Alnsjøen
Alnsjøen (also called Alunsjøen) is a lake in Lillomarka in Oslo, Norway. The lake is drained by the Alna River to the Oslofjord. The surrounding area was utilized for copper mining during the 18th century. The lake functions as a minor water reservoir A reservoir (; ) is an enlarged lake behind a dam, usually built to store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of water, interrupt ... for the city of Oslo (the main water reservoir being the lake Maridalsvannet). File:Alunsjøen 09-01-02.jpg, Alnsjøen in winter File:Alunsjødammen.jpg, The dam of Alnsjøen References Lakes of Oslo {{Norway-lake-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Lillomarka
Lillomarka is an area located to the northeast of Oslo, Norway. It is a part of Oslomarka and serves as a popular recreational area. Lillomarka is bordered by Maridalen and Nordmarka in the west, Nittedal and Gjelleråsen in the east, the suburbs Bjerke and Grorud in the south and the Gjøvik rail line and Movatn in the north. The name The first element is the name of the farm ''Lillo'' (see Storo), the last element is the finite form of ''mark'' f 'woodland, forest'. History Lillomarka contains the old Gothalfske copper mines, Alnsjø lake (one of Oslo’s sources of drinking water), and Breisjø lake. Several of the lakes in Lillomarka were used for harvesting ice; the ice dam at Årvoll and Vesletjern (Lilletjern) at Ammerud were both important sources of ice for the people of Oslo. Vesletjern was used until 1945, whereas ice was harvested from the ice-dam at Årvoll until as late as 1967-68. Today, Vesletjern is a public lake for swimming. In recent years Lillomarka ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Alna River
The Alna River''Berlitz: Oslo Pocket Guide''. 2013. London: Berlitz. () is a river that runs through Oslo, Norway, from Alnsjøen to the Oslo Fjord at Bjørvika. It also drains Breisjøen, Steinbruvann, Tokerudbekken, and Østensjøvannet. It runs through the boroughs of Gamle Oslo, Nordstrand, Helsfyr, Østensjø, Alna, and Grorud. Large sections of the river run in culvert A culvert is a structure that channels water past an obstacle or to a subterranean waterway. Typically embedded so as to be surrounded by soil, a culvert may be made from a pipe (fluid conveyance), pipe, reinforced concrete or other materia ...s and the river is highly polluted, partially because it is used as a sewer drain. The Municipality of Oslo is creating linked walking trails and green spaces along the length of the Alna. References Rivers of Oslo Rivers of Norway {{Norway-river-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Oslo
Oslo ( or ; ) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of 1,064,235 in 2022, and the metropolitan area had an estimated population of in 2021. During the Viking Age, the area was part of Viken. Oslo was founded as a city at the end of the Viking Age in 1040 under the name Ánslo, and established as a ''kaupstad'' or trading place in 1048 by Harald Hardrada. The city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around the year 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 reduced its influence. After being destroyed by a fire in 1624, during the reign of King Christian IV, a new city was built closer to Akershus Fortress and named Christiania in honour of the king. It became a municipality ('' formannskapsdistrikt'') on 1 January 1838. ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Norwegian Water Resources And Energy Directorate
The Norwegian Water Resources and Energy Directorate ( or NVE) is a Norwegian government agency established in 1921. It is under the Ministry of Petroleum and Energy and regulates the country's water resources and energy supply. Its mandate includes contingency planning for floods, serving as a centre of expertise for hydrology, research and development, and increasing energy efficiency. It is a member of the Council of European Energy Regulators. The directorate is based in Oslo and has regional offices in Hamar, Førde, Tønsberg, Trondheim, and Narvik. It also establishes international contacts and undertakes work abroad in developing countries for the Norwegian Agency for Development Cooperation. , it had over 400 employees. Its website includes statistics on Norwegian energy consumption, production, and prices and a database of Norwegian lakes and water catchment areas. The directorate is administratively responsible for the Watercourse Regulation Act (1917), Indu ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Oslofjord
The Oslofjord (, ; ) is an inlet in southeastern Norway. The fjord begins at the small village of Bonn in Frogn, Frogn Municipality and stretching northwards to the city of Oslo, and then curving to the east and then south again. It then flows south to an imaginary line running between the Torbjørnskjær Lighthouse and Færder Lighthouse where it becomes part of the Skagerrak strait. The Skagerrak connects the North Sea and the Kattegat sea area, which leads to the Baltic Sea. The Oslofjord is not a fjord in the geological sense, but in the Norwegian language, the term can refer to a wide range of waterways including inlets such as this one. The bay is divided into the inner () and Ytre Oslofjord, outer () Oslofjord, separated by the long by wide Drøbak Sound. The innermost part is known as Bunnefjorden. Fjord From 1624 until 1925 the name of the fjord was (or ), since Christiania was the name of the capital during this period (the ''Ch'' was changed to a ''K'' in 1877) ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Copper Mining
Copper extraction is the multi-stage process of obtaining copper from list of copper ores, its ores. The conversion of copper ores consists of a series of physical, chemical, and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental law, environmental regulations, and other factors. The copper smelters with the highest production capacity (metric tons of copper yearly) lie in China, Chile, India, Germany, Japan, Peru and Russia. China alone has over half of the world's production capacity and is also the world's largest consumer of refined copper. Precious metals and sulfuric acid are often valuable by-products of copper refining. Arsenic is the main type of impurity found in copper concentrates to enter smelting facilities. There has been an increase in arsenic in copper concentrates over the years since shallow, low-arsenic copper deposits have been progressively depleted. History Prehistory The Old Copper Compl ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Store Norske Leksikon
The ''Great Norwegian Encyclopedia'' (, abbreviated ''SNL'') is a Norwegian-language online encyclopedia. It has several subdivisions, including the Norsk biografisk leksikon. The online encyclopedia is among the most-read Norwegian published sites, with up to 3.5 million unique visitors per month. Paper editions (1978–2007) The ''SNL'' was created in 1978, when the two publishing houses Aschehoug and Gyldendal merged their encyclopedias and created the company Kunnskapsforlaget. Up until 1978 the two publishing houses of Aschehoug and Gyldendal, Norway's two largest, had published ' and ', respectively. The respective first editions were published in 1906–1913 (Aschehoug) and 1933–1934 (Gyldendal). The slump in sales of paper-based encyclopedias around the turn of the 21st century hit Kunnskapsforlaget hard, but a fourth edition of the paper encyclopedia was secured by a grant of ten million Norwegian kroner from the foundation Fritt Ord in 2003. The f ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Oslo Byleksikon
''Oslo byleksikon'' () is an encyclopaedia on Oslo, Norway's capital city. It has been published in five editions since 1938. The third, fourth and the fifth editions were published in cooperation between the heritage association Selskabet for Oslo Byes Vel and the publishing house Kunnskapsforlaget. The latest edition was published in 2010, comprising approximately 6,100 entries. Editions First edition (1938) The first edition of ''Oslo byleksikon'' was published by the Tanum publishing house. It was written and edited by the geographer Aksel Arstal (1855–1940), who was more than 80 years old at the time of publication. In the edition's preface, Arstal states that "the book should contain everything what an Oslo citizen ought to know about the city and the region he frequently visits". Arstal also stated that he wanted the entries in the encyclopedia to be "short, accurate and factual" and without "passion". The edition strictly followed the new orthographic reform of 1938, ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Carl Just
Carl Just (10 September 1897 – 16 October 1990) was a Norwegian journalist. Early and personal life He was born in Kristiania to the wholesaler Carl Johan Beckman (1871–1931) and his wife Selma Augusta Just (1877–1946). Just grew up in Kristiania with foster parents. He never met his father, but met his mother once in his adult life. He married Margaretha Aximia Lundqvist (1894–1969) in 1919. Career In 1917–19, he worked as a journalist in the Norwegian newspaper ''Dagbladet''. After that, he moved to Bergen, where he became editor-in-chief of '' Folkets Avis''. From 1921 to 1928, he was an editor of the Christian newspaper '' Dagen''. Thereafter, he worked in the news department of the broadcasting corporation in Bergen for two years. He edited ''Morgenbladet'' from 1928 to 1936. After a brief period in '' Bergens Aftenblad'', Just became the editor-in-chief of a number of weekly magazines and yearbooks. Just was the rector of the Norwegian Journalist Academy throu ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Water Reservoir
A reservoir (; ) is an enlarged lake behind a dam, usually built to store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, excavating, or building any number of retaining walls or levees to enclose any area to store water. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley and rely on the natural topography to provide most of the basin of the reservoir. These reservoirs can either be ''on-stream reservoirs'', which are located on the original streambed of the downstream river and are filled by creeks, rivers or rainwater that runs off the surrounding forested catchments, or ''off-stream reservoirs'', which receive diverted water from a nearby stream or aqueduct or pipeline water from other on-stream reservoirs. Dams are typically lo ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Maridalsvannet
Maridalsvannet () is a lake in Maridalen, Oslo, Norway. It is the largest lake in the municipality of Oslo, serving as its primary drinking water supply. The lake drains via the river Akerselva to the Oslofjord. The primary inflows are Skjærsjøelva and Dausjøelva. The Hammeren Hydroelectric Power Station exploits the fall from Skjærsjøen to Maridalsvannet. The shores of the lake and substantial areas of woods and fields around it are owned by the city of Oslo to protect the water supply. Some farms are still operated under city supervision, but others were closed down in the mid-20th century; their remains are marked by historical signs. Hiking, cycling, and cross-country ski trails run near the south side of the lake and connect to the system of trails in the forests that surround Oslo. They can be reached by a short walk from the Kjelsås trolley, bus, or train stations. Trails run alongside Akerselva from the Marridalsvannet dam to near the Oslofjord. The Gjøvik Lin ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |