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Fort De Vaujours
The Fort de Vaujours, located in the commune of Courtry, Seine-Saint-Denis, near the town of Vaujours, is one of the forts built at the end of the 19th century to defend Paris. It became a research center for the Commissariat à l'énergie atomique (CEA), France's Atomic Energy Commission. The center was closed in 1997. History In 1870, France was partly occupied by the Prussian army. As a result of this defeat, the Séré de Rivières system of fortifications was built from 1874–1881 to defend Paris, consisting of 18 forts, five redoubts and 34 batteries. Construction started in 1876 on a roughly pentagonal fort with 48 artillery pieces and a garrison of 691 troops. Work was completed in 1882. The fort was updated in 1911 with a machine gun turret and a Mougin turret with two 155mm guns. The Fort de Vaujours is unique in its association with two annexes connected by a covered way to the main fort. The fort's barracks were burned in 1944. In 1947 the Sevran explosives works u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fortifications Of Paris In The 19th And 20th Centuries
The fortifications of Paris in the 19th and 20th centuries comprise: *The Thiers Wall, surrounding the city of Paris, and farther from the city, *The detached forts and their complementary fieldworks. They were built in two stages: *1840–1845: the Thiers Wall and the first ring of forts, about five kilometers from the city; *1874–1885: the second ring of forts, about twenty kilometers from the city. From a military point of view, Paris is a fortified camp situated in Paris Basin, a basin. During the 19th century, both Prussian invasions (1814–15 and 1870) saw the bombardment of Paris from the surrounding heights. Fortifications were extended outwards after each invasion as the range of artillery continued to develop, in order to deny the use of the heights to the enemy. Chronology Louis XIV 1670 The king demolishes the walls of Wall of Charles V, Paris, Charles V and Louis XIII. Paris becomes an open city and remains so for two centuries. 1689 Vauban recommends th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Courtry
Courtry () is a commune in the Seine-et-Marne département in the Île-de-France region in north-central France. Demographics The inhabitants are called ''Courtrysiens''. See also *Communes of the Seine-et-Marne department The following is a list of the 507 communes of the Seine-et-Marne department of France. The communes cooperate in the following intercommunalities (as of 2020):1999 Land Use, from IAURIF (Institute for Urban Planning and Development of the Paris-Île-de-France région) * [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seine-Saint-Denis
() is a department of France located in the Grand Paris metropolis in the region. In French, it is often referred to colloquially as ' or ' ("ninety-three" or "nine three"), after its official administrative number, 93. Its prefecture is Bobigny. In 2019, it had a population of 1,644,903 across 40 communes.Populations légales 2019: 93 Seine-Saint-Denis INSEE In French, the learned but rarely used demonym for the inhabitants of Seine-Saint-Denis is ; more common is . Geography The department is surrounded by the departments of Hauts-de-Seine, |
Vaujours
Vaujours () is a commune in the northeastern suburbs of Paris, France. It is located from the center of Paris, in the département of Seine-Saint-Denis. Known for its wines and fruit until the end of the 19th century, Vaujours is now one of the world's premier producers of plaster of Paris. History and Heritage The commune is mentioned in documents predating the 9th century. In archives from the twelfth century, it is named as Vallis Jost and Vaujoi, from the Latin for 'valley of joy'. Around the year 1100, the land belonged to Étienne de Senlis, archdeacon of Notre Dame de Paris who gave it in turn as one of many generous gifts of the time to the Abbey of St Victor, Paris. Henry VI of England and (for a time) of France had a hunting lodge near Montauban Hill, where now there is a housing development which bears his name. At the end of the 18th century Saint Nicholas Church was constructed. This building still houses the treasures of sacred art, in particular an 18th-centur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commissariat à L'énergie Atomique
The French Alternative Energies and Atomic Energy Commission or CEA ( French: Commissariat à l'énergie atomique et aux énergies alternatives), is a French public government-funded research organisation in the areas of energy, defense and security, information technologies and health technologies. The CEA maintains a cross-disciplinary culture of engineers and researchers, building on the synergies between fundamental and technological research. CEA is headed by a board headed by the general administrator (currently François Jacq since 20 April 2018), advised by the high-commissioner for atomic energy (currently Patrick Landais). Its yearly budget amounts to €5.1 billion and its permanent staff is slightly over 20,500 persons. It owned Areva. CEA was created in 1945; since then, the successive high-commissioners have been Frédéric Joliot-Curie, Francis Perrin, Jacques Yvon, Jean Teillac, Raoul Dautry, René Pellat, Bernard Bigot, Daniel Verwaerde and François Jacq. It c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prussia
Prussia, , Old Prussian: ''Prūsa'' or ''Prūsija'' was a German state on the southeast coast of the Baltic Sea. It formed the German Empire under Prussian rule when it united the German states in 1871. It was ''de facto'' dissolved by an emergency decree transferring powers of the Prussian government to German Chancellor Franz von Papen in 1932 and ''de jure'' by an Allied decree in 1947. For centuries, the House of Hohenzollern ruled Prussia, expanding its size with the Prussian Army. Prussia, with its capital at Königsberg and then, when it became the Kingdom of Prussia in 1701, Berlin, decisively shaped the history of Germany. In 1871, Prussian Minister-President Otto von Bismarck united most German principalities into the German Empire under his leadership, although this was considered to be a "Lesser Germany" because Austria and Switzerland were not included. In November 1918, the monarchies were abolished and the nobility lost its political power during the Ger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Séré De Rivières System
The system was named after Raymond Adolphe Séré de Rivières, its originator. The system was an ensemble of fortifications built from 1874 along the frontiers and coasts of France. The fortresses were obsolescent by 1914 but were used during the First World War. Background Following the Franco-Prussian War of 1870–1871, France found itself seriously weakened and isolated from the rest of Europe, menaced by Germany and stung by the loss of Alsace-Lorraine. At the same time as the departure of the last German troops, France created the Defence Committee (), which was active between 1872 and 1888, whose mission was to reorganize the defence of the French frontiers and coasts. It was necessary to compensate for the lost territories of the north-east; to modernise old fortifications, which had been shown to be wanting in the last war and to create new fortifications proof against modern weaponry using new and more powerful explosives. The committee was created by a preside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mougin Turret
The Mougin turret is a land-based revolving gun turret that housed some of the heaviest armament in French fortifications of the late 19th and early 20th centuries. While not reliably resistant to the explosive shells of opposing artillery, Mougin turrets remained active through 1940, when they engaged German and Italian forces during the Battle of France and the Italian invasion of France. The turrets were used at twenty-two forts of the Séré de Rivières system built in the 1870s. The Mougin turret was named for its designer, Commandant Mougin, who developed the first turret in 1875. The turret consists of two 155mm guns under a bowl-shaped armor shield, sunk into the ground and surrounded by a thick concrete apron that protected the multi-level traverse and loading facilities below. The turret is distinguished from naval turrets by the absence of protruding barrels. Two oval ports show just the muzzles of the guns. By contrast with naval practice, in which guns pivot in elev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caponier
A caponier is a type of defensive structure in a fortification. Fire from this point could cover the ditch beyond the curtain wall to deter any attempt to storm the wall. The word originates from the French ', meaning "chicken coop" (a ''capon'' is a castrated male chicken). In some types of bastioned fortifications, the caponier served as a means of access to the outworks, protecting troops from direct fire; they were often roofless. Although they could be used for firing along the ditch, the flanks of the bastions were the main defence of the ditch by fire. In later polygonal forts, caponiers were often roofed, and were not intended as a type of ''covered way'', but as the main way of keeping the ditch clear of the enemy. History Originally the term referred to a covered passageway that traversed the ditch outside the curtain of a fortress. Fire from this point could cover the ditch beyond the curtain wall to deter any attempt to storm the wall. Thus the passageway was equip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
