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Manapōuri Power Station
Manapōuri Power Station is an Underground power station, underground hydroelectricity, hydroelectric power station on the western arm of Lake Manapouri in Fiordland National Park, in the South Island of New Zealand. At 854 MW installed capacity (although limited to 800 MW due to resource consent limits), it is the largest hydroelectric power station in New Zealand, and the second largest power station in New Zealand. The station is noted for the controversy and environmental protests by the Save Manapouri Campaign against raising the level of Lake Manapouri to increase the station's hydraulic head, which galvanised New Zealanders and was one of the foundations of the New Zealand environmental movement. Completed in 1971, Manapōuri was built primarily to supply electricity for the Tiwai Point aluminium smelter near Bluff, New Zealand, Bluff, some to the southeast. The station utilises the drop between the western arm of Lake Manapouri and the Deep Cove, New Zealand, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of island countries, sixth-largest island country by area and lies east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The Geography of New Zealand, country's varied topography and sharp mountain peaks, including the Southern Alps (), owe much to tectonic uplift and volcanic eruptions. Capital of New Zealand, New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and subsequently developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluff, New Zealand
Bluff (), previously known as Campbelltown and often referred to as "The Bluff", is a town and seaport in the Southland region, on the southern coast of the South Island of New Zealand serving as the main port of Invercargill. It is the southernmost town in mainland New Zealand and, despite Slope Point and Stewart Island being further south, Bluff is colloquially used to refer to the southern extremity of the country (particularly in the phrase "from Cape Reinga to The Bluff"). According to the 2018 census, the resident population was 1,797, a decrease of 6 since 2013. The Bluff area was one of the earliest areas of New Zealand where a European presence became established. The first ship known to have entered the harbour was the ''Perseverance'' in 1813, in search of flax trading possibilities, with the first European settlers arriving in 1823 or 1824. This is the foundation for the claim [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller islands. It has a total area of , making it the list of countries and dependencies by area, sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and Climate of Australia, climates including deserts of Australia, deserts in the Outback, interior and forests of Australia, tropical rainforests along the Eastern states of Australia, coast. The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the Last Glacial Period, last glacial period. By the time of British settlement, Aboriginal Australians spoke 250 distinct l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bauxite
Bauxite () is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (), boehmite (γ-AlO(OH)), and diaspore (α-AlO(OH)), Mixture, mixed with the two iron oxides goethite (FeO(OH)) and haematite (), the aluminium Clay minerals, clay mineral kaolinite () and small amounts of anatase () and ilmenite ( or ). Bauxite appears dull in Lustre (mineralogy), luster and is reddish-brown, white, or tan. In 1821, the French people, French geologist Pierre Berthier discovered bauxite near the village of Les Baux-de-Provence, Les Baux in Provence, southern France. Formation Numerous classification schemes have been proposed for bauxite but, , there was no consensus. Vadász (1951) distinguished Laterite, lateritic bauxites (silicate bauxites) from karst bauxite ores (carbonate bauxites): * The carbonate bauxites occur predominantly in Europe, Guyana, Suriname, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comalco
Rio Tinto Aluminium (previously known as Comalco) is now known as Rio Tinto Alcan after Rio's takeover of Alcan. It was the world's eighth largest aluminium company. It mines and manufactures bauxite, alumina and primary aluminium. Rio Tinto Aluminium is a wholly owned subsidiary of Rio Tinto Group and provides about 20% of Australia's total production of bauxite, 8% of its alumina and 24% of its primary aluminium. In 2002, Rio Tinto Aluminium earned US$ The United States dollar (Currency symbol, symbol: Dollar sign, $; ISO 4217, currency code: USD) is the official currency of the United States and International use of the U.S. dollar, several other countries. The Coinage Act of 1792 introdu ...256 million for its shareholder Rio Tinto. In 2006 Rio Tinto Aluminium was the largest receiver of budgetary assistance from the Australian government, Rio Tinto Aluminium had received over $287 million in assistance from Australian tax dollars. RTA owns the Weipa bauxite min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Evans (geologist)
Henry James Evans (7 November 1912 – 9 November 1990) was the leading exploration geologist and discoverer of the immense bauxite deposits near Weipa, on the west coast of Cape York Peninsula in northern Queensland, Australia. Evans was born on 7 November 1912, in Greymouth, a mining centre on the west coast of the South Island of New Zealand. After graduating from high school he studied geology at the Reefton School of Mines. After working evaluating gold dredging areas on the west coast and later for a tin mining company, he joined New Zealand Petroleum as senior geologist in 1938 and spent six years with them before spending most of 1945 assessing the resources of the Greymouth Coal Basin with the New Zealand Geological Survey. In 1946 he moved to Australia joining the Zinc Corporation (now Rio Tinto) and worked for them looking for oil, gas in Australia, uranium at Rum Jungle, and for potash in the United Kingdom. In 1955, he was asked to lead a group of American oil ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasman Sea
The Tasman Sea is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer Abel Janszoon Tasman, who in 1642 was the first known person to cross it. British explorer Lieutenant James Cook later extensively navigated the Tasman Sea in the 1770s during his three voyages of exploration. The Māori people of New Zealand call this sea ''Te Moana-a-Rehua'' meaning 'the sea of Rehua' which clashes with the Pacific waters named ''Te Tai-o-Whitirea'' ('the sea of Whitirea') – after Whitirea, Rehua's lover – at Cape Reinga, the northernmost tip of North Island. Climate The south of the sea is passed over by depressions going from west to east. The northern limit of these westerly winds is near to 40th parallel south, 40°S. During the southern winter, from April to October, the northern branch of these winds from the west changes its direction toward th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Head (hydraulic)
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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrodynamics
In physics, physical chemistry and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids – liquids and gases. It has several subdisciplines, including (the study of air and other gases in motion) and (the study of water and other liquids in motion). Fluid dynamics has a wide range of applications, including calculating forces and moments on aircraft, determining the mass flow rate of petroleum through pipelines, predicting weather patterns, understanding nebulae in interstellar space, understanding large scale geophysical flows involving oceans/atmosphere and modelling fission weapon detonation. Fluid dynamics offers a systematic structure—which underlies these practical disciplines—that embraces empirical and semi-empirical laws derived from flow measurement and used to solve practical problems. The solution to a fluid dynamics problem typically involves the calculation of various properties of the fluid, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manapouri
Manapouri is a small town in Southland / Fiordland, in the southwest corner of the South Island, in New Zealand. The township is the westernmost municipality in New Zealand. Located at the edge of the Fiordland National Park, on the eastern shore of Lake Manapouri, close to its outflow into the Waiau River, tourist boat services are based in the town. Manapouri township is a 20-minute drive from Te Anau via The town is the gateway to both Doubtful Sound and Dusky Sound and the starting point for many local walking tracks. It is a popular tourist destination, particularly during the summer months. History At the intersection of State Highway 95 and Hillside Road is a monument to the Save Manapouri campaign which marks the first mass environmental movement in New Zealand history. The Manapouri Hydroelectric Power Station is located on the West Arm of Lake Manapouri, with most of the electricity generated serving the Tiwai Point Aluminium Smelter Workers at the po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearl Harbour, New Zealand
Pearl Harbour is a small harbour at the head of the Waiau River, in the town of Manapouri on the South Island of New Zealand. The harbour and town are located at the south-east corner of Lake Manapouri. The name was given to the harbour soon after the Japanese attack on Pearl Harbor, Hawaii in 1941. Pearl Harbour is used mainly by ferry and water taxi operators transporting Meridian Energy staff across Lake Manapouri to the Manapouri Hydroelectric Power Station, on the West Arm of the lake. Ferries also carry tourists travelling to the power station and onwards to Doubtful Sound / Patea, located on the coast beyond the West Arm. It also provides easy access to Lake Manapouri Lake Manapouri () is located in the South Island of New Zealand. The lake is situated within the Fiordland National Park and the wider region of Te Wahipounamu South West New Zealand World Heritage Area. Māori History According to Māori peop ... for recreational boat users. References Lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevator
An elevator (American English) or lift (Commonwealth English) is a machine that vertically transports people or freight between levels. They are typically powered by electric motors that drive traction cables and counterweight systems such as a hoist, although some pump hydraulic fluid to raise a cylindrical piston like a jack. Elevators are used in agriculture and manufacturing to lift materials. There are various types, like chain and bucket elevators, grain augers, and hay elevators. Modern buildings often have elevators to ensure accessibility, especially where ramps aren't feasible. High-speed elevators are common in skyscrapers. Some elevators can even move horizontally. History Pre-industrial era The earliest known reference to an elevator is in the works of the Roman architect Vitruvius, who reported that Archimedes ( – ) built his first elevator probably in 236 BC. Sources from later periods mention elevators as cabs on a hemp rope, powered by people o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
