|
Aeromovel
An atmospheric railway uses differential air pressure to provide power for propulsion of a railway vehicle. A static power source can transmit motive power to the vehicle in this way, avoiding the necessity of carrying mobile power generating equipment. The air pressure, or partial vacuum (i.e., negative relative pressure) can be conveyed to the vehicle in a continuous pipe, where the vehicle carries a piston running in the tube. Some form of re-sealable slot is required to enable the piston to be attached to the vehicle. Alternatively the entire vehicle may act as the piston in a large tube or be coupled electromagnetically to the piston. Several variants of the principle were proposed in the early 19th century, and a number of practical forms were implemented, but all were overcome by unforeseen disadvantages and discontinued within a few years. A modern proprietary system has been developed and is in use for short-distance applications. Porto Alegre Metro airport connection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeromóvel De Porto Alegre
The Porto Alegre Metro (Portuguese: ''Metrô de Porto Alegre'', commonly called ''Trem'' or ''Trensurb'') is a transit system operated jointly by the federal government, the state government of Rio Grande do Sul and the city of Porto Alegre through the company Trensurb (Company of Urban Trains of Porto Alegre SA) in Brasil. It has 22 stations, totaling of route, and carries about 175,000 users a day. History The Line 1 of the subway built in Porto Alegre was started in 1980, linking the center of Porto Alegre to cities to the north of the metropolitan area, as Canoas, Esteio, Sapucaia do Sul, São Leopoldo and Novo Hamburgo. The choice of path was made to relieve the heavy traffic of highway BR-116, the only option before the construction of this line, which already had serious problems with the transit at the time. The Line 1 was inaugurated on March 2, 1985 between the Central Public Market and Sapucaia do Sul, covering a route of and 15 stations. Extensions In Decembe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porto Alegre Metro
The Porto Alegre Metro (Portuguese: ''Metrô de Porto Alegre'', commonly called ''Trem'' or ''Trensurb'') is a transit system operated jointly by the federal government, the state government of Rio Grande do Sul and the city of Porto Alegre through the company Trensurb (Company of Urban Trains of Porto Alegre SA) in Brasil. It has 22 stations, totaling of route, and carries about 175,000 users a day. History The Line 1 of the subway built in Porto Alegre was started in 1980, linking the center of Porto Alegre to cities to the north of the metropolitan area, as Canoas, Esteio, Sapucaia do Sul, São Leopoldo and Novo Hamburgo. The choice of path was made to relieve the heavy traffic of highway BR-116, the only option before the construction of this line, which already had serious problems with the transit at the time. The Line 1 was inaugurated on March 2, 1985 between the Central Public Market and Sapucaia do Sul, covering a route of and 15 stations. Extensions In Decembe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porto Alegre
Porto Alegre (, , Brazilian ; ) is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of 1,488,252 inhabitants (2020) makes it the List of largest cities in Brazil, twelfth most populous city in the country and the center of Brazil's List of metropolitan areas in Brazil, fifth largest metropolitan area, with 4,405,760 inhabitants (2010). The city is the southernmost capital city of a Brazilian state. Porto Alegre was founded in 1769 by Manuel Jorge Gomes de Sepúlveda, who used the pseudonym José Marcelino de Figueiredo to hide his identity; but the official date is 1772 with the act signed by Immigration to Brazil, immigrants from the Azores, Portugal. The city lies on the eastern bank of the Guaíba Lake, where five rivers converge to form the Lagoa dos Patos, a giant freshwater lagoon navigable by even the largest of ships. This five-river junction has become an important alluvial port as well as a chief industrial and commercial center ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tallow
Tallow is a rendering (industrial), rendered form of beef or mutton fat, primarily made up of triglycerides. In industry, tallow is not strictly defined as beef or mutton fat. In this context, tallow is animal fat that conforms to certain technical criteria, including its melting point. Commercial tallow commonly contains fat derived from other animals, such as lard from domestic pig, pigs, or even from plant sources. The adjacent diagram shows the chemical structure of a typical triglyceride molecule. The solid material remaining after rendering is called cracklings, greaves, or graves. It has been used mostly for animal feed, animal food, such as dog food#History, dog food. In the soap industry and among soap-making hobbyists, the name tallowate is used informally to refer to soaps made from tallow. soap, Sodium tallowate, for example, is obtained by reacting tallow with sodium hydroxide (lye, caustic soda) or sodium carbonate (washing soda). It consists chiefly of a varia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London And Croydon Railway
The London and Croydon Railway (L&CR) was an early railway in England. It opened in 1839 and in February 1846 merged with other railways to form the London Brighton and South Coast Railway (LB&SCR). Origins The Croydon line and other railways The Surrey Iron Railway had been opened in 1806 between Wandsworth and Croydon; it was a plateway operating on the toll principle, in which carriers could move wagons with their own horses. However, the Surrey Iron Railway's terminal on the Thames was rather far west and sea-going vessels were discouraged from connecting with it.John Howard Turner, ''The London Brighton and South Coast Railway: I - Origins and Formation'', B T Batsford Ltd, London, 1977, Edge railways using locomotive traction represented a clear technological advance, marked particularly by the Stockton and Darlington Railway (1825) and the Liverpool and Manchester Railway (1830), and promoters put forward a scheme to link Croydon, then an industrial town, with London. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint-Germain-en-Laye
Saint-Germain-en-Laye () is a commune in the Yvelines department in the Île-de-France in north-central France. It is located in the western suburbs of Paris, from the centre of Paris. Inhabitants are called ''Saint-Germanois'' or ''Saint-Germinois''. With its elegant tree-lined streets it is one of the more affluent suburbs of Paris, combining both high-end leisure spots and exclusive residential neighborhoods (see the Golden Triangle of the Yvelines). Saint-Germain-en-Laye is a sub-prefecture of the department. Because it includes the National Forest of Saint-Germain-en-Laye, it covers approximately , making it the largest commune in the Yvelines. It occupies a large loop of the Seine. Saint-Germain-en-Laye lies at one of the western termini of Line A of the RER. History Saint-Germain-en-Laye was founded in 1020 when King Robert the Pious (ruled 996–1031) founded a convent on the site of the present Church of Saint-Germain. In 1688, James II of England exiled hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Le Pecq
Le Pecq () is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the western suburbs of Paris, from the center of Paris. Geography The commune of Le Pecq is located in a loop of the Seine river, west of Paris, at the foot of the chateau of Saint-Germain-en-Laye. Le Pecq's territory is astride the two banks of the Seine and includes a small island, Corbière. It is highly urbanized except for Corbière island, which is partially protected as a nesting zone for migratory birds. Until after the Second World War, there were swimming baths on the island. Le Pecq was famous for two other establishments related to water: a spa exploiting springs on St-Germain hill and a natural water swimming pool which was 100 metres long with sand beaches. It borders the communes of Saint-Germain-en-Laye and Mareil-Marly in the west, Montesson and Le Mesnil-le-Roi (Carrières-sous-Bois district) to the north, Croissy-sur-Seine and Le Vésin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Cubitt
Sir William Cubitt FRS (bapt. 9 October 1785 – 13 October 1861) was an eminent English civil engineer and millwright. Born in Norfolk, England, he was employed in many of the great engineering undertakings of his time. He invented a type of windmill sail and the prison treadwheel, and was employed as chief engineer, at Ransomes of Ipswich, before moving to London. He worked on canals, docks, and railways, including the South Eastern Railway and the Great Northern Railway. He was the chief engineer of Crystal Palace erected at Hyde Park in 1851. He was president of the Institution of Civil Engineers between 1850 and 1851. Early life Cubitt was born in Dilham, Norfolk, the son of Joseph Cubitt of Bacton Wood, a miller, and Hannah Lubbock. He attended the village school. His father moved to Southrepps, and William at an early age was employed in the mill, but in 1800 was apprenticed to James Lyon, a cabinet-maker at Stalham, from whom he parted after four years. At Bacton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Stephenson
Robert Stephenson Fellow of the Royal Society, FRS HFRSE FRSA Doctor of Civil Law, DCL (16 October 1803 – 12 October 1859) was an English civil engineer and designer of locomotives. The only son of George Stephenson, the "Father of Railways", he built on the achievements of his father. Robert has been called the greatest engineer of the 19th century. Life Robert was born in Willington Quay near Wallsend, Northumberland, the son of George Stephenson and his wife, Frances Henderson. The family moved to Killingworth, where Robert was taught at the local village school. Robert attended the middle-class Percy Street Academy in Newcastle and at the age of fifteen was apprenticed to the mining engineer Nicholas Wood. He left before he had completed his three years to help his father survey the Stockton and Darlington Railway. Robert spent six months at Edinburgh University before working for three years as a mining engineer in Colombia. When he returned his father was building t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isambard Kingdom Brunel
Isambard Kingdom Brunel (; 9 April 1806 – 15 September 1859) was a British civil engineer who is considered "one of the most ingenious and prolific figures in engineering history," "one of the 19th-century engineering giants," and "one of the greatest figures of the Industrial Revolution, hochanged the face of the English landscape with his groundbreaking designs and ingenious constructions." Brunel built dockyards, the Great Western Railway (GWR), a series of steamships including the first propeller-driven transatlantic steamship, and numerous important bridges and tunnels. His designs revolutionised public transport and modern engineering. Though Brunel's projects were not always successful, they often contained innovative solutions to long-standing engineering problems. During his career, Brunel achieved many engineering firsts, including assisting in the building of the first tunnel under a navigable river (the River Thames) and the development of the , the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
