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Karl Fritiof Sundman
Karl Frithiof Sundman (28 October 1873, in Kaskinen – 28 September 1949, in Helsinki) was a Finnish mathematician who used analytic methods to prove the existence of a convergent infinite series solution to the three-body problem in two papers published in 1907 and 1909. His results gained fame when they were reproduced in ''Acta Mathematica'' in 1912. He also published a paper on regularization methods in mechanics in 1912. Awards, recognition Sundman was awarded the Pontécoulant prize by the French Academy of Sciences in 1913 for his work on the 3-body problem. In 1908 Sundman was elected member of the Finnish Society of Sciences and Letters and in 1947 foreign member of the Royal Swedish Academy of Sciences. The crater Sundman on the Moon is named after him, as is the asteroid 1424 Sundmania. See also *Qiudong Wang Qiudong Wang is a professor at the Department of Mathematics, the University of Arizona. In 1982, he received a B.S. at Nanjing University and in 1994 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finnish Society Of Sciences And Letters
The Finnish Society of Sciences and Letters (, , ) is a Finnish learned society for natural sciences, social sciences and humanities. It is a bilingual (Swedish and Finnish) science academy and the oldest of the four science academies in Finland. The society was founded in 1838 and is based in Helsinki. It has a total of 120 full ordinary Finnish members, excluding members who have reached the age of 67 (a member who reaches the age of 67 retains the rights as a member but leaves his or her chair open for election of a new member), and about 120 foreign members. It is divided into four sections: I: mathematics and physics, II: biosciences, III: humanities, and IV: social sciences. The society publishes a yearbook, ''Sphinx'', and the book series ''Commentationes Humanarum Litterarum'', ''Commentationes Scientiarum Socialium'', ''Bidrag till kännedom av Finlands natur och folk'' and ''The History of Learning and Science in Finland 1828-1918''. It also awards a number of prizes a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finnish Mathematicians
Finnish may refer to: * Something or someone from, or related to Finland * Culture of Finland * Finnish people or Finns, the primary ethnic group in Finland * Finnish language, the national language of the Finnish people * Finnish cuisine See also * Finish (other) * Finland (other) * Suomi (other) Suomi means ''Finland'' in Finnish. Suomi may also refer to: *Finnish language Finnish (endonym: or ) is a Finnic languages, Finnic language of the Uralic languages, Uralic language family, spoken by the majority of the population in Finla ... * {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1949 Deaths
Events January * January 1 – A United Nations-sponsored ceasefire brings an end to the Indo-Pakistani War of 1947. The war results in a stalemate and the division of Kashmir, which still continues as of 2025 * January 2 – Luis Muñoz Marín becomes the first democratically elected Governor of Puerto Rico. * January 11 – The first "networked" television broadcasts take place, as KDKA-TV in Pittsburgh, Pennsylvania, goes on the air, connecting east coast and mid-west programming in the United States. * January 16 – Şemsettin Günaltay forms the new government of Turkey. It is the 18th government, last One-party state, single party government of the Republican People's Party. * January 17 – The first Volkswagen Beetle, VW Type 1 to arrive in the United States, a 1948 model, is brought to New York City, New York by Dutch businessman Ben Pon Sr., Ben Pon. Unable to interest dealers or importers in the Volkswagen, Pon sells the sample car to pay his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1873 Births
Events January * January 1 ** Japan adopts the Gregorian calendar. ** The California Penal Code goes into effect. * January 17 – American Indian Wars: Modoc War: First Battle of the Stronghold – Modoc Indians defeat the United States Army. February * February 11 – The Spanish Cortes deposes King Amadeus I, and proclaims the First Spanish Republic. * February 12 ** Emilio Castelar, the former foreign minister, becomes prime minister of the new Spanish Republic. ** The Coinage Act of 1873 in the United States is signed into law by President Ulysses S. Grant. Coming into effect on April 1, it ends bimetallism in the U.S., and places the country on the gold standard. * February 20 ** The University of California opens its first medical school in San Francisco. ** British naval officer John Moresby discovers the site of Port Moresby in Papua New Guinea, and claims the land for Britain. March * March 3 – Censorship: The United States Congress e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qiudong Wang
Qiudong Wang is a professor at the Department of Mathematics, the University of Arizona. In 1982, he received a B.S. at Nanjing University and in 1994 a Ph.D. at the University of Cincinnati. Wang is best known for his 1991 paper ''The global solution of the n-body problem In physics, the -body problem is the problem of predicting the individual motions of a group of astronomical object, celestial objects interacting with each other gravitationally.Leimanis and Minorsky: Our interest is with Leimanis, who first d ...'', in which he generalised Karl F. Sundman's results from 1912 to a system of more than three bodies. However, claims to have made the same generalization earlier, in 1979.. References {{DEFAULTSORT:Wang, Qiudong Chinese emigrants to the United States Nanjing University alumni University of Cincinnati alumni University of Arizona faculty American astronomers Living people Year of birth missing (living people) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1424 Sundmania
1424 Sundmania ( ''prov. designation'': ) is a large asteroid and rather slow rotator from the background population of the outer regions of the asteroid belt. It was discovered on 9 January 1937, by astronomer Yrjö Väisälä at the Turku Observatory in southwest Finland. The dark X-type asteroid has a notably long rotation period of 93.7 hours and measures approximately in diameter. It was named after Finnish astronomer and mathematician Karl F. Sundman. Orbit and classification ''Sundmania'' is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the outer main-belt at a distance of 3.0–3.4 AU once every 5 years and 8 months (2,081 days). Its orbit has an eccentricity of 0.06 and an inclination of 9 ° with respect to the ecliptic. The body's observation arc begins with its first identification as at Heidelberg Observatory in November 1918, more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon
The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar day) that is synchronized to its orbital period (Lunar month#Synodic month, lunar month) of 29.5 Earth days. This is the product of Earth's gravitation having tidal forces, tidally pulled on the Moon until one part of it stopped rotating away from the near side of the Moon, near side, making always the same lunar surface face Earth. Conversley, the gravitational pull of the Moon, on Earth, is the main driver of Earth's tides. In geophysical definition of planet, geophysical terms, the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter is , roughly one-quarter of Earth's (about as wide as the contiguous United States). Within the Solar System, it is the List of Solar System objects by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sundman (crater)
Sundman is a Lunar craters, lunar impact crater that lies just past the western limb of the Moon. Although it lies on the Far side (Moon), far side from the Earth, this part of the surface is brought into view during periods of favorable libration and illumination. Sundman lies to the southwest of the walled plain Einstein (crater), Einstein, and to the west of the Vallis Bohr cleft. It was named after Finnish mathematician and astronomer Karl F. Sundman. Description This crater lies in the midst of the skirt of ejecta that surrounds the Mare Orientale impact basin. Both the crater and its surroundings have been modified by this enormous amount of material, and the surface displays an uneven pattern that is generally radial to the basin, which is located to the north. The crater forms a shallow depression in the surface, with small craters along the southeastern and southwestern rim. Satellite craters By convention these features are identified on lunar maps by placing the lett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Swedish Academy Of Sciences
The Royal Swedish Academy of Sciences () is one of the Swedish Royal Academies, royal academies of Sweden. Founded on 2 June 1739, it is an independent, non-governmental scientific organization that takes special responsibility for promoting natural sciences and mathematics and strengthening their influence in society, whilst endeavouring to promote the exchange of ideas between various disciplines. The goals of the academy are: * To be a forum where researchers meet across subject boundaries, * To offer a unique environment for research, * To provide support to younger researchers, * To reward outstanding research efforts, * To communicate internationally among scientists, * To advance the case for science within society and to influence research policy priorities * To stimulate interest in mathematics and science in school, and * To disseminate and popularize scientific information in various forms. Every year, the academy awards the Nobel Prizes in Nobel Prize in Physics, phy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Academy Of Sciences
The French Academy of Sciences (, ) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific method, scientific research. It was at the forefront of scientific developments in Europe in the 17th and 18th centuries, and is one of the earliest Academy of Sciences, Academies of Sciences. Currently headed by Patrick Flandrin (President of the academy), it is one of the five Academies of the . __TOC__ History The Academy of Sciences traces its origin to Colbert's plan to create a general academy. He chose a small group of scholars who met on 22 December 1666 in the King's library, near the present-day Bibliothèque nationale de France, Bibliothèque Nationale, and thereafter held twice-weekly working meetings there in the two rooms assigned to the group. The first 30 years of the academy's existence were relatively informal, since no statutes had as yet been laid down for the ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaskinen
Kaskinen (; ) is a town and island in Finland, located on the west coast of the country. Kaskinen is situated in Ostrobothnia, along the Gulf of Bothnia. The population of Kaskinen approximately , while the sub-region has a population of approximately . It is the most populous municipality in Finland. Kaskinen covers an area of (excluding sea areas) of which is inland water (). The population density is . Kaskinen is a bilingual municipality with Finnish and Swedish as its official languages. The population consists of Finnish speakers, Swedish speakers, and speakers of other languages, which is well above the national average. Kaskinen is the smallest municipality in Finland with town status.Heidi Sommar: ''Kaskinen ei kasvanutkaan metropoliksi vaan puutaloidylliksi''. ''YLE'', April 17, 2015. (in Finnish) The town is located on an island with two bridges to the mainland, and its only border neighbor is the town of Närpes. The townscape of Kaskinen consists of uniform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
