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Cow's Horn (architecture)
A skew arch (also known as an oblique arch) is a method of construction that enables an arch bridge to span an obstacle at some angle other than a right angle. This results in the faces of the arch not being perpendicular to its abutments and its plan view being a parallelogram, rather than the rectangle that is the plan view of a regular, or "square" arch. In the case of a masonry skew arch, the construction requires precise stonecutting, as the cuts do not form right angles, but once the principles were fully understood in the early 19th century, it became considerably easier and cheaper to build a skew arch of brick. The problem of building skew arch masonry bridges was addressed by a number of early civil engineers and mathematicians, including Giovanni Barbara (1726), William Chapman (1787), Benjamin Outram (1798), Peter Nicholson (1828), George Stephenson (1830), Edward Sang (1835), Charles Fox (1836), George W. Buck (1839) and William Froude (c. 1844). History Benj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Sang
Edward Sang FRSE FRSSA LLD (30 January 1805 – 23 December 1890) was a Scottish mathematician and civil engineer, best known for having computed large tables of logarithms, with the help of two of his daughters. These tables went beyond the tables of Henry Briggs, Adriaan Vlacq, and Gaspard de Prony. Personal life Sang was born in Kirkcaldy on 30 January 1805, the son of Jean Nicol and Edward Sang, Provost of Kirkcaldy. He attended the Subscription School in Kirkcaldy and from there went on to study at the University of Edinburgh. In the 1830s he is listed as a teacher of mathematics living at 32 St Andrew Square in Edinburgh. He was elected a Fellow of the Royal Society of Edinburgh in May 1836. In 1884 he was awarded their Makdougall-Brisbane Prize. He served as their Vice President 1883 to 1885. In 1841 he took the role of Professor of Mechanical Science at Manchester New College. In 1854 he briefly served as Professor of Mechanical Science in Constantinople. He retu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navigable Aqueduct
Navigable aqueducts (sometimes called navigable water bridges) are bridge structures that carry navigable waterway canals over other rivers, valleys, railways or roads. They are primarily distinguished by their size, carrying a larger cross-section of water than most water-supply aqueducts. Roman aqueducts were used to transport water and were created in Ancient Rome. The long steel Briare aqueduct carrying the Canal latéral à la Loire over the River Loire was built in 1896. It was ranked as the longest navigable aqueduct in the world for more than a century, until the Magdeburg Water Bridge in Germany took the title in the early 21st century. Early aqueducts such as the three on the Canal du Midi had stone or brick arches, the longest span being on the Cesse Aqueduct, built in 1690. But, the weight of the construction to support the trough with the clay or other lining to make it waterproof made these structures clumsy. In 1796 Longdon-on-Tern Aqueduct, the first la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pietà, Malta
Pietà () is a small harbour town in the Eastern Region of Malta, located near the outskirts of the capital city Valletta. Etymology The name ''Tal-Pietà'' is derived from Italian, and means "Pity", referring to the pity of Our Lady of Sorrows. This name came about from a chapel and rectory built in 1612 dedicated to Our Lady of Sorrows. Description Pietà is the suburb next-closest to the capital after Floriana. Malta's former national hospital, St. Luke's, is located in Tal-Pietà, and an old boathouse of notable historic interest, now in use as a restaurant, is located on the waterfront. The town is named after a Church of Our Lady of Sorrows dating back to the 17th and 18th centuries which is still in active use today. A couple of streets nearby bear the names of St. Augustine and his mother, St. Monica. Tal-Pietà was a departure point for the Gozo ferry before the construction of a yacht marina. The patrol boat depot of the Armed Forces of Malta is located ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maltese People
The Maltese () people are an ethnic group native to Malta who speak Maltese, a Semitic language with a substantial Romance superstratum, and share a common Maltese history and culture characterised by Roman Catholicism, which remains the state religion. Malta, an island country in the Mediterranean Sea, is an archipelago that also includes an island of the same name together with the islands of Gozo () and Comino (); people of Gozo, ''Gozitans'' () are considered a subgroup of the Maltese. History The current Maltese people, characterised by the use of the Maltese language and by Roman Catholicism, are the descendants – through much mixing and hybridisation – of colonists from Sicily and Calabria who repopulated the Maltese islands in the beginning of the second millennium after a two-century lapse of depopulation that followed the Ifriqiyian conquest by the Aghlabids in AD 870. A genetic study by Capelli et al. indicates that Malta was barely in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malta
Malta, officially the Republic of Malta, is an island country in Southern Europe located in the Mediterranean Sea, between Sicily and North Africa. It consists of an archipelago south of Italy, east of Tunisia, and north of Libya. The two official languages are Maltese language, Maltese and English language, English. The country's capital is Valletta, which is the smallest capital city in the EU by both area and population. It was also the first World Heritage Site, World Heritage City in Europe to become a European Capital of Culture in 2018. With a population of about 542,000 over an area of , Malta is the world's List of countries and dependencies by area, tenth-smallest country by area and the List of countries and dependencies by population density, ninth-most densely populated. Various sources consider the country to consist of a single urban region, for which it is often described as a city-state. Malta has been inhabited since at least 6500 BC, during the Mesolith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floriana Lines
The Floriana Lines () are a line of fortifications in Floriana, Malta, which surround the fortifications of Valletta and form the capital city's outer defences. Construction of the lines began in 1636 and they were named after the military engineer who designed them, Pietro Paolo Floriani. The Floriana Lines were modified throughout the course of the 17th and 18th centuries, and they saw use during the Siege of Malta (1798–1800), French blockade of 1798–1800. Today, the fortifications are still largely intact but rather dilapidated and in need of restoration. The Floriana Lines are considered to be among the most complicated and elaborate of the Hospitaller fortifications of Malta. Since 1998, they have been on the tentative list of UNESCO World Heritage Sites, as part of the ''Knights' Fortifications around the Harbours of Malta''. History Background, controversy and construction The city of Valletta was founded on 28 March 1566 by Jean Parisot de Valette, Jean de Valette ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway
Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in railway track, tracks, which usually consist of two parallel steel railway track, rails. Rail transport is one of the two primary means of land transport, next to road transport. It is used for about 8% of passenger and rail freight transport, freight transport globally, thanks to its Energy efficiency in transport, energy efficiency and potentially high-speed rail, high speed.Rolling stock on rails generally encounters lower friction, frictional resistance than rubber-tyred road vehicles, allowing rail cars to be coupled into longer trains. Power is usually provided by Diesel locomotive, diesel or Electric locomotive, electric locomotives. While railway transport is capital intensity, capital-intensive and less flexible than road transport, it can carry heavy loads of passengers and cargo with greater energy efficiency and safety. Precursors of railways driven by human or an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Rome
In modern historiography, ancient Rome is the Roman people, Roman civilisation from the founding of Rome, founding of the Italian city of Rome in the 8th century BC to the Fall of the Western Roman Empire, collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 BC), the Roman Republic (50927 BC), and the Roman Empire (27 BC476 AD) until the fall of the western empire. Ancient Rome began as an Italic peoples, Italic settlement, traditionally dated to 753 BC, beside the River Tiber in the Italian peninsula. The settlement grew into the city and polity of Rome, and came to control its neighbours through a combination of treaties and military strength. It eventually controlled the Italian Peninsula, assimilating the Greece, Greek culture of southern Italy (Magna Graecia) and the Etruscans, Etruscan culture, and then became the dominant power in the Mediterranean region and parts of Europe. At its hei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denbigh Hall Bridge On The London And Birmingham Railway
Denbigh ( ; ) is a market town and a community in Denbighshire, Wales. It was the original county town of the historic county of Denbighshire created in 1536. Denbigh's Welsh name () translates to "Little Fortress"; a reference to its historic castle. Denbigh lies near the Clwydian Hills. History Denbigh anciently formed part of the cantref of Rhufoniog. For much of its history, Rhufoniog was subordinate to the Kingdom of Gwynedd, but it also spent periods under English control during the 12th and 13th centuries. By the 13th century, Denbigh was the main town of Rhufoniog. In 1284, following the Conquest of Wales by Edward I, Rhufoniog was made part of a new marcher lordship called Denbigh or Denbighland, which Edward initially granted to Henry de Lacy, Earl of Lincoln. As part of his campaign to take and retain control of the area, Edward I decided to fortify Denbigh, ordering the construction of Denbigh Castle and town walls, which were begun in 1282. The Burgess Gate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skew Bridge - Geograph
Skew may refer to: In mathematics * Skew lines, neither parallel nor intersecting. * Skew normal distribution, a probability distribution * Skew field or division ring * Skew-Hermitian matrix * Skew lattice * Skew polygon, whose vertices do not lie on a plane * Infinite skew polyhedron * Skew-symmetric graph * Skew-symmetric matrix * Skew tableau, a generalization of Young tableaux * Skewness, a measure of the asymmetry of a probability distribution * Shear mapping In science and technology *Skew, also synclinal or gauche in alkane stereochemistry *Skew ray (optics), an optical path not in a plane of symmetry * Skew arch, not at a right angle In computing * Clock skew * Transitive data skew, an issue of data synchronization In telecommunications * Skew (fax), unstraightness * Skew (antenna) a method to improve the horizontal radiation pattern Other uses * Volatility skew, in finance, a downward-sloping volatility smile * SKEW, the ticker symbol for the CBOE Skew Index See a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Store Street Aqueduct
The Store Street Aqueduct in central Manchester, England, was built in 1798 by Benjamin Outram on the Ashton Canal. A Grade II* listed building, it is built on a skew of 40° across Store Street, and is believed to be the first major aqueduct of its kind in Great Britain and the oldest still in use today. Aqueduct The aqueduct was constructed to cross Shooters Brook. It is built of stone with large voussoirs and retaining walls of coursed masonry and is wide with triangular buttresses. The brook was culverted in about 1805 and Store Street was built over it. The canal is about wide and deep. The arch has a square span and a skew span rising above road level. Generally, where a canal (or later a railway) crossed a road, or vice versa, the road would be diverted to cross at right angles. It had not always been acceptable but attempts to build masonry arch bridges at an angle, or "skew", of greater than 15 degrees had proved unsatisfactory. The method up to that time had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
