Châtelet - Les Halles (Paris RER)
In medieval times, a châtelet () was a little castle or fortress, wherein the ''Châtelain'' (female ''chatelaine'') or governor lodged. Châtelet or Chatelet may refer to: Places Belgium * Châtelet, Belgium, a municipality in the province of Hainaut France * Grand Châtelet, a former stronghold with courts, police, and prisons on the site of the Place du Châtelet * Place du Châtelet, a public square in Paris, on the right bank of the Seine on the border of the 1st and 4th arrondissements * Théâtre du Châtelet, a theatre in Paris, on the Place du Châtelet * Châtelet (Paris Métro), a Metro station in Paris, located near the Place du Châtelet * Châtelet - Les Halles (Paris RER), the central commuter train station in Paris, attached to both the Châtelet and Les Halles metro stations * Le Châtelet-sur-Meuse, a commune in Haute-Marne that is near the source of the Meuse Switzerland * Le Châtelet (mountain), in Switzerland Other uses * Châtelet surface, a surface ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Châtelain
Châtelain (from la, castellanus, derived from ''castellum''; pertaining to a castle, fortress. Middle English: '' castellan'' from Anglo-Norman: ''castellain'' and Old French: ''castelain'') was originally the French title for the keeper of a castle.Abraham Rees Ebers, "CASTELLAIN", in: The Cyclopædia, or Universal Dictionary of Arts, Sciences, and Literature' (London: Longman, Hurst, Rees, Orme & Brown, 1819), vol. 6. History With the growth of the feudal system, the title gained in France a special significance which it never acquired in England since the Norman conquest, as implying the jurisdiction of which the castle became the centre. The ''châtelain'' was originally, in Carolingian times, an official of the ''comte'' (count); with the development of feudalism the office became a fief, and so ultimately hereditary. In this as in other respects the ''châtelain'' was the equivalent of the viscount. Sometimes the two titles were combined, but more usually there were no v ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Châtelet, Belgium
Châtelet (; wa, Tcheslet) is a city and municipality of Wallonia located in the province of Hainaut, Belgium. It lies on the river Sambre. As of January 1, 2018, Châtelet had a total population of 36,101. The total area of the municipality is 27.03 km² which gives a population density of 1,336 inhabitants per km². The municipality consists of the following districts: Bouffioulx, Châtelet, and Châtelineau. Châtelet was a long established independent city prior to its fusion with the other entities. History Origins and Middle Ages The first settlers of the site of Châtelet, dating from paleolithic times, were attracted by the ford on the river, the nearby wooded areas and flint-rich highlands. This region was continuously populated, first by Celtic, then Gallo-Roman peoples, until the Germanic invasions of the 4th and 5th century. In the 9th century, the land was likely part of emperor Louis the Pious’s estate. The first occurrence of the name ''Châtelet' ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Grand Châtelet
The Grand Châtelet was a stronghold in Ancien Régime Paris, on the right bank of the Seine, on the site of what is now the Place du Châtelet; it contained a court and police headquarters and a number of prisons. The original building on the site may have been a wooden tower constructed by Charles the Bald in 870 to defend the then new Grand-Pont bridge (now replaced by the Pont au Change), but it is known that Louis VI built a stronger structure in stone, a ''châtelet'' ('small castle'), in 1130; it was called the Grand Châtelet in contrast to the Petit Châtelet built around the same time at the end of the Petit Pont, on the south bank of the Seine. It lost its defensive purpose in 1190 when Philip Augustus built a rampart around the perimeter of the city; from then on it served as the headquarters of the ''prévôt de Paris'', the official "charged with protection of royal rights, oversight of royal administration, and execution of royal justice" in late medieval Paris. T ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Place Du Châtelet
The Place du Châtelet () is a public square in Paris, on the right bank of the river Seine, on the borderline between the 1st and 4th arrondissements. It lies at the north end of the Pont au Change, a bridge that connects the ÃŽle de la Cité, near the Palais de Justice and the Conciergerie, to the right bank. The closest métro station is Châtelet Features The name "Châtelet" refers to the stronghold, the Grand Châtelet, that guarded the northern end of the Pont au Change, containing the offices of the ''prévôt de Paris'' and a number of prisons, until it was demolished from 1802 to 1810.Jacques Hillairet, ''Dictionnaire historique des rues de Paris'', 8th ed. (Éditions de Minuit, 1985), Vol. 1, pp. 331-34. At the square's center is the Fontaine du Palmier, designed in 1806 by architect and engineer François-Jean Bralle (1750-1832) to celebrate French victories in battle. It has a circular basin, in diameter, from which a column rises in the form of a pal ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Théâtre Du Châtelet
The Théâtre du Châtelet () is a theatre and opera house, located in the place du Châtelet in the 1st arrondissement of Paris, France. One of two theatres (the other being the Théâtre de la Ville) built on the site of a ''châtelet'', a small castle or fortress, it was designed by Gabriel Davioud at the request of Baron Haussmann between 1860 and 1862. Originally named the Théâtre Impérial du Châtelet, it has undergone remodeling and name changes over the years. Currently it seats 2,500 people. Description The theatre is one of two apparent twins constructed along the quays of the Seine, facing each other across the open Place du Châtelet. The other is the Théâtre de la Ville. Their external architecture is essentially Palladian entrances under arcades, although their interior layouts differ considerably. At the centre of the plaza is an ornate, sphinx-endowed fountain, erected in 1808, which commemorates Napoleon's victory in Egypt. Origins The Théâtre Impà ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Châtelet (Paris Métro)
Châtelet () is a station of the Paris Métro and ÃŽle-de-France's RER commuter rail service, located in the centre of medieval Paris, on the border between the 1st and 4th arrondissements. It serves RER A, RER B and RER D, as well as Line 1, Line 4, Line 7, Line 11 and Line 14 of the Paris Métro; it is the southern terminus of Line 11. The station is made up of two parts connected by a long corridor: Lines 7 and 11 under the Place du Châtelet and the Quai de Gesvre (site of the original medieval river port of Paris), next to the Seine; Lines 1, 4 and 14 towards Rue Saint-Denis and the Rue de Rivoli. Châtelet is connected by another long underground corridor to the southern end of the RER platforms at Châtelet–Les Halles, the northern end of which is again connected to the Métro station Les Halles. The distance from Line 7 at Châtelet to the RER lines at Châtelet–Les Halles is approximately . It is the ninth-busiest station on the Métro system. Location ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Châtelet - Les Halles (Paris RER)
In medieval times, a châtelet () was a little castle or fortress, wherein the ''Châtelain'' (female ''chatelaine'') or governor lodged. Châtelet or Chatelet may refer to: Places Belgium * Châtelet, Belgium, a municipality in the province of Hainaut France * Grand Châtelet, a former stronghold with courts, police, and prisons on the site of the Place du Châtelet * Place du Châtelet, a public square in Paris, on the right bank of the Seine on the border of the 1st and 4th arrondissements * Théâtre du Châtelet, a theatre in Paris, on the Place du Châtelet * Châtelet (Paris Métro), a Metro station in Paris, located near the Place du Châtelet * Châtelet - Les Halles (Paris RER), the central commuter train station in Paris, attached to both the Châtelet and Les Halles metro stations * Le Châtelet-sur-Meuse, a commune in Haute-Marne that is near the source of the Meuse Switzerland * Le Châtelet (mountain), in Switzerland Other uses * Châtelet surface, a surface ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Le Châtelet-sur-Meuse
Le Châtelet-sur-Meuse (, literally ''Le Châtelet on Meuse'') is a commune in the Haute-Marne department in north-eastern France. It contains the source of the River Meuse, which is very close the commune's village of Pouilly-en-Bassigny. References See also *Communes of the Haute-Marne department The following is a list of the 426 communes in the French department of Haute-Marne. The communes cooperate in the following intercommunalities (as of 2020):Chateletsurmeuse {{HauteMarne-geo-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Le Châtelet (mountain)
Le Châtelet (2,537 m) is a mountain of the Swiss Mont Blanc massif, overlooking Orsières in the canton of Valais Valais ( , , ; frp, Valês; german: Wallis ), more formally the Canton of Valais,; german: Kanton Wallis; in other official Swiss languages outside Valais: it, (Canton) Vallese ; rm, (Chantun) Vallais. is one of the cantons of Switzerland, 26 .... It lies between the valleys of Orny and Saleina. References External links Le Châtelet on Hikr Mountains of the Alps Mountains of Valais Mountains of Switzerland Two-thousanders of Switzerland {{Valais-geo-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Châtelet Surface
In algebraic geometry, a Châtelet surface is a rational surface studied by given by an equation :y^2-az^2=P(x), \, where ''P'' has degree 3 or 4. They are conic bundle In algebraic geometry, a conic bundle is an algebraic variety that appears as a solution of a Cartesian equation of the form : X^2 + aXY + b Y^2 = P (T).\, Theoretically, it can be considered as a Severi–Brauer surface, or more precisely as ...s. References * * {{DEFAULTSORT:Chatelet Surface Algebraic surfaces Complex surfaces ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Albert Châtelet
Albert Châtelet (24 October 1883 – 30 June 1960) was a French politician and mathematician. Biography Châtelet was a student at the École normale supérieure (Paris) from 1905 to 1908, succeeding to the Agrégation (a highly selective competitive examination for future high-school teachers) in 1908. After earning a doctorate in 1911 and serving first in the health service, then in a ballistic research unit during the First World War, Châtelet became a lecturer at École centrale de Lille and in 1920 a professor at Université de Lille, rising to the rank of vice-chancellor by 1924. After thirteen years of chancellorship he was appointed as the director of secondary education by the Ministry of National Education, where he served under Jean Zay until 1940. In 1945 he joined the Faculty of Science at the University of Paris, succeeding Jean Cabannes as its dean in 1949. After his retirement as dean in 1954, Châtelet began participating in political movements at the forefron ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Émilie Du Châtelet
Gabrielle Émilie Le Tonnelier de Breteuil, Marquise du Châtelet (; 17 December 1706 – 10 September 1749) was a French natural philosopher and mathematician from the early 1730s until her death due to complications during childbirth in 1749. Her most recognized achievement is her translation of and commentary on Isaac Newton's 1687 book '' Philosophiæ Naturalis Principia Mathematica'' containing basic laws of physics. The translation, published posthumously in 1756, is still considered the standard French translation. Her commentary includes a contribution to Newtonian mechanics—the postulate of an additional conservation law for total energy, of which kinetic energy of motion is one element. This led to her conceptualization of energy as such, and to derive its quantitative relationships to the mass and velocity of an object. Her philosophical magnum opus, ''Institutions de Physique'' (Paris, 1740, first edition; ''Foundations of Physics''), circulated widely, generated h ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |