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Gunnar Källén
Anders Olof Gunnar Källén (13 February 1926 – 13 October 1968) was a Swedish theoretical physicist and professor at Lund University, known for his work on correlation functions in quantum field theory. He died at the age of 42 as a result of a plane crash. Biography Anders Olof Gunnar Källén was born in 1926 in Kristianstad, Sweden. His father, Yngve Källén, was a teacher of physics and mathematics, and together they published a paper on the theory of relativity. Gunnar's brother was the embryologist . Källén earned his doctorate at Lund in 1950 working with Torsten Gustafson, who was in close correspondence with Wolfgang Pauli. He worked at CERN's theoretical division from 1952 to 1957, which, at that time, was situated at the Institute for Theoretical Physics of the University of Copenhagen, later to be named Niels Bohr Institute. Afterwards he worked at Nordita from 1957 to 1958, and then began a professorship at Lund University. Källén's research focused on qua ...
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Kristianstad
Kristianstad ( , ) is a Urban areas in Sweden, city and the seat of Kristianstad Municipality, Scania County, Sweden with 41,198 inhabitants in 2023. Since the 1990s, the city has gone from being a garrison town to a developed commercial city, focusing on nature preservation and a food profile. History The city was founded in 1614 by King Christian IV of Denmark (the city's name literally means 'Town of Christian'or "Christian's town") as a planned city after the burning of the nearby town of Vä and moving the city rights of the neighbouring town of Vå and Åhus to the new town. The purpose of the town was to safeguard the eastern half of the Danish province of Scania against any future raids from Sweden in the north, but also as a symbol of the power of Christian himself. One of these raids had sacked the nearby town of Vä in 1612. Vä then lost its charter and the people were relocated to the new, better fortified city. The king also founded the town of Kristianopel in ea ...
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Niels Bohr Institute
The Niels Bohr Institute () is a research institute of the University of Copenhagen. The research of the institute spans astronomy, geophysics, nanotechnology, particle physics, quantum mechanics, and biophysics. Overview The institute was founded in 1921, as the Institute for Theoretical Physics of the University of Copenhagen, by the Danish theoretical physicist Niels Bohr, who had been on the staff of the University of Copenhagen since 1914, and who had been lobbying for its creation since his appointment as professor in 1916. On the 80th anniversary of Niels Bohr's birth – October 7, 1965 – the Institute officially became the Niels Bohr Institute. Much of its original funding came from the charitable foundation of the Carlsberg Group, Carlsberg brewery, and later from the Rockefeller Foundation. During the 1920s, and 1930s, the institute was the center of the developing disciplines of atomic physics and quantum physics. Physicists from across Europe (and sometimes furthe ...
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Theoretical Physicists
The following is a partial list of notable theoretical physicists. Arranged by century of birth, then century of death, then year of birth, then year of death, then alphabetically by surname. For explanation of symbols, see Notes at end of this article. Ancient times * Kaṇāda (6th century BCE or 2nd century BCE) * Thales (c. 624 – c. 546 BCE) * Pythagoras^* (c. 570 – c. 495 BCE) * Democritus° (c. 460 – c. 370 BCE) * Aristotle‡ (384–322 BCE) * Archimedesº* (c. 287 – c. 212 BCE) * Ptolemy (c. 100 – c. 170 AD) * Hypatia^ªº (c. 350–370; died 415 AD) Middle Ages * Al Farabi (c.872–c.950) * Ibn al-Haytham (c.965–c.1040) * Al Beruni (c.973–c.1048) * Omar Khayyám (c.1048–c.1131) * Bhaskara II (c.1114–c.1185) * Mu'ayyad al-Din al-Urdi (c.1200–c.1266) * Nasir al-Din Tusi (1201–1274) * Jean Buridan (1301–c.1359/62) * Nicole Oresme (c.1320/1325–1382) * Jamshid al-Kashi (1380–1429) * Sigismondo Polcastro (1384–1473) * Ulugh Beg (1394–1449) ...
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Swedish Physicists
Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by the Swedish language * Swedish people or Swedes, persons with a Swedish ancestral or ethnic identity ** A national or citizen of Sweden, see demographics of Sweden ** Culture of Sweden * Swedish cuisine See also * * Swedish Church (other) * Swedish Institute (other) * Swedish invasion (other) * Swedish Open (other) Swedish Open is a tennis tournament. Swedish Open may also refer to: * Swedish Open (badminton) * Swedish Open (table tennis) * Swedish Open (squash) * Swedish Open (darts) {{disambiguation ... {{disambig Language and nationality disambiguation pages ...
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1968 Deaths
Events January–February * January 1968, January – The I'm Backing Britain, I'm Backing Britain campaign starts spontaneously. * January 5 – Prague Spring: Alexander Dubček is chosen as leader of the Communist Party of Czechoslovakia. * January 10 – John Gorton is sworn in as 19th Prime Minister of Australia, taking over from John McEwen after being 1968 Liberal Party of Australia leadership election, elected leader of the Liberal Party of Australia, Liberal Party the previous day, following the disappearance of Harold Holt. Gorton becomes the only Australian Senate, Senator to become Prime Minister, though he immediately transfers to the Australian House of Representatives, House of Representatives through the 1968 Higgins by-election in Holt's vacant seat. * January 15 – The 1968 Belice earthquake in Sicily kills 380 and injures around 1,000. * January 21 ** Vietnam War: Battle of Khe Sanh – One of the most publicized and controversial battles of the ...
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1926 Births
In Turkey, the year technically contained only 352 days. As Friday, December 18, 1926 ''(Julian Calendar)'' was followed by Saturday, January 1, 1927 '' (Gregorian Calendar)''. 13 days were dropped to make the switch. Turkey thus became the last country to officially adopt the Gregorian Calendar, which ended the 344-year calendrical switch around the world that took place in October, 1582 by virtue of the Papal Bull made by Pope Gregory XIII. Events January * January 3 – Theodoros Pangalos declares himself dictator in Greece. * January 8 **Ibn Saud is crowned ruler of the Kingdom of Hejaz. ** Crown Prince Nguyễn Phúc Vĩnh Thuy ascends the throne as Bảo Đại, the last monarch of the Nguyễn dynasty of the Kingdom of Vietnam. * January 16 – A British Broadcasting Company radio play by Ronald Knox about workers' revolution in London causes a panic among those who have not heard the preliminary announcement that it is a satire on broadcasting. * January 21 ...
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Arthur Wightman
Arthur Strong Wightman (March 30, 1922 – January 13, 2013) was an American mathematical physicist. He was one of the founders of the axiomatic approach to quantum field theory, and originated the set of Wightman axioms. With his rigorous treatment of quantum field theories, he promoted research on various aspects of modern mathematical physics. Biography Arthur Wightman was born on March 30, 1922, in Rochester, in New York. He studied at the Yale University and in 1942 he earned a bachelor's degree in physics. In 1949 he received his doctorate at the Princeton University under the supervision of John Wheeler. He intended to graduate with Eugene Wigner, but he was spending most of his time at the Oak Ridge National Laboratory. In the early 1950s, he started as a young instructor in the Princeton Physics department and later became the Thomas D. Jones Professor of Mathematical Physics, in 1971. He retired in 1992 as professor emeritus. In the years 1951–1952 and 1956–1957 ...
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Steven Weinberg
Steven Weinberg (; May 3, 1933 – July 23, 2021) was an American theoretical physicist and Nobel laureate in physics for his contributions with Abdus Salam and Sheldon Glashow to the unification of the weak force and electromagnetic interaction between elementary particles. He held the Josey Regental Chair in Science at the University of Texas at Austin, where he was a member of the Physics and Astronomy Departments. His research on elementary particles and physical cosmology was honored with numerous prizes and awards, including the 1979 Nobel Prize in physics and the 1991 National Medal of Science. In 2004, he received the Benjamin Franklin Medal of the American Philosophical Society, with a citation that said he was "considered by many to be the preeminent theoretical physicist alive in the world today." He was elected to the U.S. National Academy of Sciences, Britain's Royal Society, the American Philosophical Society, and the American Academy of Arts and Sciences. ...
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Cecilia Jarlskog
Cecilia Jarlskog (born in 1941) is a Swedish theoretical physicist, working mainly on elementary particle physics. Jarlskog obtained her doctorate in 1970 in theoretical particle physics at the Technical University of Lund. She is known for her work on CP violation in the electroweak sector of the Standard Model, introducing what is known as the Jarlskog invariant, and for her work on grand unified theories (see Georgi–Jarlskog mass relation). Research interests Cecilia Jarlskog is mainly known for her study and expertise in theoretical particle physics. Her studies include research on the ways that sub-atomic and electronic constituents of matter cohere or lose their symmetry, matter and antimatter asymmetry, mathematical physics, neutrino physics, and grand unification. The Jarlskog invariant or rephasing-invariant CP violation parameter, is an invariant quantity in particle physics, which is in the order of ±2.8 x 10−5. This parameter is related to the unitarity condi ...
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Emergency Landing
An emergency landing is a premature landing made by an aircraft in response to an emergency involving an imminent or ongoing threat to the safety and operation of the aircraft, or involving a sudden need for a passenger or crew on board to terminate the flight (such as a medical emergency). It typically involves a forced diversion to the nearest or most suitable airport or airbase, or an forced landing, off airport landing or ditching if the flight cannot reach an airfield. Flights under air traffic control will be given priority over all other aircraft operations upon the declaration of the emergency. Types There are several different types of emergency landings for powered aircraft: planned landing or unplanned landing. * ''Forced landing'' – the aircraft is forced to make a landing due to technical problems. Landing as soon as possible is a priority, no matter where, since a major system failure has occurred or is imminent. It is caused by the failure of or damage to vital ...
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Malmö
Malmö is the List of urban areas in Sweden by population, third-largest city in Sweden, after Stockholm and Gothenburg, and the List of urban areas in the Nordic countries, sixth-largest city in Nordic countries, the Nordic region. Located on the Øresund, Öresund Øresund, strait on the southwestern coast of Sweden, it is the largest city in Scania, with a municipal population of 365,644 in 2024, and is the Governors of Skåne County, gubernatorial seat of Skåne County. Malmö received its city privileges in 1353, and today Metropolitan Malmö, Malmö's metropolitan region is home to over 700,000 people. Malmö is the site of Sweden's only Fixed link, fixed direct link to continental Europe, the Öresund Bridge, completed in 2000. The bridge connects Sweden to Denmark, and carries both road and rail traffic. The Öresund Region, which includes Malmö and Copenhagen, is home to four million people. The city was one of the earliest and most-Industrial Revolution, industri ...
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Piper PA-28 Cherokee
The Piper PA-28 Cherokee is a family of two-seat or four-seat light aircraft built by Piper Aircraft and designed for flight training, air taxi and personal use.Plane and Pilot: ''1978 Aircraft Directory'', pages 62–64. Werner & Werner Corp, Santa Monica CA, 1977. The PA-28 family of aircraft comprises all-metal, unpressurized, single piston-engined airplanes with low mounted wings and tricycle landing gear. They have a single door on the right side, which is entered by stepping on the wing. The PA-28 is the fourth most produced aircraft in history. The first PA-28 received its type certificate from the Federal Aviation Administration in 1960 and the series remains in production to this day. The Archer was discontinued in 2009, but with investment from new company ownership, the model was put back into production in 2010. As of 2024, five models were in production; the Archer TX and LX, the diesel-powered Archer DX and DLX, and the Pilot 100i. The PA-28 series competed ...
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