Louis Alexander Slotin, was a Canadian physicist and chemist who worked on the Manhattan Project, Slotin was the second person to die from a criticality accident, following the death of Harry Daghlian, who had been exposed to what?
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Louis Slotin Louis Alexander Slotin (1 December 1910 – 30 May 1946) was a Canadian physicist and chemist who worked on the Manhattan Project. During World War II, Slotin conducted research at Los Alamos National Laboratory. He performed experiments with uranium and plutonium cores to determine their critical mass values. On 21 May 1946, Slotin was conducting a demonstration when he accidentally initiated a fission reaction, which released a burst of hard radiation. He received a lethal dose of radiation and died of acute radiation syndrome nine days later. Slotin was the second person to die from a criticality accident, following the death of Harry Daghlian, who had been exposed to radiation by the same core that killed Slotin. Slotin was publicly hailed as a hero by the United States government for reacting quickly and preventing his accident from killing any colleagues. He was later criticized for failing to follow protocol during the experiment.
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Harry Daghlian Haroutune Krikor "Harry" Daghlian Jr. (May 4, 1921 – September 15, 1945) was a physicist with the Manhattan Project which designed and produced the atomic bombs that were used in World War II. He accidentally irradiated himself on August 21, 1945, during a critical mass experiment at the remote Omega Site of the Los Alamos Laboratory in New Mexico, resulting in his death 25 days later.
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Alexander Edgar Douglas Alexander "Alex" Edgar Douglas, {'1': ", '2': ", '3': ", '4': "} (12 April 1916, in Melfort, Saskatchewan – 26 July 1981, in Ottawa) was a Canadian physicist, known for his work in molecular spectroscopy. He was president of the Canadian Association of Physicists in 1975–1976.
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Seth Neddermeyer Seth Henry Neddermeyer (September 16, 1907 – January 29, 1988) was an American physicist who co-discovered the muon, and later championed the Implosion-type nuclear weapon while working on the Manhattan Project at the Los Alamos Laboratory during World War II.
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Amos de-Shalit Amos de-Shalit (Hebrew: עמוס דה-שליט‎ ‎ ; September 29, 1926 – September 2, 1969) was an Israeli nuclear physicist and Israel Prize laureate.
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Mohammad Salman Hamdani Mohammad Salman Hamdani (Urdu: ‎ ) (December 28, 1977 – September 11, 2001) was a Pakistani American scientist, New York City Police Department cadet and Emergency Medical Technician who was killed in the aftermath of the 9/11 terrorism attacks on the World Trade Center, where he had gone to try to help. In the weeks following 9/11, reports surfaced that the missing Hamdani was being investigated for possible involvement with the perpetrators, but this suspicion proved to be false and he was subsequently hailed as a hero by the New York City mayor and police commissioner.
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Sergei Preminin Sergei Anatolievich Preminin (Russian: Сергей Анатольевич Преминин, 18 October 1965 – 3 October 1986) was a Soviet Russian sailor who, after an explosion aboard nuclear submarine "K-219", prevented an impending nuclear meltdown by manually forcing damaged control rods into place. He was, however, unable to exit the reactor compartment because the hatch had jammed due to increased pressure, and died.
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Oppenheimer security hearing The Oppenheimer security hearing was a 1954 proceeding by the United States Atomic Energy Commission (AEC) that explored the background, actions, and associations of J. Robert Oppenheimer, the American scientist who had headed the Los Alamos Laboratory during World War II, where he played a key part in the Manhattan Project that developed the atomic bomb. The hearing resulted in Oppenheimer's Q clearance being revoked. This marked the end of his formal relationship with the government of the United States, and generated considerable controversy regarding whether the treatment of Oppenheimer was fair, or whether it was an expression of anti-Communist McCarthyism.
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Chicago Pile-3 Chicago Pile-3 (CP-3) was the first heavy water reactor in the world, going critical on 15 May 1944. It was used in the experimental physics work of the Metallurgical Laboratory for the Manhattan Project. CP-3 was in operation from 1943-1954 and was built near Palos Hills, Illinois on the former (i.e., original) site of Argonne National Laboratory. The site is now known as the Site A/Plot M Disposal Site and is situated within Red Gate Woods, part of the Cook County Forest Preserve system.
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Project Alberta Project Alberta, also known as Project A, was a section of the Manhattan Project which assisted in delivering the first nuclear weapons in the atomic bombing of Hiroshima and Nagasaki during World War II.
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Louis Diamond Louis Klein Diamond (May 11, 1902 – June 14, 1999) was an American pediatrician, known as the "father of pediatric hematology".
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G. W. C. Tait G.W.C. Tait, also known as George William Campbell Tait (April 28, 1912 – March 9, 1993), was an inventor and pioneer in the field of health physics in Canada and at the Chalk River Project.
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Edward Condon Edward Uhler Condon (March 2, 1902 – March 26, 1974) was a distinguished American nuclear physicist, a pioneer in quantum mechanics, and a participant in the development of radar and nuclear weapons during World War II as part of the Manhattan Project. The Franck–Condon principle and the Slater–Condon rules are co-named after him.
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Philip Morrison Philip Morrison (November 7, 1915 – April 22, 2005) was a professor of physics at the Massachusetts Institute of Technology (MIT). He is known for his work on the Manhattan Project during World War II, and for his later work in quantum physics, nuclear physics and high energy astrophysics.
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Frank Spedding Frank Harold Spedding (October 22, 1902 – December 15, 1984) was a Canadian American chemist. He was a renowned expert on rare earth elements, and on extraction of metals from minerals. The uranium extraction process helped make it possible for the Manhattan Project to build the first atomic bombs.
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Cyril Stanley Smith Cyril Stanley Smith (4 October 1903 – 25 August 1992) was a British metallurgist and historian of science. He is most famous for his work on the Manhattan Project where he was responsible for the production of fissionable metals. A graduate of the University of Birmingham and Massachusetts Institute of Technology (MIT), Smith worked for many years as a research metallurgist at the American Brass Company. During World War II he worked in the Chemical-Metallurgical Division of the Los Alamos Laboratory, where he purified, cast and shaped uranium-235 and plutonium, a metal hitherto available only in microgram amounts, and whose properties were largely unknown. After the war he served on the Atomic Energy Commission's influential General Advisory Committee, and the President's Science Advisory Committee.
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1889–90 flu pandemic The 1889–1890 flu pandemic (October 1889 – December 1890, with recurrences March – June 1891, November 1891 – June 1892, spring 1893 and winter 1893–1894) was a deadly influenza pandemic that killed about 1 million people worldwide. The outbreak was dubbed "Asiatic flu" or "Russian flu" (not to be confused with the 1977–1978 epidemic caused by Influenza A/USSR/90/77 H1N1, which was also called Russian flu). For some time the virus strain responsible was conjectured (but not proven) to be Influenza A virus subtype H2N2. More recently, the strain was asserted to be Influenza A virus subtype H3N8.
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Alexander D. Shimkin Alexander Demitri "Alex" Shimkin (October 11, 1944 - July 12, 1972) was an American war correspondent who was killed in Vietnam. He is notable for his investigation of non-combatant casualties in Operation Speedy Express.
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Marguerite Perey Marguerite Catherine Perey (19 October 1909 – 13 May 1975) was a French physicist and a student of Marie Curie. In 1939, Perey discovered the element francium by purifying samples of lanthanum that contained actinium. In 1962, she was the first woman to be elected to the French Académie des Sciences, an honor denied to her mentor Curie. Perey died of cancer in 1975.
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Pauli effect The Pauli effect is a term referring to the supposed tendency of technical equipment to encounter critical failure in the presence of certain people. The term was coined after mysterious anecdotal stories involving Austrian theoretical physicist Wolfgang Pauli, describing numerous instances in which demonstrations involving equipment suffered technical problems only when he was present.
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Bernard Cohen (physicist) Bernard Leonard Cohen (June 14, 1924 – March 17, 2012) was born in Pittsburgh, and was Professor Emeritus of Physics at the University of Pittsburgh. Professor Cohen was a staunch opponent of the so-called Linear no-threshold model (LNT) which postulates there exists no safe threshold for radiation exposure. His view, considered in the 1980s and 1990s a self-marginalizing posture, had gained, within 20 years, support from a strong minority. He died in March 2012.
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Bertrand M. Bell Bertrand Monroe Bell (December 19, 1929 – October 4, 2016) was an American physician and Professor of Medicine at the Albert Einstein College of Medicine, best known for his lifelong efforts to regulate resident work hours. He chaired the New York State Ad Hoc Advisory Committee on Emergency Services, a committee appointed in response to the death of Libby Zion, that became known to the general public as the "Bell Commission."