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François Coignet
François Coignet (10 February 1814 – 30 October 1888) was a French industrialist and a pioneer in the development of reinforced concrete as the first person to use iron-reinforced concrete to construct buildings.Day, p. 284 Biography Coignet, along with his brothers Louis (b. 1819) and Stephane (b. 1820), took over the family business, a chemical plant in Lyon, in 1846. In 1847, he built some concrete houses using poured cement that was not reinforced with iron. In 1850, Coignet married Clarisse Gauthier (1823-1918) and a year later, he settled in Saint-Denis, a commune near Paris, where in 1852 he opened a second plant and obtained a patent for cement clinker. Coignet then built a cement factory at Saint-Denis using exposed lime walls and followed the pisé de terre system, a rammed-earth method of construction. This was the first time he worked with this method in concrete. Later, he took out a patent in England entitled "''Emploi de Béton''", which gave details of h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyon
Lyon,, ; Occitan: ''Lion'', hist. ''Lionés'' also spelled in English as Lyons, is the third-largest city and second-largest metropolitan area of France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, northeast of Saint-Étienne. The City of Lyon proper had a population of 522,969 in 2019 within its small municipal territory of , but together with its suburbs and exurbs the Lyon metropolitan area had a population of 2,280,845 that same year, the second most populated in France. Lyon and 58 suburban municipalities have formed since 2015 the Metropolis of Lyon, a directly elected metropolitan authority now in charge of most urban issues, with a population of 1,411,571 in 2019. Lyon is the prefecture of the Auvergne-Rhône-Alpes region and seat of the Departmental Council of Rhône (whose jurisdiction, however, no longer extends over the Metropolis of Lyo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slag
Slag is a by-product of smelting (pyrometallurgical) ores and used metals. Broadly, it can be classified as ferrous (by-products of processing iron and steel), ferroalloy (by-product of ferroalloy production) or non-ferrous/base metals (by-products of recovering non-ferrous materials like copper, nickel, zinc and phosphorus). Within these general categories, slags can be further categorized by their precursor and processing conditions (e.g., Blast furnace (BF) slags, air-cooled blast furnace (ACBF) slag, basic oxygen furnace (BOF) slag, and electric arc furnace (EAF) slag) . Due to the large demand for these materials, slag production has also significantly increased throughout the years despite recycling (most notably in the iron and steelmaking industries) and upcycling efforts. The World Steel Association (WSA) estimates that 600 kg of by-products (~90 wt% is slags) are generated per tonne of steel produced. Composition Slag is usually a mixture of metal oxides and sili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse Of Port Said
The Port Said Lighthouse is one of the most important architectural and tourist landmarks in the city of Port Said in Egypt. Considered a unique example for the evolution of architecture during the nineteenth century in the city, the lighthouse was designed by François Coignet at the request of the Khedive of Egypt and Sudan, Ismail the Magnificent Isma'il Pasha ( ar, إسماعيل باشا ; 12 January 1830 – 2 March 1895) was the Khedive of Khedivate of Egypt, Egypt and conqueror of Sudan (region), Sudan from 1863 to 1879, when Tewfik Pasha, he was removed at the behest of Great Brit .... Construction was completed in 1869, one week prior to the inauguration of the Suez Canal. The lighthouse was built to guide ships passing through the canal. The lighthouse has an octagonal shaped tower that is 56 m high. History From 1868 until the end of his reign, Khedive Ismail ordered the construction of lighthouses at different points across Egypt's Mediterranean coast. Among t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trocadéro
The Trocadéro (), site of the Palais de Chaillot, is an area of Paris, France, in the 16th arrondissement, across the Seine from the Eiffel Tower. It is also the name of the 1878 palace which was demolished in 1937 to make way for the Palais de Chaillot. The hill of the Trocadéro is the hill of Chaillot, a former village. Origin of the name The place was named in honour of the Battle of Trocadero, in which the fortified Isla del Trocadero, in southern Spain, was captured by French forces led by the Duc d'Angoulême, son of the future King of France, Charles X, on 31 August 1823. France had intervened on behalf of King Ferdinand VII of Spain, whose rule was contested by a liberal rebellion. After the battle, the autocratic Spanish Bourbon Ferdinand VII was restored to the throne of Spain. François-René de Chateaubriand said "To stride across the lands of Spain at one go, to succeed there, where Bonaparte had failed, to triumph on that same soil where the arms of the fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passy Cemetery
Passy Cemetery (french: Cimetière de Passy) is a small cemetery in Passy, in the 16th arrondissement of Paris, France. History The current cemetery replaced the old cemetery (''l'ancien cimetière communal de Passy'', located on Rue Lekain), which was closed in 1802. In the early 19th century, on the orders of Napoleon I, Emperor of the French, all the cemeteries in Paris were replaced by several large new ones outside the precincts of the capital. Montmartre Cemetery was built in the north, Père Lachaise Cemetery in the east, and Montparnasse Cemetery in the south. Passy Cemetery was a later addition, but has its origins in the same edict. The current entrance was built in 1934 (designed by René Berger). The retaining wall of the cemetery is adorned with a bas relief (by Louis Janthial) commemorating the soldiers who fell in World War I. Notes Opened in 1820 in the expensive residential and commercial districts of the Right Bank near the ''Champs-Élysées'', by 1874 the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Said
Port Said ( ar, بورسعيد, Būrsaʿīd, ; grc, Πηλούσιον, Pēlousion) is a city that lies in northeast Egypt extending about along the coast of the Mediterranean Sea, north of the Suez Canal. With an approximate population of 603,787 (2010), it is the List of cities and towns in Egypt, fifth-largest city in Egypt. The city was established in 1859 during the building of the Suez Canal. There are numerous old houses with grand balconies on all floors, giving the city a distinctive look. Port Said's twin city is Port Fuad, which lies on the eastern bank of the Suez Canal. The two cities coexist, to the extent that there is hardly any town centre in Port Fuad. The cities are connected by free Ferry, ferries running all through the day, and together they form a metropolitan area with over a million residents that extends both on the African and the Asian sides of the Suez Canal. The only other metropolitan area in the world that also spans two continents is Istanbul. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aqueduct (water Supply)
An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term ''aqueduct'' is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose. The term ''aqueduct'' also often refers specifically to a bridge carrying an artificial watercourse. Aqueducts were used in ancient Greece, ancient Egypt, and ancient Rome. The simplest aqueducts are small ditches cut into the earth. Much larger channels may be used in modern aqueducts. Aqueducts sometimes run for some or all of their path through tunnels constructed underground. Modern aqueducts may also use pipelines. Historically, agricultural societies have constructed aqueducts to irrigate crops and supply large cities with drinking water. Etymology The word ''aqueduct'' is derived from the Latin words (''water'') and (''led'' or ''guided''). Ancient aqueducts Although particularly associated with the Romans, aqueducts we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aqueduct De La Vanne
Aqueduct may refer to: Structures * Aqueduct (bridge), a bridge to convey water over an obstacle, such as a ravine or valley *Navigable aqueduct, or water bridge, a structure to carry navigable waterway canals over other rivers, valleys, railways or roads * Aqueduct (water supply), a watercourse constructed to convey water **Acequia, a community-operated watercourse used in Spain and former Spanish colonies in the Americas **Aryk, an artificial channel for redirecting water in Central Asia and other countries ** Elan aqueduct carries water to Birmingham **Levada, an irrigation channel or aqueduct specific to the Portuguese island of Madeira **Puquios, underground water systems in Chile and Peru * Roman aqueduct, water supply systems constructed during the Roman Empire **Aqueduct of Segovia, a Roman aqueduct in Segovia, Spain Anatomy *Cerebral aqueduct in the brain *Vestibular aqueduct in the inner ear Places *Aqueduct, former name of Monolith, California, U.S. *Aqueduct, New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Le Vésinet
Le Vésinet () is a suburban commune in the Yvelines department in the Île-de-France region in north-central France. It is a part of the affluent outer suburbs of western Paris, from the centre of Paris. In 2019, it had a population of 15,943. Le Vésinet is one of the wealthiest suburbs of Paris, known for its wooded avenues, mansions and lakes. It contains many public gardens designed by French landscape gardener Paul de Lavenne, comte de Choulot. History The commune of Le Vésinet was created on 31 May 1875 by detaching a part of the territory of Chatou and merging it with a part of the territory of Croissy-sur-Seine and a part of the territory of Le Pecq. Geography Le Vésinet is located in a bend of the Seine, but has no access to the river. It is 16.4 km (10.2 mi) west of Paris and 4 km east of Saint-Germain-en-Laye. The surrounding communes are Chatou on the east, Croissy-sur-Seine on the south, Le Pecq on the west, and Montesson on the north. The ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebar
Rebar (short for reinforcing bar), known when massed as reinforcing steel or reinforcement steel, is a steel bar used as a Tension (physics), tension device in reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under Compression (physics), compression, but has weak tensile strength. Rebar significantly increases the tensile strength of the structure. Rebar's surface features a continuous series of ribs, lugs or indentations to promote a better bond with the concrete and reduce the risk of slippage. The most common type of rebar is carbon steel, typically consisting of hot-rolled round bars with deformation patterns embossed into its surface. Steel and concrete have similar coefficient of thermal expansion, coefficients of thermal expansion, so a concrete structural member reinforced with steel will experience minimal differential stress (mechanics), stress as the temperature changes. Other readily available ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exposition Universelle (1855)
The Exposition Universelle of 1855 was an International Exhibition held on the Champs-Élysées in Paris from 15 May to 15 November 1855. Its full official title was the Exposition Universelle des produits de l'Agriculture, de l'Industrie et des Beaux-Arts de Paris 1855. Today the exposition's sole physical remnant is the Théâtre du Rond-Point des Champs-Élysées designed by architect Gabriel Davioud, which originally housed the Panorama National. History The exposition was a major event in France, then newly under the reign of Emperor Napoleon III. It followed London's Great Exhibition of 1851 and attempted to surpass that fair's Crystal Palace with its own Palais de l'Industrie. The arts displayed were shown in a separate pavilion on Avenue Montaigne. There were works from artists from 29 countries, including French artists François Rude, Ingres, Delacroix and Henri Lehmann, and British artists William Holman Hunt and John Everett Millais. However, Gustave Courbet, having h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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