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Kasner
Kasner is a surname. Notable people with the surname include: * Angela Merkel, née Kasner (born 1954), German Chancellor * Edward Kasner (1878–1955), American mathematician, Tutor on Mathematics in the Columbia University Mathematics Department * Marliese Kasner (born Marliese Miller) (born 1982), Canadian curler from Canwood, Saskatchewan *Stephen Kasner (1970–2019), painter, illustrator, musician, photographer, graphic artist, and magician See also * Kasner metric, an exact solution to Einstein's theory of general relativity * Kasner polygon In geometry, the midpoint polygon of a polygon is the polygon whose vertices are the midpoints of the edges of . It is sometimes called the Kasner polygon after Edward Kasner, who termed it the ''inscribed polygon'' "for brevity". Examples ... of a polygon is the polygon whose vertices are the midpoints of the edges of * Kasner's dwarf burrowing skink (''Scelotes kasneri'') is a species of skink in the family Scincidae * Kas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Kasner
Edward Kasner (April 2, 1878 – January 7, 1955) was an American mathematician who was appointed Tutor on Mathematics in the Columbia University Mathematics Department. Kasner was the first Jewish Jews ( he, יְהוּדִים, , ) or Jewish people are an ethnoreligious group and nation originating from the Israelites Israelite origins and kingdom: "The first act in the long drama of Jewish history is the age of the Israelites""The ... person appointed to a faculty position in the sciences at Columbia University. Subsequently, he became an adjunct professor in 1906, and a full professor in 1910, at the university. Differential geometry was his main field of study. In addition to introducing the term "googol", he is known also for the Kasner metric and the Kasner polygon. Education Kasner's 1899 PhD dissertation at Columbia University was titled ''The Invariant Theory of the Inversion Group: Geometry upon a Quadric Surface''; it was published by the American Mathe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasner Metric
The Kasner metric (developed by and named for the American mathematician Edward Kasner in 1921)Kasner, E. "Geometrical theorems on Einstein’s cosmological equations." ''Am. J. Math.'' 43, 217–221 (1921). is an exact solution to Albert Einstein's theory of general relativity. It describes an anisotropic universe without matter (i.e., it is a vacuum solution). It can be written in any spacetime dimension D>3 and has strong connections with the study of gravitational chaos. Metric and conditions The metric in D>3 spacetime dimensions is :\texts^2 = -\textt^2 + \sum_^ t^ textx^j2, and contains D-1 constants p_j, called the ''Kasner exponents.'' The metric describes a spacetime whose equal-time slices are spatially flat, however space is expanding or contracting at different rates in different directions, depending on the values of the p_j. Test particles in this metric whose comoving coordinate differs by \Delta x^j are separated by a physical distance t^\Delta x^j. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angela Merkel
Angela Dorothea Merkel (; ; born 17 July 1954) is a German former politician and scientist who served as Chancellor of Germany from 2005 to 2021. A member of the Christian Democratic Union (CDU), she previously served as Leader of the Opposition from 2002 to 2005 and as Leader of the Christian Democratic Union from 2000 to 2018. Merkel was the first female chancellor of Germany. During her tenure as Chancellor, Merkel was frequently referred to as the ''de facto'' leader of the European Union (EU), the most powerful woman in the world, and since 2016 the leader of the free world. Merkel was born in Hamburg in then-West Germany, moving to East Germany as an infant when her father, a Lutheran clergyman, received a pastorate in Perleberg. She obtained a doctorate in quantum chemistry in 1986 and worked as a research scientist until 1989. Merkel entered politics in the wake of the Revolutions of 1989, briefly serving as deputy spokeswoman for the first democratically elected Go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephen Kasner
Stephen Kasner (April 3, 1970 – December 25, 2019) was an American Multidisciplinary, multidisciplinary artist from Cleveland, Ohio, United States. Primarily a painter and illustrator but also a musician, photographer, graphic artist, occultist and Magician (illusion), magician; Kasner was mainly known through his cover artwork designs for bands such as Rotting Christ, Decrepit (band), Decrepit, Sunn O))), Integrity (band), Integrity, Marduk (band), Marduk, & Pulling Teeth (band), Pulling Teeth among many others. His paintings have been exhibited all over the world and are noted for their wikt:sinister, sinister (sometimes satanism, satanic) themes and otherworldly aesthetic; influencing a new wave of artists in the dark arts. His artwork, drawings and photographs usually reflect visions of a pre/post-apocalyptic industrial landscape and the struggle for survival contained in dreams of enlightenment. Besides working in paint, photography, and drawings Stephen Kasner also create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marliese Kasner
Marliese Kasner ( Miller; born January 8, 1982, in Prince Albert, Saskatchewan) is a Canadians, Canadian curling, curler from Shellbrook, Saskatchewan. She is a former member of her sister, Stefanie Lawton's team. Career Kasner is a two-time Canadian Junior Curling Championships, Canadian Junior Champion, having won the title in 2000 Canadian Junior Curling Championships, 2000 playing third for her sister, and winning it in her own right as skip 2003 Canadian Junior Curling Championships, in 2003. At the 2000 World Junior Curling Championships, Kasner won a silver medal with her sister, and at the 2003 World Junior Curling Championships, 2003 World Juniors, she won the gold medal for Canada, defeating Cassandra Johnson of the United States in the final. After Juniors, Kasner joined back with her sister, playing as her third. In 2005, the Lawton rink won the Saskatchewan Scott Tournament of Hearts and would represent Saskatchewan at the 2005 Scott Tournament of Hearts for the fir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasner Polygon
In geometry, the midpoint polygon of a polygon is the polygon whose vertices are the midpoints of the edges of . It is sometimes called the Kasner polygon after Edward Kasner, who termed it the ''inscribed polygon'' "for brevity". Examples Triangle The midpoint polygon of a triangle is called the medial triangle. It shares the same centroid and medians with the original triangle. The perimeter of the medial triangle equals the semiperimeter of the original triangle, and the area is one quarter of the area of the original triangle. This can be proven by the midpoint theorem of triangles and Heron's formula. The orthocenter of the medial triangle coincides with the circumcenter of the original triangle. Quadrilateral The midpoint polygon of a quadrilateral is a parallelogram called its Varignon parallelogram. If the quadrilateral is simple, the area of the parallelogram is one half the area of the original quadrilateral. The perimeter of the parallelogram equals the su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasner's Dwarf Burrowing Skink
Kasner's dwarf burrowing skink (''Scelotes kasneri''), also known commonly as Kasner's burrowing skink, is a species of lizard in the family Scincidae. Geographic range ''Scelotes kasneri'' is endemic to the Western Cape coast of South Africa. Description The limbs of ''S. kasneri'' are greatly reduced. The forelimbs are entirely lost, and the hind limbs retain only two digits. Reproduction ''S. kasneri'' is viviparous. Etymology The specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ..., ''kasneri'', as well as the common names, are in honor of J.H. Kasner, collector of the type specimen.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Scelotes kasneri' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kassner
Kassner is a surname. Notable people with the surname include: * Edward Kassner (1920–1996), music executive * Eli Kassner (1924–2018), guitar teacher and musician * Helmut Kassner (born 1946), motorcycle road racer * Helmut Kassner (military officer) (1897–1960) * Horst Kassner, motorcycle road racer * Kerstin Kassner (born 1958), German politician * Rudolf Kassner (1873–1959), writer See also * Kasner Kasner is a surname. Notable people with the surname include: * Angela Merkel, née Kasner (born 1954), German Chancellor * Edward Kasner (1878–1955), American mathematician, Tutor on Mathematics in the Columbia University Mathematics Department * ... {{surname German-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
