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Martin David Kruskal
Martin David Kruskal (; September 28, 1925 – December 26, 2006) was an American mathematician and physicist. He made fundamental contributions in many areas of mathematics and science, ranging from plasma physics to general relativity and from nonlinear analysis to asymptotic analysis. His most celebrated contribution was in the theory of solitons. He was a student at the University of Chicago and at New York University, where he completed his Ph.D. under Richard Courant in 1952. He spent much of his career at Princeton University, as a research scientist at the Plasma Physics Laboratory starting in 1951, and then as a professor of astronomy (1961), founder and chair of the Program in Applied and Computational Mathematics (1968), and professor of mathematics (1979). He retired from Princeton University in 1989 and joined the mathematics department of Rutgers University, holding the David Hilbert Chair of Mathematics. Apart from serious mathematical work, Kruskal was k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous megacities, and over 58 million people live within of the city. New York City is a global cultural, financial, entertainment, and media center with a significant influence on commerce, health care and life sciences, research, technology, education, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leroy P
Leroy or Le Roy may refer to: People * Leroy (name), a given name and surname * Leroy (musician), American musician * Leroy (sailor), French sailor Places United States * Leroy, Alabama * Le Roy, Illinois * Le Roy, Iowa * Le Roy, Kansas * Le Roy, Michigan * Le Roy, Minnesota * Le Roy (town), New York ** Le Roy (village), New York * Leroy, Indiana * Leroy, Texas * LeRoy, Wisconsin, a town * LeRoy (community), Wisconsin, an unincorporated community * Leroy Township, Calhoun County, Michigan * Leroy Township, Ingham County, Michigan * LeRoy Township, Lake County, Ohio * Leroy Township, Pennsylvania * LeRoy, West Virginia Elsewhere * Leroy, Saskatchewan, Canada * Rural Municipality of Leroy No. 339, Saskatchewan, Canada * 93102 Leroy Year 931 ( CMXXXI) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. Events By place Europe * Spring – Hugh of Provence, king of Italy, cedes Lower Burgundy to Rudolp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Origami
) is the Japanese art of paper folding. In modern usage, the word "origami" is often used as an inclusive term for all folding practices, regardless of their culture of origin. The goal is to transform a flat square sheet of paper into a finished sculpture through folding and sculpting techniques. Modern origami practitioners generally discourage the use of cuts, glue, or markings on the paper. Origami folders often use the Japanese word ' to refer to designs which use cuts. On the other hand, in the detailed Japanese classification, origami is divided into stylized ceremonial origami (儀礼折り紙, ''girei origami'') and recreational origami (遊戯折り紙, ''yūgi origami''), and only recreational origami is generally recognized as origami. In Japan, ceremonial origami is generally called "origata" ( :ja:折形) to distinguish it from recreational origami. The term "origata" is one of the old terms for origami. The small number of basic origami folds can be combin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lillian Rose Vorhaus Kruskal Oppenheimer
Lillian Rose Vorhaus Kruskal Oppenheimer (October 24, 1898 in New York City – July 24, 1992) was an American origami pioneer. She popularized origami in the West starting in the 1950s, and is credited with popularizing the Japanese term ''origami'' in English-speaking circles, which gradually supplanted the literal translation ''paper folding'' that had been used earlier. In the 1960s she co-wrote several popular books on origami with Shari Lewis. Lillian Oppenheimer ran an informal group of dedicated folders in the New York City area, and in 1978 she co-founded, with Alice Gray and Michael Shall, the non-profit Friends of the Origami Center. After Oppenheimer's death, it was renamed OrigamiUSA. it is the largest origami organization in the United States. Oppenheimer was born to a Jewish family of Austrian, Hungarian, and Czech origin, the daughter of Bernard Vorhaus, an attorney who made a living importing furs. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Rochelle, New York
New Rochelle (; older french: La Nouvelle-Rochelle) is a city in Westchester County, New York, United States, in the southeastern portion of the state. In 2020, the city had a population of 79,726, making it the seventh-largest in the state of New York. Some residents refer to the city as '' New Ro'' or ''New Roc City''. History Etymology and early history The European settlement was started by refugee Huguenots (French Protestants) in 1688, who were fleeing religious persecution in France (such as '' Dragonnades'') after the king's revocation of the Edict of Nantes. Many of the settlers were artisans and craftsmen from the city of La Rochelle, France, thus influencing the choice of the name of "New Rochelle". 17th and 18th centuries Some 33 families established the community of ''La Nouvelle-Rochelle'' () in 1688. A monument containing the names of these settlers stands in Hudson Park, the original landing point of the Huguenots. Thirty-one years earlier, the Siwanoy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Jews
American Jews or Jewish Americans are American citizens who are Jewish, whether by religion, ethnicity, culture, or nationality. Today the Jewish community in the United States consists primarily of Ashkenazi Jews, who descend from diaspora Jewish populations of Central and Eastern Europe and comprise about 90–95% of the American Jewish population. During the colonial era, prior to the mass immigration of Ashkenazi Jews, Sephardic Jews who arrived via Portugal represented the bulk of America's then-small Jewish population, and while their descendants are a minority today, they, along with an array of other Jewish communities, represent the remainder of American Jews, including other more recent Sephardi Jews, Mizrahi Jews, Beta Israel-Ethiopian Jews, various other ethnically Jewish communities, as well as a smaller number of converts to Judaism. The American Jewish community manifests a wide range of Jewish cultural traditions, encompassing the full spectrum of Jewi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kruskal Count
Martin David Kruskal (; September 28, 1925 – December 26, 2006) was an American mathematician and physicist. He made fundamental contributions in many areas of mathematics and science, ranging from plasma physics to general relativity and from nonlinear analysis to asymptotic analysis. His most celebrated contribution was in the theory of solitons. He was a student at the University of Chicago and at New York University, where he completed his Ph.D. under Richard Courant in 1952. He spent much of his career at Princeton University, as a research scientist at the Plasma Physics Laboratory starting in 1951, and then as a professor of astronomy (1961), founder and chair of the Program in Applied and Computational Mathematics (1968), and professor of mathematics (1979). He retired from Princeton University in 1989 and joined the mathematics department of Rutgers University, holding the David Hilbert Chair of Mathematics. Apart from serious mathematical work, Kruskal was kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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