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Ardey Hills
The Ardey Hills ( or ''Ardey'') are a range of wooded hills, up to , in the territory of the city of Dortmund and the districts of Ennepe-Ruhr-Kreis and Unna in the German state of North Rhine-Westphalia. The hills form part of the eastern Rhenish Massif and, to a lesser extent, to the Berg-Mark Hills (''Bergisch-Märkisches Hügelland''). Geography Location The Ardey Hills, together with the Haarstrang, run from east to west, separating two major natural units: the Westphalian Lowland including the Emscher Depression and Hellwegbörde in the north from the Süder Uplands and lower Sauerland in the south, the Ardey being counted as part of the Süder Uplands and the Haarstrang the Westphalian Lowland. From a topographical perspective, the Ardey Hills are the western foothills of the sparsely wooded and mainly agricultural Haarstrang. However it is different, not only from a cultural landscape point of view, but also geologically (a decisive factor being the carboniferous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wetter (Ruhr)
Wetter (Ruhr) () is a town in western Germany, in the federal state of North Rhine-Westphalia and the district of Ennepe-Ruhr-Kreis. The river Ruhr (river), Ruhr flows through the urban area, separating the district of Alt-Wetter from the districts of Esborn, Volmarstein and Wengern. The cities of Dortmund and Bochum are within 20 minutes by road or rail. Geography Neighbour municipalities Neighbour municipalities are Gevelsberg, Hagen, Herdecke, Sprockhövel and Witten. The Cities of Dortmund, Bochum, Essen and Wuppertal are near. City arrangement * Alt-Wetter * Wengern * Esborn ** Albringhausen * Volmarstein ** Grundschöttel ** Oberwengern ** Schmandbruch Population History The town of Wetter is first documented in the year 1214 in relation with the Castle Wetter and the knights Bruno and Friedrich. Another famous castle ruin is the Castle Volmarstein which was built in the 11th century by the Roman Catholic Archdiocese of Cologne, archbishop of Cologne Frederick I (Archbi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous
The Carboniferous ( ) is a Geologic time scale, geologic period and System (stratigraphy), system of the Paleozoic era (geology), era that spans 60 million years, from the end of the Devonian Period Ma (million years ago) to the beginning of the Permian Period, Ma. It is the fifth and penultimate period of the Paleozoic era and the fifth period of the Phanerozoic eon (geology), eon. In North America, the Carboniferous is often treated as two separate geological periods, the earlier Mississippian (geology), Mississippian and the later Pennsylvanian (geology), Pennsylvanian. The name ''Carboniferous'' means "coal-bearing", from the Latin ("coal") and ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern "system" names, it was coined by geologists William Conybeare (geologist), William Conybeare and William Phillips (geologist), William Phillips in 1822, based on a study of the British rock succession. Carboniferous is the per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klusenberg
The Klusenberg is, at , the highest elevation on the territory of the city of Dortmund. The Klusenberg part of the Ardey Hills lies west of the Hohensyburg The Syberg is a hill in the Ruhr in the southern part of Dortmund, 240 m above Normalnull, sea level (NN), which is part of the Ardey Hills. The Syberg is home to the Sigiburg, the Vincke Tower, a monument to William I, German Emperor, Emperor Wil .... To the south its slopes fall away into the Hengsteysee lake. The Klusenberg is wooded with just a few residential houses. References Dortmund Mountains and hills of North Rhine-Westphalia Mountains and hills of the Rhenish Massif {{Dortmund-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normalnull
("standard zero") or (short N. N. or NN) is an outdated official vertical datum used in Germany. Elevations using this reference system were to be marked (“meters above standard zero”). has been replaced by (NHN). History In 1878 reference heights were taken from the Amsterdam Ordnance Datum and transferred to the New Berlin Observatory in order to define the 1879. has been defined as a level going through an imaginary point 37.000 m below . When the New Berlin Observatory was demolished in 1912 the reference point was moved east to the village of (now part of the town of , Brandenburg, Germany).: . In: ' 1958, vol 14, issue 2, p. 62–66 References {{Authority control Vertical datums Geography of Germany ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Witten
Witten () is a city with almost 100,000 inhabitants in the Ennepe-Ruhr-Kreis (district) in North Rhine-Westphalia, in western Germany. Geography Witten is situated in the Ruhr valley, in the southern Ruhr area. Bordering municipalities * Bochum * Dortmund * Herdecke * Wetter (Ruhr) * Sprockhövel * Hattingen Boroughs Witten is divided into eight boroughs and each borough is further divided into two or more city-districts. Every district has its own district-number: * Witten-Mitte: 11 Innenstadt, 12 Oberdorf-Helenenberg, 13 Industriegebiet-West, 14 Krone, 15 Crengeldanz, 16 Hauptfriedhof, 17 Stadion, 18 Industriegebiet-Nord, 19 Hohenstein * Düren: 21 Düren-Nord, 22 Düren-Sued * Stockum: 31 Stockum-Mitte, 32 Dorney, 33 Stockumer Bruch, 34 Wilhelmshöhe * Annen: 41 Tiefendorf, 42 Wullen, 43 Annen-Mitte-Nord, 44 Annen-Mitte-Süd, 45 Kohlensiepen, 46 Wartenberg, 47 Gedern * Rüdinghausen: 51 Industriegebiet-Ost, 52 Rüdinghausen-Mitte, 53 Buchholz, 54 Schnee * Bommern: 61 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schwerte
Schwerte (; Westphalian: ''Schweierte'') is a town in the district of Unna, in North Rhine-Westphalia, Germany. Geography Schwerte is situated in the Ruhr valley, at the south-east border of the Ruhr Area. South of Schwerte begins the mountainous Sauerland region. Division of the town After the local government reforms of 1975 Schwerte consists of the following districts: * Schwerte * Holzen * Westhofen * Ergste * Geisecke * Villigst * Wandhofen History Schwerte received civic rights in the 12th century. The railway facility in the eastern district of Schwerte became a branch of the Buchenwald concentration camp in April 1944. The camp had 445 prisoners in August and 670 in November 1944. The number of escapees was comparatively high; in November 1944 48 prisoners escaped. The camp in Schwerte was disbanded in December 1944 and the remaining prisoners were brought back to Buchenwald. Main sights *The Romanesque church of St. Victor has a carved altar of 1523, and st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holzwickede
Holzwickede () is a municipality in the district of Unna (district), Unna in North Rhine-Westphalia, Germany. It is twinned with Weymouth, England, Weymouth, Louviers and Colditz. Mayors *1969–1975: Josef Wortmann *1975–1989: Heinrich Schürhoff *1989–1999: Margret Mader *1999–2015: Jenz Rother * since 2015: Ulrike Drossel People from Holzwickede * Agnes von der Vierbecke ( 1341-1378), commemorated at Dortmund's Pepper Pot Festival * Julius Bergmann (1839-1904), philosopher * Hermann Mandel (1882-1946), theologian * Hermann Strathmann (1882-1966), theologian and politician * Nils Mönkemeyer (born 1978), violist and academic teacher References Unna (district) {{Unna-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unna
Unna () is a city of around 59,000 people in North Rhine-Westphalia, Germany, the seat of the Unna (district), Unna district. The newly refurbished Unna station has trains to all major cities in North Rhine Westphalia including Dortmund, Köln Hauptbahnhof, Cologne, Münster Hauptbahnhof, Münster, Hamm (Westfalen) station, Hamm, Düsseldorf and Wuppertal Hauptbahnhof, Wuppertal. There is also the Regional-Express 7 (Rhein-Münsterland-Express), which runs from Rheine station, Rheine via Cologne to Krefeld Hauptbahnhof, Krefeld. Geography Unna is situated on an ancient salt-trading route, the Hellweg, Westphalian Hellweg. Trade on this route and during the period of the Hanseatic League came from as far as London. The city is located at the eastern extremity of the Ruhr, Ruhr district, about east of the centre of Dortmund. Unna also serves as a dormitory city, being home to many commuters who work in Dortmund and other nearby cities. Local dialects of German include Westphalian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fröndenberg
Fröndenberg (; Westphalian: ''Frönnenbiärg'') is a town in the district of Unna, in North Rhine-Westphalia, Germany. Geography Fröndenberg is situated in the Ruhr valley, approx. 10 km south-east of the district capital Unna, near the Hönne. Neighbouring places * Unna * Wickede * Menden * Schwerte * Holzwickede History The city as such is relatively new, it grew out of the reorganization in 1902 whereby the former independent villages Stift, Westick and village Froendenberg melted into the bigger village community of Fröndenberg. It obtained city status in 1952. The oldest record of the name ` Frundeberg` is the papal document by Coelestin III from 1197. The present day administrative infrastructure goes back to 1968 when the villages Altendorf, Ardey, Bausenhagen, Dellwig, Frohnhausen, Frömern, Langschede, Neimen, Ostbüren, Stentrop, Strickherdicke, the town of Warmen and the town of Fröndenberg were merged into one administrative unit. In 1969 the vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydropower
Hydropower (from Ancient Greek -, "water"), also known as water power or water energy, is the use of falling or fast-running water to Electricity generation, produce electricity or to power machines. This is achieved by energy transformation, converting the Potential energy, gravitational potential or kinetic energy of a water source to produce power. Hydropower is a method of sustainable energy production. Hydropower is now used principally for Hydroelectricity, hydroelectric power generation, and is also applied as one half of an energy storage system known as pumped-storage hydroelectricity. Hydropower is an attractive alternative to fossil fuels as it does not directly produce Carbon dioxide in Earth's atmosphere, carbon dioxide or other Air pollution, atmospheric pollutants and it provides a relatively consistent source of power. Nonetheless, it has economic, sociological, and environmental downsides and requires a sufficiently energetic source of water, such as a river or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pumped-storage Power Station
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. A PSH system stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power. Pumped-storage hydroelectricity allows energy from intermittent sources (such as solar, wind, and other renewables) or excess electricity from continuous base-load sources (such as coal or nuclear) to be saved for periods of higher demand. The reservoirs used with pumped storage can be quite small, when contrasted with the lakes of conventional hydroelectric plants of similar power capacity, and generating periods are often less than half a day. The round-trip efficie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
