bohr's personal assistant for almost fifteen years, whom he assisted even into the early sixties after both returned to Copenhagen in 1945. http://en.wikipedia.org/wiki/Stefan_Rozental Albert Einstein (March 14, 1879 – April 18, 1955)He was a German-born theoretical physicist. He is best known for his theory of relativity and specifically mass–energy equivalence, E = mc2. Einstein received the 1921 Nobel Prize in Physics "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect." Einstein's many contributions to physics include his special theory of relativity, which reconciled mechanics with electromagnetism, and his general theory of relativity, which extended the principle of relativity to non-uniform motion, creating a new theory of gravitation. His other contributions include relativistic cosmology, capillary action, critical opalescence, classical problems of statistical mechanics and their application to quantum theory, an explanation of the Brownian movement of molecules, atomic transition probabilities, the quantum theory of a monatomic gas, thermal properties of light with low radiation density (which laid the foundation for the photon theory), a theory of radiation including stimulated emission, the conception of a unified field theory, and the geometrization of physics. Einstein published over 300 scientific works and over 150 non-scientific works. Einstein is revered by the physics community and in 1999 Time magazine named him the "Person of the Century". In wider culture the name "Einstein" has become synonymous with genius. 3/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 http://en.wikipedia.org/wiki/Albert_Einstein CHRISTIAN MØLLER (1904 - 1981) Born in Denmark in 1904, Christian Møller spent almost his entire working life as Professor of Mathematical Physics in Copenhagen, where he had been educated before continuing his studies in Rome and at Cambridge. He headed the theory group at the European Centre for Nuclear Research, CERN, from 1954 to 1957. Although he also contributed to atomic and nuclear theory, he is best known for his work in relativity, which resulted in 1952 in the publication of the much used book The Theory of Relativity. www.ashp.cuny.edu/nml/copenhagen Otto Robert Frisch (1 October 1904–22 September 1979) He was Austrian-British physicist. With his collaborator Rudolf Peierls he designed the first theoretical mechanism for the detonation of an atomic bomb in 1940. http://en.wikipedia.org/wiki/Otto_Robert_Frisch Lise Meitner (November 7 or 17 1878 – October 27, 1968) was an Austrian-born, later Swedish physicist who studied radioactivity and nuclear physics. Lise Meitner was part of the team that discovered nuclear fission, an achievement for which her colleague Otto Hahn was awarded the Nobel Prize. Meitner is often mentioned as one of the most glaring examples of scientific achievement that was ostensibly overlooked by the Nobel committee. A 1997 Physics Today study concluded that Meitner's omission was "a rare instance in which personal negative opinions apparently led to the exclusion of a deserving scientist" from the Nobel. http://en.wikipedia.org/wiki/Lise_Meitner Arnold Johannes Wilhelm Sommerfeld (December 5, 1868 – April 26, 1951) was a German theoretical physicist who pioneered developments in atomic and quantum physics, and also educated and groomed a large number of students for the new era of theoretical physics. He introduced the fine-structure constant into quantum mechanics. http://en.wikipedia.org/wiki/Arnold_Sommerfeld 4/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Max Theodor Felix von Laue (October 9, 1879 – April 24, 1960) was a German physicist who won the Nobel Prize in Physics in 1914 for his discovery of the diffraction of X-rays by crystals. He was strongly opposed to National Socialism. In addition to his scientific endeavours with contributions in optics, crystallography, quantum theory, superconductivity, and the theory of relativity, he had a number of administrative positions which advanced and guided German scientific research and development during four decades. He was instrumental in re-establishing and organizing German science after World War II. http://en.wikipedia.org/wiki/Max_von_Laue Sir Charles Hambro (1897-1963) Charles Hambro was born into a British banking family of Danish descent, and he served with distinction in WWI. Between the wars, he worked in New York for Guaranty Trust and in London for C. J. Hambro and Sons. He also sat on the board of directors for the Bank of England. When WWII began, he joined the Ministry of Economic Warfare and later became a colonel on the general staff. After the fall of France in 1941, he entered Special Operations Executive and became head of the Scandinavian section. In this capacity, he aided the resistance in Denmark. He went to Washington in 1943 as a member of the Combined Raw Materials Board. Among his duties was the exchange of information with the US on the atom bomb. After the war, he returned to banking and worked in the Marshall Plan. In the 1960's, he supported retaining the pound as the basic unit of British currency. http://web.mit.edu/~redingtn/OldFiles/www/netadv/FChambro.html http://www.vigrid.net/norgeikrig01.htm John Archibald Wheeler (July 9, 1911 – April 13, 2008) He was an eminent American theoretical physicist. One of the later collaborators of Albert Einstein, he tried to achieve Einstein's vision of a unified field theory. He is also known for having coined the terms black hole and wormhole and the phrase "it from bit". John Archibald Wheeler was born in Jacksonville, Florida. He graduated from the Baltimore City College high school in 1926 and received his doctorate from Johns Hopkins University in 1933. His dissertation, under the supervision of Karl Herzfeld, was on the theory of the dispersion and absorption of helium. http://en.wikipedia.org/wiki/John_Archibald_Wheeler http://articles.latimes.com/2008/apr/15/local/me-wheeler15 5/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Erwin Rudolf Josef Alexander Schrödinger (August 12, 1887 – January 4, 1961) He was an Austrian - Irish physicist who achieved fame for his contributions to quantum mechanics, especially the Schrödinger equation, for which he received the Nobel Prize in 1933. In 1935, after extensive correspondence with personal friend Albert Einstein, he proposed the Schrödinger's cat thought experiment. http://en.wikipedia.org/wiki/Erwin_Schr%C3%B6dinger George Gamow (March 4, 1904 – August 19, 1968) He was born Georgiy Antonovich Gamov, was a Russian Empire-born theoretical physicist and cosmologist. He discovered alpha decay via quantum tunneling and worked on radioactive decay of the atomic nucleus, star formation, stellar nucleosynthesis, big bang nucleosynthesis, nucleocosmogenesis and genetics. http://en.wikipedia.org/wiki/George_Gamow Sir James Chadwick (20 October 1891 – 24 July 1974)He was an English physicist and Nobel laureate in physics awarded for his discovery of the neutron. James Chadwick was born in Bollington, Cheshire, the son of John Joseph Chadwick and Anne Mary Knowles. He went to Bollington Cross C of E Primary School, attended Manchester High School, and studied at the Universities of Manchester and Cambridge. In 1913 Chadwick went and worked with Hans Geiger at the Technical University of Berlin. He also worked with Ernest Rutherford. He was in Germany at the start of World War I and would be interned in Ruhleben P.O.W. Camp just outside Berlin. During his internment he had the freedom to set up a laboratory in the stables. With the help of Charles Ellis he worked on the ionization of phosphorus and also on the photo-chemical reaction of carbon monoxide and chlorine. He spent most of the war years in Ruhleben until Geiger's laboratory interceded for his release. http://en.wikipedia.org/wiki/James_Chadwick Jean Baptiste Perrin (September 30, 1870 – April 17, 1942) was a French physicist and Nobel laureate. He was born in Lille, France where he attended the École Normale Supérieure. He became an assistant at the school during the period of 1894-97 when he began the study of cathode rays and X-rays. He was awarded the degree of docteur ès sciences (PhD) in 1897. In the same year he was appointed as a lecturer in physical chemistry at the Sorbonne, Paris. He became a professor at the University in 1910, holding this post until the German occupation of France during World War II. http://en.wikipedia.org/wiki/Jean_Baptiste_Perrin 6/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 http://de.wikipedia.org/wiki/Bild:Jean_Baptiste_Perrin.jpg Felix Christian Klein (April 25, 1849 – June 22, 1925) was a German mathematician, known for his work in group theory, function theory, non-Euclidean geometry, and on the connections between geometry and group theory. His 1872 Erlangen Program, classifying geometries by their underlying symmetry groups, was a hugely influential synthesis of much of the mathematics of the day. http://en.wikipedia.org/wiki/Felix_Klein http://de.wikipedia.org/wiki/Bild:Felix_Klein.jpeg Enrico Fermi (September 29, 1901 – November 28, 1954) was an Italian physicist most noted for his work on the development of the first nuclear reactor, and for his contributions to the development of quantum theory, nuclear and particle physics, and statistical mechanics. Fermi was awarded the Nobel Prize in Physics in 1938 for his work on induced radioactivity and is today regarded as one of the top scientists of the 20th century. He is acknowledged as a unique physicist who was highly accomplished in both theory and experiment. Fermium, a synthetic element created in 1952 is named after him. http://en.wikipedia.org/wiki/Enrico_Fermi http://en.wikipedia.org/wiki/Image:Enrico_Fermi_1943-49.jpg Otto Hahn (March 8, 1879, Frankfurt am Main – July 28, 1968, Göttingen) was a German chemist who received the 1944 Nobel Prize in Chemistry for discovering nuclear fission. He is considered a pioneer of radioactivity and radiochemistry. Glenn T. Seaborg deemed Hahn "the father of nuclear chemistry". Hahn was also called the "founder of the atomic age" by his contemporaries and, officially, by the senate and the members of the Max Planck Society. http://en.wikipedia.org/wiki/Otto_Hahn http://en.wikipedia.org/wiki/Image:Otto_Hahn_portrait.jpg Friedrich Wilhelm "Fritz" Strassman (February 22, 1902 - April 22, 1980) Strassmann’s expertise in analytical chemistry was employed by Otto Hahn and Lise Meitner in their investigations of the products of uranium bombarded by neutrons. In December 1938, Hahn and Strassmann sent a manuscript to Naturwissenschaften reporting they had detected the element barium after bombarding uranium with neutrons; simultaneously, they communicated these results to Meitner, who had escaped out of Germany earlier that year and was then in Sweden. Meitner, and her nephew Otto Robert Frisch, correctly interpreted these results as being nuclear fission. Frisch confirmed this experimentally on 13 January 7/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 1939.In 1944, Hahn received the Nobel Prize for Chemistry for the discovery of nuclear fission. Some historians have documented the history of the discovery of nuclear fission and believe Meitner should have been awarded the Nobel Prize with Hahn. In 1946 he became professor of inorganic chemistry at the University of Mainz and 1948 director of the newly established Max Planck Institute for Chemistry. On April 22, 1980, Strassman passed away in Mainz. http://en.wikipedia.org/wiki/Fritz_Strassmann http://www.atomicarchive.com/Images/bio/B62.jpg Karl Eugen Julius Wirtz (1910 – 1994)He was a German nuclear physicist. He was arrested by the allied British and American Armed Forces and incarcerated at Farm Hall for six months in 1945 under Operation Epsilon. In 1937, Wirtz became a staff scientist. In 1940, he worked on the horizontal layer reactor design with Fritz Bopp and Erich Fischer. In late spring 1945, Wirtz was arrested by the allied British and American Armed Forces and incarcerated at Farm Hall for six months under Operation Epsilon. no picture http://en.wikipedia.org/wiki/Karl_Wirtz Paul Karl Maria Harteck (20 July 1902 in Vienna, Austria – 22 January 1985 in Santa Barbara, California) was a German physical chemist. He was arrested by the allied British and American Armed Forces and incarcerated at Farm Hall for six months in 1945 under Operation Epsilon. From 1928 to 1933, Harteck was a staff scientist he worked with Karl Friedrich Bonhoeffer on experiments on parahydrogen and orthohydrogen. In 1933, Harteck went to do research with Ernest Rutherford at the University of Cambridge. From 1940, with Hans Suess, his focus was on the use of heavy water as a neutron moderator. In 1941, his department constructed a conversion unit for Norsk Hydro for the catalytic production of heavy water. In 1942, especially with the help of Werner Heisenberg. In 1951, Harteck became a resident professor at the Rensselaer Polytechnic Institute in Troy, New York, where he taught until 1968. http://en.wikipedia.org/wiki/Paul_Harteck http://www.cfo.doe.gov/me70/manhattan/images/HarteckLarge.jpg 8/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Gerlach Walther Gerlach a German Physicist was born in Biebrich, Hessen-Nassau the 1st august 1889 and died in Munich the 10th august 1979. In 1921 he was professor at Frankfurt University and discovered with Otto Stern the space quantization in a magnetic field, known as the Stern-Gerlach effect. In quantum mechanics, the Stern– Gerlach experiment on the deflection of particles, often used to illustrate basic principles of quantum mechanics. It can be used to demonstrate that electrons and atoms have intrinsically quantum properties, and how measurement in quantum mechanics affects the system being measured. http://en.wikipedia.org/wiki/Walter_Gerlach Georg Ferdinand Duckwitz Georg Ferdinand Duckwitz (September 29, 1904, in Bremen - February 16, 1973) was a German attache who warned the Danish Jews about their intended deportation in 1943. http://de.wikipedia.org/wiki/Georg_Ferdinand_Duckwitz http://www.wlb-stuttgart.de/seekrieg/miszellen/43-10-02.htm Rudolf Peierls Sir Rudolf Ernst Peierls, (June 5, 1907, Berlin – September 19, 1995, Oxford), was a German-born British physicist. Rudolph Peierls had a major role in Britain's nuclear program, but he also had a role in many modem sciences. His impact on physics can probably be best described by his obituary in Physics Today: "Rudolph Peierls...a major player in the drama of the irruption of nuclear physics into world affairs...". http://de.wikipedia.org/wiki/Peierls http://th.physik.uni-frankfurt.de/~jr/physlist.html Francis Perrin Not to be confused with the actor Francis Perrin. Francis Perrin (Paris, 1901 - id., 1992) was a French physicist, the son of Jean Perrin.With Frédéric Joliot and his group, he established in 1939 the possibility of nuclear chain reactions and nuclear energy production. He was the French highcommissionner for atomic energy from 1951 to 1970. http://en.wikipedia.org/wiki/Francis_Perrin 9/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Siegfried Flügge Siegfried Flügge (16 March 1912 in Dresden – 15 December 1997 in Hinterzarten) was a German theoretical physicist and made contributions to nuclear physics. He worked at the Kaiser-Wilhelm Institut für Chemie and worked in the German Uranverein (Uranium Club). He was editor of the 54-volume, prestigious Handbuch der Physik. http://en.wikipedia.org/wiki/Siegfried_Fl%C3%BCgge Kurt Diebner Kurt Diebner (13 May 1905 – 13 July 1964) was a German nuclear physicist from Obernessa. During World War II, he was a member of the German nuclear energy project. He was incarcerated in England after the war and repatriated back to Germany in early 1946. Shortly after his return, Diebner became director and joint owner of DURAG-Apparatebau GmbH and he was a member of the supervisory board of the Gesellschaft zur Kernenergieverwertung in Schiffbau und Schiffahrt m.b.H http://en.wikipedia.org/wiki/Diebner www.cfo.doe.gov/me70/manhattan/rivals.htm Samuel Abraham Goudsmit Samuel Abraham Goudsmit (born July 11, 1902 Den Haag, The Netherlands, died December 4, 1978 in Reno, Nevada) was a Dutch-American physicist famous for jointly proposing the concept of electron spin with George Eugene Uhlenbeck. He studied physics at the University of Leiden under Paul Ehrenfest, where he obtained his PhD in 1927. After receiving his PhD, Goudsmit served as a Professor at the University of Michigan between 1927 and 1946. In 1930 he co-authored a text with Linus Pauling titled The Structure of Line Spectra. http://en.wikipedia.org/wiki/Samuel_Abraham_Goudsmit http://www.tamu-commerce.edu/physics/links/goudsmit.jpg George Eugene Uhlenbeck George Eugene Uhlenbeck (December 6, 1900, Batavia, Dutch East Indies – October 31, 1988, Boulder, Colorado) was a Dutch-American theoretical physicist. He introduced the concept of electron spin, which posits that electrons rotate on an axis, with Samuel Abraham Goudsmit, for which they were awarded the Max Planck medal in 1964. Uhlenbeck was also awarded the Lorentz Medal in 1970 and Wolf Prize in Physics in 1979. He was a student of Austrian physicist and mathematician Paul Ehrenfest. http://en.wikipedia.org/wiki/George_Eugene_Uhlenbeck http://www.davebruns.com/uhlenbeck1L.JPG 10/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Albert Speer Berthold Konrad Hermann Albert Speer, commonly known as Albert Speer (listen (help·info); 19 March 1905 – 1 September 1981), was an architect, author and highranking Nazi German government official, sometimes called "the first architect of the Third Reich". Speer was Hitler's chief architect before becoming his Minister for Armaments during the war. He reformed Germany's war production to the extent that it continued to increase for over a year despite increasingly intensive Allied bombing. After the war, he was tried at Nuremberg and sentenced to 20 years' imprisonment for his role in the Third Reich. As "the Nazi who said sorry",he was the only senior Nazi figure to admit guilt and express remorse. Following his release in 1966, he became an author, writing two bestselling autobiographical works, and a third about the Third Reich. His two autobiographical works, Inside the Third Reich and Spandau: the Secret Diaries detailed his often close personal relationship with German dictator Adolf Hitler, and have provided readers and historians with an unequalled personal view inside the workings of the Third Reich. Speer died of natural causes in 1981, in London, England. http://en.wikipedia.org/wiki/Albert_Speer http://de.wikipedia.org/w/index.php?title=Bild:Albert-Speer-72929.jpg&filetimestamp=20050830115959 Paul Ehrenfest Paul Ehrenfest (January 18, 1880 – September 25, 1933) was an Austrian physicist and mathematician, who obtained Dutch citizenship on March 24, 1922. He made major contributions to the field of statistical mechanics and its relations with quantum mechanics, including the theory of phase transition and the Ehrenfest theorem. http://en.wikipedia.org/wiki/Paul_Ehrenfest http://commons.wikimedia.org/wiki/Image:Paul_Ehrenfest.jpg Lew Dawidowitsch Landau Lev Davidovich Landau) (January 22, 1908 – April 1, 1968) was a prominent Soviet physicist who made fundamental contributions to many areas of theoretical physics. His accomplishments include the co-discovery of the density matrix method in quantum mechanics, the quantum mechanical theory of diamagnetism, the theory of superfluidity, the theory of second order phase transitions, the Ginzburg-Landau theory of superconductivity, the explanation of Landau damping in plasma physics, the Landau pole in quantum electrodynamics, and the two-component theory of neutrinos. He received the 1962 Nobel Prize in Physics for his development of a mathematical theory of superfluidity that accounts for the properties of liquid helium II at a temperature below 2.17 K (−270.98 °C). 11/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 http://en.wikipedia.org/wiki/Lew_Landau http://en.wikipedia.org/wiki/Image:Lev_Davidovich_Landau.jpg Hendrik Anthony Kramers Hendrik Anthony Kramers (Rotterdam, February 2, 1894 – Oegstgeest, April 24, 1952) was a Dutch physicist, who was generally known by the first name Hans. After working for almost ten years in Bohr's group and becoming an associate professor at the university of Copenhagen. He became a full professor in theoretical physics at the university of Utrecht. In 1934 he left Utrecht and succeeded Ehrenfest in Leiden. From 1931 until his death he held also a cross appointment at the Delft University of Technology. Kramers was one of the founders of the Mathematisch Centrum in Amsterdam. He won the Lorentz Medal in 1947 and Hughes Medal in 1951. http://en.wikipedia.org/wiki/Kramers http://www.aip.org/history/newsletter/spring2000/kramersphotos.htm Paul Dirac Paul Adrien Maurice Dirac,(August 8, 1902 – October 20, 1984) was a British theoretical physicist. Dirac made fundamental contributions to the early development of both quantum mechanics and quantum electrodynamics. He held the Lucasian Chair of Mathematics at the University of Cambridge and spent the last ten years of his life at Florida State University. Among other discoveries, he formulated the socalled Dirac equation, which describes the behavior of fermions and which led to the prediction of the existence of antimatter. Dirac shared the Nobel Prize in physics for 1933 with Erwin Schrödinger, "for the discovery of new productive forms of atomic theory." http://en.wikipedia.org/wiki/Dirac http://en.wikipedia.org/wiki/Image:Dirac.gif Edward Teller Edward Teller (January 15, 1908 – September 9, 2003) was a Hungarian-born American theoretical physicist, known colloquially as "the father of the hydrogen bomb," even though he claimed that he did not care for the title. Teller is best known for his work on the American nuclear program, specifically as a member of the Manhattan Project during World War II, his role in the development of the hydrogen bomb. http://en.wikipedia.org/wiki/Edward_Teller http://en.wikipedia.org/wiki/Image:EdwardTeller1958.jpg 12/13 Tom Steichen & Tom Hermes 2eB du LGL 08/03/2016 Hendrik Brugt Gerhard Casimir (July 15, 1909 in 's-Gravenhage, Netherlands – May 4, 2000 in Heeze) He was a Dutch physicist best known for his research on the two-fluid model of superconductors (together with C. J. Gorter) in 1934 and the Casimir effect (together with D. Polder) in 1946. In 1942, during World War II, Casimir moved to the Philips Research Laboratories in Eindhoven, the Netherlands. He remained an active scientist and in 1945 wrote a well-known paper on Lars Onsager's principle of microscopic reversibility. He became a co-director of Philips Research Laboratories laboratories in 1946 and a member of the board of directors of the company in 1956. He retired from Philips in 1972. http://en.wikipedia.org/wiki/Hendrik_Casimir Leó Szilárd (Hungarian: Szilárd Leó, February 11, 1898 – May 30, 1964) was a HungarianAmerican physicist who conceived the nuclear chain reaction and worked on the Manhattan Project. He was born in Budapest under the Austro-Hungarian Empire, and died in La Jolla, California. Szilárd was directly responsible for the creation of the Manhattan Project. He drafted a confidential letter to Franklin D. Roosevelt explaining the possibility of nuclear weapons, warning of Nazi work on such weapons and encouraging the development of a program which could lead to their creation. In August 1939 he approached his old friend and collaborator Albert Einstein and convinced him to sign the letter, lending the weight of his fame to the proposal. The Einstein-Szilárd letter led directly to the establishment of research into nuclear fission by the U.S. government and ultimately to the creation of the Manhattan Project. http://en.wikipedia.org/wiki/Le%C3%B3_Szil%C3%A1rd http://www.atomicarchive.com/Bios/SzilardPhoto.shtml Friedrich Georg "Fritz" Houtermans (January 22, 1903 – March 1, 1966) was an atomic and nuclear physicist born in Zoppot (today Sopot, Poland) near Danzig (today Gdansk, Poland). Houtermans made important contributions to geochemistry and cosmochemistry. Houtermans was turned over to the Gestapo in May 1940 and imprisoned in Berlin. In 1944, Houtermans took a position as a nuclear physicist at the Physikalisch-Technische Reichsanstalt. http://en.wikipedia.org/wiki/Fritz_Houtermans http://www.marcel-benoist.ch/img/p1990oes.jpg Johan Ludwig William Valdemar Jensen, “Johan Jensen” (May 8, 1859 – March 5, 1925) was a Danish mathematician and engineer. Jensen is mostly renowned for his famous inequality, Jensen's inequality used in quantum mechanics. http://en.wikipedia.org/wiki/Johan_Jensen http://www-history.mcs.st-and.ac.uk/history/BigPictures/Jensen.jpeg 13/13 Tom Steichen & Tom Hermes 2eB du LGL