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Goit
A leat (; also lete or leet, or millstream) is the name, common in the south and west of England and in Wales, for an artificial watercourse or Aqueduct (watercourse), aqueduct dug into the ground, especially one supplying water to a watermill or its mill pond. Other common uses for leats include delivery of water for hydraulic mining and Buddle pit, mineral concentration, for irrigation, to serve a Dyeing, dye works or other industrial plant, and provision of drinking water to a farm or household or as a catchment cut-off to improve the yield of a reservoir. According to the ''Oxford English Dictionary'', ''leat'' is cognate with ''let'' in the sense of "allow to pass through". Other names for the same thing include ''fleam'' (probably a leat supplying water to a mill that did not have a millpool). In parts of northern England, for example around Sheffield, the equivalent word is ''goit''. In southern England, a leat used to supply water for water-meadow irrigation is often cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonport Leat 6
Devonport may refer to: * Devonport, Plymouth, Devon, England ** HMNB Devonport, naval base/dockyard ** Plymouth Devonport (UK Parliament constituency), parliamentary constituency formerly known as Devonport * Devonport, New Zealand, a suburb of Auckland ** Devonport Naval Base, located in the same suburb * Devonport, Tasmania, a city in Tasmania ** Devonport City Council, the local government area that contains the city See also *Davenport (other) {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weir
A weir or low-head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the water level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs. There are many weir designs, but commonly water flows freely over the top of the weir crest before cascading down to a lower level. There is no single definition as to what constitutes a weir. ''Weir'' can also refer to the skimmer found in most in-ground swimming pools, which controls the flow of water pulled into the filtering system. Etymology The word likely originated from Middle English ''were'', Old English ''wer'', a derivative of the root of the verb ''werian,'' meaning "to defend, dam". The German cognate is ''Wehr'', which means the same as English weir. Function Commonly, weirs are used to prevent flooding, measure water discharge, and help render rivers more Navigability, navigable by boat. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wanlockhead
Wanlockhead is a village in Dumfries and Galloway, Scotland, nestling in the Lowther Hills and south of Leadhills at the head of the Mennock Pass, which forms part of the Southern Uplands. It is Scotland's highest village, the village centre being at an elevation of around above sea level. Some sources, including VisitScotland, cite an altitude of but the highest house in the village has been measured at . The village can be accessed via the B797 road, B797, which connects it to the A76 road, A76 near Sanquhar and the A74(M) and M74 motorways, A74(M) motorway at Abington, South Lanarkshire, Abington. History Wanlockhead takes its name from the Wanlock Water, a stream which rises in the remote hollow which forms the setting of the village. The village owes its existence to the lead and other mineral deposits found in the surrounding hills. These deposits were first exploited by the Roman Empire, Romans, and from the 13th century they began to be worked again in the summer. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leadhills
Leadhills, originally settled for the accommodation of miners, is a village in South Lanarkshire, Scotland, WSW of Elvanfoot. The population in 1901 was 835. It was originally known as Waterhead. It is the second highest village in Scotland, the highest being neighbouring Wanlockhead, south. It is near the source of Glengonnar Water, a tributary of the River Clyde. Local attractions Library The Leadhills Miners' Library (also known as the Allan Ramsay (poet), Allan Ramsay Library or the Leadhills Reading Society), founded in 1741 by 21 miners, the local schoolteacher and the local minister, specifically to purchase a collection of books for its members’ mutual improvement — its membership was not restricted to the miners; several non-miners, such as William Symington, John Brown (physician, born 1810), John Brown (author of ''Rab and his Friends'') and James Braid (surgeon), James Braid, were also full members — houses an extensive antiquarian book collection, loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennines
The Pennines (), also known as the Pennine Chain or Pennine Hills, are a range of highland, uplands mainly located in Northern England. Commonly described as the "Vertebral column, backbone of England" because of its length and position, the range runs from Derbyshire and Staffordshire in the North Midlands, north of the Midlands to Northumberland in North East England. From the River Tyne, Tyne Gap in the north, the range extends south through the North Pennines, Yorkshire Dales, South Pennines, and Peak District to end near the valley of the River Trent. The Border Moors & Forests, Border Moors and Cheviot Hills, which lie beyond the Tyne Gap, are included in some definitions of the range. The range is divided into two by the Aire Gap, a wide pass formed by the valleys of the rivers River Aire, Aire and River Ribble, Ribble. There are several Spur (topography), spurs off the main Pennine range east into Greater Manchester and Lancashire, comprising the Rossendale Valley, Rosse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devon
Devon ( ; historically also known as Devonshire , ) is a ceremonial county in South West England. It is bordered by the Bristol Channel to the north, Somerset and Dorset to the east, the English Channel to the south, and Cornwall to the west. The city of Plymouth is the largest settlement, and the city of Exeter is the county town. The county has an area of and a population of 1,194,166. The largest settlements after Plymouth (264,695) are the city of Exeter (130,709) and the Seaside resort, seaside resorts of Torquay and Paignton, which have a combined population of 115,410. They all are located along the south coast, which is the most populous part of the county; Barnstaple (31,275) and Tiverton, Devon, Tiverton (22,291) are the largest towns in the north and centre respectively. For local government purposes Devon comprises a non-metropolitan county, with eight districts, and the Unitary authorities of England, unitary authority areas of Plymouth City Council, Plymouth an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornwall
Cornwall (; or ) is a Ceremonial counties of England, ceremonial county in South West England. It is also one of the Celtic nations and the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, Devon to the east, and the English Channel to the south. The largest urban area is the Redruth and Camborne conurbation. The county is predominantly rural, with an area of and population of 568,210. After the Redruth-Camborne conurbation, the largest settlements are Falmouth, Cornwall, Falmouth, Penzance, Newquay, St Austell, and Truro. For Local government in England, local government purposes most of Cornwall is a Unitary authorities of England, unitary authority area, with the Isles of Scilly governed by a Council of the Isles of Scilly, unique local authority. The Cornish nationalism, Cornish nationalist movement disputes the constitutional status of Cornwall and seeks greater autonomy within the United Kingdom. Cornwall is the weste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
Silver is a chemical element; it has Symbol (chemistry), symbol Ag () and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Silver is found in the Earth's crust in the pure, free elemental form ("native metal, native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Other than in currency and as an in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead
Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable nuclide, stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its Amphoterism, amphoteric nature; lead and lead oxides react with acids and base (chemistry), bases, and it tends to form covalent bonds. Lead compounds, Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Head
Hydraulic head or piezometric head is a measurement related to liquid pressure (normalized by specific weight) and the liquid elevation above a vertical datum., 410 pages. See pp. 43–44., 650 pages. See p. 22, eq.3.2a. It is usually measured as an equivalent liquid surface elevation, expressed in units of length, at the entrance (or bottom) of a piezometer. In an aquifer, it can be calculated from the depth to water in a piezometric well (a specialized water well), and given information of the piezometer's elevation and screen depth. Hydraulic head can similarly be measured in a column of water using a standpipe piezometer by measuring the height of the water surface in the tube relative to a common datum. The hydraulic head can be used to determine a ''hydraulic gradient'' between two or more points. Definition In fluid dynamics, the ''head'' at some point in an incompressible (constant density) flow is equal to the height of a static column of fluid whose pressure at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
