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Abaeté River
The Abaeté River is a river of Minas Gerais state in southeastern Brazil. Its origin is in the Serra da Canastra, about north of São Gotardo and it passes through São Gonçalo do Abaeté. The river runs nearly north and empties into the São Francisco River, the confluence being located at . The Pontal area at the Abaeté River mouth is an important spawning site for fish. Geography The Abaeté flows for and its width varies between to . It is a rock-bottomed highland river, containing clay sediments. It traverses through nine municipalities in Minas Gerais: * São Gotardo * Rio ParanaÃba * Matutina * Arapuá * Tiros * Carmo do ParanaÃba * Patos de Minas * Varjão de Minas * São Gonçalo do Abaeté Geology Noted for its diamond mines, diamonds were first discovered in the river during the period of 1780-85. Several of the largest diamonds found in Brazil originated here, though medium or low quality stones are more common. A diamond, known as the Abaeté brill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minas Gerais
Minas Gerais () is a state in Southeastern Brazil. It ranks as the second most populous, the third by gross domestic product (GDP), and the fourth largest by area in the country. The state's capital and largest city, Belo Horizonte (literally "Beautiful Horizon"), is a major urban and finance center in Latin America, and the sixth largest municipality in Brazil, after the cities of São Paulo, Rio de Janeiro, Salvador, BrasÃlia and Fortaleza, but its metropolitan area is the third largest in Brazil with just over 5.8 million inhabitants, after those of São Paulo and Rio de Janeiro. Nine Brazilian presidents were born in Minas Gerais, the most of any state. The state has 10.1% of the Brazilian population and is responsible for 8.7% of the Brazilian GDP. With an area of —larger than Metropolitan France—it is the fourth most extensive state in Brazil. The main producer of coffee and milk in the country, Minas Gerais is known for its heritage of architecture and colonia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reuters
Reuters ( ) is a news agency owned by Thomson Reuters Corporation. It employs around 2,500 journalists and 600 photojournalists in about 200 locations worldwide. Reuters is one of the largest news agencies in the world. The agency was established in London in 1851 by the German-born Paul Reuter. It was acquired by the Thomson Corporation of Canada in 2008 and now makes up the media division of Thomson Reuters. History 19th century Paul Reuter worked at a book-publishing firm in Berlin and was involved in distributing radical pamphlets at the beginning of the Revolutions in 1848. These publications brought much attention to Reuter, who in 1850 developed a prototype news service in Aachen using homing pigeons and electric telegraphy from 1851 on, in order to transmit messages between Brussels and Aachen, in what today is Aachen's Reuters House. Reuter moved to London in 1851 and established a news wire agency at the London Royal Exchange. Headquartered in London, Reuter' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecological Station (Brazil)
An ecological station ( pt, Estação Ecológica) in Brazil is a type of protected area of Brazil as defined by the National System of Conservation Units (SNUC). The purpose is to preserve untouched representative samples of the different biomes in Brazil. Objectives and restrictions In the 1970s the Special Secretariat of the Environment under the environmentalist Paulo Nogueira Neto launched a program of ''estações ecológicas'' (ecological stations) with the aim of establishing a network of reserves that would protect representative samples of all Brazilian ecosystems. The objective of an ecological station is to preserve nature and conduct scientific research. It establishes the right of eminent domain, with the private areas included in its boundaries requiring expropriation Nationalization (nationalisation in British English) is the process of transforming privately-owned assets into public assets by bringing them under the public ownership of a national governmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guanabara Bay
Guanabara Bay ( pt, BaÃa de Guanabara, ) is an oceanic bay located in Southeast Brazil in the state of Rio de Janeiro. On its western shore lie the cities of Rio de Janeiro and Duque de Caxias, and on its eastern shore the cities of Niterói and São Gonçalo. Four other municipalities surround the bay's shores. Guanabara Bay is the second largest bay in area in Brazil (after the All Saints' Bay), at , with a perimeter of . Guanabara Bay is long and wide at its maximum. Its wide mouth is flanked at the eastern tip by the Pico do Papagaio (Parrot's Peak) and the western tip by Pão de Açúcar (Sugar Loaf). The name Guanabara comes from the Tupi language, ''goanã-pará'', from ''gwa'' "bay", plus ''nã'' "similar to" and ''ba'ra'' "sea". Traditionally, it is also translated as "the bosom of sea". History Guanabara Bay was first encountered by Europeans on January 1, 1502, when one of the Portuguese explorers Gaspar de Lemos and Gonçalo Coelho arrived on its shores. Accor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marmelos Zero Power Plant
The Marmelos Zero Power Plant is a decommissioned hydroelectric power plant on the Paraibuna River in Juiz de Fora, Minas Gerais, Brazil. Inaugurated in 1889, plant was the first major hydroelectric power plant constructed in South America, specifically for public use. It was purchased by CEMIG in 1980 and now serves as a museum. The Marmelos IA and II downstream are still in operation and are serviced by the original dam. History Bernardo Mascarenhas (1846-1899) became a resident of Juiz de Fora and as an adult became interested in providing electricity for the city. In 1886, Mascarenhas and banker Francisco Batista de Oliveira received approval from the city to use the Marmelos Falls for electric production and they subsequently incorporated the Minas Electricity Company. In February 1889, construction on the power plant began and by August, it began to produce initial electricity. The plant was inaugurated on September 5, 1889. The power plant was supported by a long and hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectricity
Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other Renewable energy, renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of Low-carbon power, low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Três Marias Dam
The Três Marias Dam, also known as Bernardo Mascarenhas, is an embankment dam on the São Francisco River near Três Marias in Minas Gerais, Brazil. It was constructed for hydroelectric power production and flood control. The dam was completed in 1961 and its first generator was operational in 1962. The dam's power plant is named after Bernard Mascarenhas who in 1889, built South America's first major hydroelectric power plant in Brazil, the Marmelos Zero Power Plant. Background Construction on the dam began in May 1957 with a goal to stabilize the river's flow, improve navigation and to produce hydroelectric power. 10,000 people worked on the project and Brazilian President Juscelino Kubitschek was influential in the dam's construction pace. The majority of the dam works were completed in January 1961 and its first generator was operational in 1962. The other five generators went online by 1969. The dam does not have a fish ladder and effectively halted fish migration in the up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetism
Magnetism is the class of physical attributes that are mediated by a magnetic field, which refers to the capacity to induce attractive and repulsive phenomena in other entities. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments. Magnetism is one aspect of the combined phenomena of electromagnetism. The most familiar effects occur in ferromagnetic materials, which are strongly attracted by magnetic fields and can be magnetized to become permanent magnets, producing magnetic fields themselves. Demagnetizing a magnet is also possible. Only a few substances are ferromagnetic; the most common ones are iron, cobalt, and nickel and their alloys. The rare-earth metals neodymium and samarium are less common examples. The prefix ' refers to iron because permanent magnetism was first observed in lodestone, a form of natural iron ore called magnetite, Fe3O4. All substances exhibit some type of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platinum
Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish , a diminutive of "silver". Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements. It has six naturally occurring isotopes. It is one of the rarer elements in Earth's crust, with an average abundance of approximately 5 μg/kg. It occurs in some nickel and copper ores along with some native deposits, mostly in South Africa, which accounts for ~80% of the world production. Because of its scarcity in Earth's crust, only a few hundred tonnes are produced annually, and given its important uses, it is highly valuable and is a major precious metal commodity. Platinum is one of the least reactive metals. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. Consequent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palladium
Palladium is a chemical element with the symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by the English chemist William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). They have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. More than half the supply of palladium and its congener platinum is used in catalytic converters, which convert as much as 90% of the harmful gases in automobile exhaust (hydrocarbons, carbon monoxide, and nitrogen dioxide) into nontoxic substances (nitrogen, carbon dioxide and water vapor). Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, groundwate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Varjão De Minas
Varjão de Minas is a municipality in the north of the Brazilian state of Minas Gerais. Its population in 2020 was 7,138 inhabitants in a total area of 653 km2. Varjão de Minas belongs to the Paracatu statistical microregion. The elevation of the municipal seat is 900 meters. It became a municipality in 1995. This municipality is located on federal highway BR-3658 km. northeast of Patos de Minas. Neighboring municipalities are: Presidente Olegário, São Gonçalo do Abaeté, João Pinheiro and Bom Sucesso de Patos. The main economic activities are cattle raising (32,000 head in 2006) and farming. There was also production of charcoal from eucalyptus plantations. This charcoal is transported to the industrial region near Belo Horizonte to be used in the steel and iron industry. The GDP was R$69,613,000 (2005). There were 02 banking agencies in 2006. In the rural area there were 277 farms with 50,000 hectares of agricultural land, 6,000 hectares of which we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
São Francisco River
The São Francisco River (, ) is a large river in Brazil. With a length of , it is the longest river that runs entirely in Brazilian territory, and the fourth longest in South America and overall in Brazil (after the Amazon, the Paraná and the Madeira). It used to be known as the by the indigenous people before colonisation, and is today also known as . The São Francisco originates in the Canastra mountain range in the central-western part of the state of Minas Gerais. It runs generally north in the states of Minas Gerais and Bahia, behind the coastal range, draining an area of over , before turning east to form the border between Bahia on the right bank and the states of Pernambuco and Alagoas on the left one. After that, it forms the boundary between the states of Alagoas and Sergipe and washes into the Atlantic Ocean. In addition to the five states which the São Francisco directly traverses or borders, its drainage basin also includes tributaries from the state of Goià ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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