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Dammgraben
The Dyke Ditch (german: Dammgraben) is the longest artificial ditch in the Upper Harz in central Germany. Its purpose was to collect surface runoff for the operation of the Upper Harz mining industry from precipitation-heavy regions a long way away (particularly from the Bruchberg and parts of the Brocken massif). It was laid in 1732 and continually extended eastwards until 1827. Its original length was about 25 km; this was successively shortened by water tunnels between 1820 and 1861 to around 19 km. It is a central component of the Upper Harz Water Regale. Its takes its name from the Sperberhai Dyke which is, in fact, an embankment on top of which the Dyke Ditch runs in an aqueduct in order to cross a depression. History The history of the Dyke Ditch was initially closely related to the history of the Sperberhai Dyke. Not until the completion of the dyke in 1734 could large watercourses east of Clausthal be tapped into: the streams of the Großer and Kleiner G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altenau
Altenau () is a town and a former municipality in the district of Goslar, in Lower Saxony, Germany. Since 1 January 2015 it is part of the town Clausthal-Zellerfeld. It is situated in the middle of the Harz mountains, between Clausthal-Zellerfeld and the Brocken. It was part of the former ''Samtgemeinde'' ("collective municipality") Oberharz. Geography The place is centrally located in the Upper Harz. Clausthal-Zellerfeld in the west is about ten kilometers, Goslar in the north about 15 km and Osterode am Harz in the southwest about 25 km away. To the east of the mountain town, twelve kilometers away, is the summit of the Brocken, which can be seen from many places in Altenau. The Oker flows through Altenau from south to north . Other streams flow into the Oker in the urban area and give Altenau a townscape with numerous valleys and hilltops. The area is heavily forested. Districts The Torfhaus settlement about ten kilometers away belongs to Altenau . This is at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Harz Ditches
The Upper Harz Ditches (german: Oberharzer Gräben, ) are hillside ditches, running roughly parallel to the contour lines, that were laid out in the Upper Harz in Germany from the 16th to the 19th centuries to supply water power to the silver mines there. They are an important component of the Upper Harz Water Regale, a historical water system that is now a cultural monument. Design The ditches consist of a trench and an embankment (''Grabenbrust'') next to it, made of spoil piled up when the ditch was excavated. The embankments are frequently protected from erosion by a dry stone wall. In most cases, they also act as inspection paths for the ditch keepers (''Grabenwärter'') and, today, as public footpaths. The ditches are only inclined at about 1–2 ‰ (i.e. about 1 to 2 millimetres per metre). As a result, they run almost parallel to the contour lines of the terrain. As protection against seepage the embankment and bed of the ditch are usually sealed with grass sods o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kunstgraben
A ''Kunstgraben'' is a type of man-made water channel that was once used by mines to drive the water wheels needed for power, mine drainage and a host of other purposes. The term is German (plural: ''Kunstgräben''). Similar ditches supplying water mills in England are called leats. Background Until the invention of the steam engine, water power was the main source of energy utilised by the various mechanical engines employed in the mining industry, such as water wheels, reversible water wheels, water-column engines or water turbines. To enable mine workings to be driven ever deeper, more and more power was needed. The water available in the vicinity of the pits was insufficient for that purpose and springs frequently dried up as a result of be diverted for use in the mines. As a result, the water needed for the mine workings sometimes had to be transported over long distances. Usage The aim was to have the greatest possible height difference at the site of the water pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harzer Hexenstieg
The Harz Witches' Trail (german: Harzer Hexenstieg) is a footpath, just under 100 km long, in Germany that runs from Osterode through the Harz mountains and over its highest peak, the Brocken, to Thale. It is a project by the Harz Transport Association and Harz Club and is part of the system of trails known as the ''Harzer Wandernadel''. Footpath The trail runs from Osterode via Lerbach to Buntenbock, which is in the borough of Clausthal-Zellerfeld and surrounded by the Upper Harz Ponds. The ponds are part of a cultural monument to the former mining industry of the Harz, known as the Upper Harz Water Regale and to which the Dyke Ditch belongs. Following the Dyke Ditch, the path passes the Dam House as well as the Grabenhaus Rose which belongs to the town of Altenau. Passing the Förster Ludwig Platz and Naben Valley Waterfall the path reaches Torfhaus via the ''Steile Wand'' ("Steep Wall"). In Torfhaus the Witches' Trail splits into two routes. The main route runs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thale
Thale () is a town in the Harz district in Saxony-Anhalt in central Germany. Located at the steep northeastern rim of the Harz mountain range, it is known for the scenic Bode Gorge stretching above the town centre. Geography The town is situated on the river Bode, approximately west of Quedlinburg. Served by Transdev Sachsen-Anhalt trains, Thale Hauptbahnhof is the terminus of the Magdeburg–Thale railway line. The town has access to the Bundesstraße 6n highway. Divisions The town Thale consists of Thale proper and the following ''Ortschaften'' or municipal divisions:Hauptsatzung der Stadt Thale December 2014. * * [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clausthal-Zellerfeld
Clausthal-Zellerfeld is a town in Lower Saxony, Germany. It is located in the southwestern part of the Harz mountains. Its population is approximately 15,000. The City is the location of the Clausthal University of Technology. The health resort is located in the Upper Harz at an altitude between 390 and 821 m above sea level. Geography Clausthal-Zellerfeld is located on the Upper Harz Plateau. The environment is less mountainous compared to most of the Harz, but only hilly. As a result, the immediate surrounding area is less wooded and there are more meadow areas. Scattered in and around Clausthal-Zellerfeld are numerous dams and streams of the Upper Harz Water Regale. The depression between Clausthal and Zellerfeld marks a natural "borderline". Southwest extends the "Small Clausthal valley". City districts * Altenau-Schulenberg im Oberharz (since 2015) * Buntenbock (since 1972) * Clausthal-Zellerfeld * Wildemann (since 2015) History Clausthal-Zellerfeld originally c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osterode Am Harz
Osterode am Harz, often simply called Osterode (; Eastphalian dialect, Eastphalian: ''Ostroe''), is a town in south-eastern Lower Saxony, Niedersachsen on the south-western edge of the Harz mountains. It was the seat of government of the Landkreis, district of Osterode (district), Osterode. Osterode is located on the German Timber-Frame Road. Geography Water The Söse river flows through the town from the Söse Dam lake about 5 km upstream. The dam was built in 1931 and has a capacity of 25.5 million m³. The Harzwasserwerke water company pipes drinking water as far away as Bremen. Districts The following districts (mainly surrounding villages) are part of the borough of Osterode am Harz, with populations in brackets (as of 1 July 2012): * Dorste (1,650) * Düna (140) * Förste (2,000) * Freiheit (2,100) * Kazenstein (1,200) * Lasfelde (1,300) * Lerbach, Osterode am Harz, Lerbach (1,000) * Marke (150) * Nienstedt am Harz (440) * Osterode am Harz (11,500) * Petershü ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volumetric Flow Rate
In physics and engineering, in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, or volume velocity) is the volume of fluid which passes per unit time; usually it is represented by the symbol (sometimes ). It contrasts with mass flow rate, which is the other main type of fluid flow rate. In most contexts a mention of ''rate of fluid flow'' is likely to refer to the volumetric rate. In hydrometry, the volumetric flow rate is known as '' discharge''. Volumetric flow rate should not be confused with volumetric flux, as defined by Darcy's law and represented by the symbol , with units of m3/(m2·s), that is, m·s−1. The integration of a flux over an area gives the volumetric flow rate. The SI unit is cubic metres per second (m3/s). Another unit used is standard cubic centimetres per minute (SCCM). In US customary units and imperial units, volumetric flow rate is often expressed as cubic feet per second (ft3/s) or gallons per minute (either ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage Divide
A drainage divide, water divide, ridgeline, watershed, water parting or height of land is elevated terrain that separates neighboring drainage basins. On rugged land, the divide lies along topographical ridges, and may be in the form of a single range of hills or mountains, known as a dividing range. On flat terrain, especially where the ground is marshy, the divide may be difficult to discern. A triple divide is a point, often a summit, where three drainage basins meet. A ''valley floor divide'' is a low drainage divide that runs across a valley, sometimes created by deposition or stream capture. Major divides separating rivers that drain to different seas or oceans are continental divides. The term ''height of land'' is used in Canada and the United States to refer to a drainage divide. It is frequently used in border descriptions, which are set according to the "doctrine of natural boundaries". In glaciated areas it often refers to a low point on a divide where it is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oker
The Oker is a river in Lower Saxony, Germany, that has historically formed an important political boundary. It is a left tributary of the River Aller, in length and runs in a generally northerly direction. Origin and meaning of the name The river's name was recorded around 830 as ''Obacra'' and, later, as ''Ovokare'' und ''Ovakara''.H. Blume: ''Oker, Schunter, Wabe.'' In: ''Braunschweigisches Jahrbuch für Landesgeschichte'', vol. 86, 2005, p. 14 sqq. The origin of the name is derived from the roots ''ov-'' and ''-akara'' meaning “upper” (cf. New High German ''ober-'') and “onward rushing” (rendered in German as “Vorwärtsdrängende”) as distinct from its tributary, the Ecker, whose name means only “onward rushing”. Course The Oker rises at about 910 metres in the Harz National Park in a boggy area on the Bruchberg in the Harz mountains of central Germany. This early section is known as the ''Große Oker'' ("Great Oker") and it is impounded below A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radau (river)
Radau is a river of Lower Saxony, Germany. It is right tributary of the Oker. It rises in the Harz range, leaves the mountains at Bad Harzburg, and discharges into the Oker near Vienenburg. Course The river rises at around in the Upper Harz region, in a bog known as ''Torfhausmoor'' or ''Radaubornmoor''. The raised bog stretches from Torfhaus, a hamlet belonging to the Clausthal-Zellerfeld municipality, to the Brocken massif in the east. The historic peat cutting area today is part of the Harz National Park and can be reached via the scenic trail Goethe Way. From its source, the mountain stream flows northwards through the Radau valley that it has carved out and feeds the high waterfall ''Radauwasserfall'' south of Bad Harzburg, immediately next to the Bundesstraße 4 federal highway. The artificial waterfall was constructed as a tourist attraction in 1859 on behalf of the Duchy of Brunswick State Railway company, which had operated the Brunswick–Bad Harzburg railway l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecker
The Ecker is a , right-hand, southeast tributary of the Oker which runs mainly through the Harz mountains in the German states of Saxony-Anhalt and Lower Saxony. Course From its source to Abbenrode the Ecker is a border river, today running between the federal states of Saxony-Anhalt and Lower Saxony. Prior to German reunification this was also the border between the German Democratic Republic in the east and Federal Republic of Germany to the west. The Ecker rises around southwest of the Brocken at at the ''Eckersprung''. Until the border was reopened it was the end of the Goethe Way (''Goetheweg'') from Torfhaus. Today there is a large picnic area with toilets at the ''Eckersprung''. Along a steep, rocky bed, the Ecker initially flows to the Ecker Dam, then through the deeply incised Ecker valley towards the north-northeast, where it passes the Ahlsburg, and then leaves the Harz. The upper Ecker valley is part of the Harz National Park. Only the site of the paper facto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
