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Oder Dam
The Oder Dam (german: Odertalsperre) is a dam in the Harz mountains of Germany. It lies above Bad Lauterberg in the district of Göttingen in Lower Saxony and impounds the river Oder. The dam went into service in 1934 after taking 3 years to build. The owner and operator of the Oder Dam is the ''Harzwasserwerke''. Purposes The reservoir serves the following purposes: * Flood protection * Low water regulation * Power generation These functions sometimes create conflicting demands. For flood protection, the reservoir should be as empty as possible; for low water regulation, it is desirable that the reservoir is as full as possible. Accordingly, there are for the water economy an operating plan that is dependent on the time of year and the expected water quantities. e.g. snow meltwaters at the end of winter, droughts in summer. Dam The actual barrage is an embankment dam made of rubble (crushed stone) with a central concrete core and a grout curtain of clay. The concrete wall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Söse Dam
The Söse Dam is a dam in the Lower Saxon part of the Harz mountains near Osterode in the German state of Lower Saxony. It was the first modern dam and reservoir complex (German: ''Talsperre'') to be built in the Harz and was constructed by the ''Harzwasserwerke'' between 1928 and 1931. It is used for flood prevention, electricity generation, supplying drinking water and for raising water levels during times of low water. The construction of the dam cost 14.7 million Reichsmarks at the time. The ''Harzwasserwerke'' still operate the dam today. In 1933 construction began on a long-distance water pipe from the Söse reservoir, whose northern branch goes as far as Bremen. Today it mainly supplies towns and communities in the Hildesheim and Hanover areas. Since 1980 the town of Göttingen has also been supplied with drinking water from the reservoir. Main dam The main barrier is an earth-fill dam with a central concrete core and clay sealing. The hydro-electric power station, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Dams In The Harz
In the Harz mountains, there is a higher than average number of dams with their associated reservoirs. The reason is that the Harz is one of the regions with the heaviest rainfall in Germany and so its water power was utilised very early on. The first dam (on the Upper Harz Ponds) was built to drive water-powered pumps and stamp mills used in the mines. At present, the Harz reservoirs provide hydroelectricity, drinking water and flood protection particularly when the snows melt in spring. The following is a list of dams in the Harz: * Ecker Dam which impounds the waters of the Ecker * Grane Dam which impounds the waters of the Grane * Hassel Auxiliary Dam which impounds the waters of the Hassel, is part of the Rappbode Dam system * Innerste Dam which impounds the waters of the Innerste * Kelbra Dam which impounds the waters of the Helme * Königshütte Dam impounds the waters of both the Warme and Kalte Bode, and is part of the Rappbode Dam system * Mandelholz Dam (fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harz Odertalsperre
The Harz () is a Mittelgebirge, highland area in northern Germany. It has the highest elevations for that region, and its rugged terrain extends across parts of Lower Saxony, Saxony-Anhalt, and Thuringia. The name ''Harz'' derives from the Middle High German word ''Hardt'' or ''Hart'' (hill forest). The name ''Hercynia'' derives from a Celtic name and could refer to Hercynian Forest, other mountain forests, but has also been applied to the Rhenohercynian zone, geology of the Harz. The Brocken is the highest summit in the Harz with an elevation of above Normalnull, sea level. The Wurmberg (Harz), Wurmberg () is the highest peak located entirely within the state of Lower Saxony. Geography Location and extent The Harz has a length of , stretching from the town of Seesen in the northwest to Eisleben in the east, and a width of . It occupies an area of , and is divided into the Upper Harz (''Oberharz'') in the northwest, which is up to 800 m high, apart from the 1,100 m high Bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odertalsperre Winter
The Oder Dam (german: Odertalsperre) is a dam in the Harz mountains of Germany. It lies above Bad Lauterberg in the district of Göttingen in Lower Saxony and impounds the river Oder. The dam went into service in 1934 after taking 3 years to build. The owner and operator of the Oder Dam is the ''Harzwasserwerke''. Purposes The reservoir serves the following purposes: * Flood protection * Low water regulation * Power generation These functions sometimes create conflicting demands. For flood protection, the reservoir should be as empty as possible; for low water regulation, it is desirable that the reservoir is as full as possible. Accordingly, there are for the water economy an operating plan that is dependent on the time of year and the expected water quantities. e.g. snow meltwaters at the end of winter, droughts in summer. Dam The actual barrage is an embankment dam made of rubble (crushed stone) with a central concrete core and a grout curtain of clay. The concrete wall h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campsite
A campsite, also known as a campground or camping pitch, is a place used for overnight stay in an outdoor area. In British English, a ''campsite'' is an area, usually divided into a number of pitches, where people can camp overnight using tents, campervans or caravans; this British English use of the word is synonymous with the US English expression ''campground''. In American English, the term ''campsite'' generally means an area where an individual, family, group, or military unit can pitch a tent or park a camper; a campground may contain many campsites. There are two types of campsites: an impromptu area (as one might decide to stop while backpacking or hiking, or simply adjacent to a road through the wilderness), and a designated area with various facilities. Campgrounds The term ''camp'' comes from the Latin word ''campus'', meaning "field". Therefore, a campground consists typically of open pieces of ground where a camper can pitch a tent or park a camper. More ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surfing
Surfing is a surface water sport in which an individual, a surfer (or two in tandem surfing), uses a board to ride on the forward section, or face, of a moving wave of water, which usually carries the surfer towards the shore. Waves suitable for surfing are primarily found on ocean shores, but can also be found in standing waves in the open ocean, in lakes, in rivers in the form of a tidal bore, or in wave pools. The term ''surfing'' refers to a person riding a wave using a board, regardless of the stance. There are several types of boards. The Moche of Peru would often surf on reed craft, while the native peoples of the Pacific surfed waves on alaia, paipo, and other such water craft. Ancient cultures often surfed on their belly and knees, while the modern-day definition of surfing most often refers to a surfer riding a wave standing on a surfboard; this is also referred to as stand-up surfing. Another prominent form of surfing is body boarding, where a surfer rides th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailing
Sailing employs the wind—acting on sails, wingsails or kites—to propel a craft on the surface of the ''water'' (sailing ship, sailboat, raft, windsurfer, or kitesurfer), on ''ice'' (iceboat) or on ''land'' (land yacht) over a chosen course, which is often part of a larger plan of navigation. From prehistory until the second half of the 19th century, sailing craft were the primary means of maritime trade and transportation; exploration across the seas and oceans was reliant on sail for anything other than the shortest distances. Naval power in this period used sail to varying degrees depending on the current technology, culminating in the gun-armed sailing warships of the Age of Sail. Sail was slowly replaced by steam as the method of propulsion for ships over the latter part of the 19th century – seeing a gradual improvement in the technology of steam through a number of stepwise developments. Steam allowed scheduled services that ran at higher average speeds than sai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angling
Angling is a fishing technique that uses a fish hook or "angle" (from Old English ''angol'') attached to a fishing line to tether individual fish in the mouth. The fishing line is usually manipulated via a fishing rod, although rodless techniques such as handlining and longlining also exist. Modern angling rods are usually fitted with a reel that functions as a cranking device for storing, retrieving and releasing out the line, although Tenkara fishing and cane pole fishing are two rod-angling methods that do not use any reel. The hook itself can be additionally weighted with a dense tackle called a sinker, and is typically dressed with an appetizing bait to attract the fish and enticing it into swallowing the hook, but sometimes an inedible fake bait with multiple attached hooks (known as a lure) is used instead of a single hook with edible bait. A bite indicator, such as a float or a quiver tip, is often used to relay underwater status of the hook to the surface. W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watersports
Water sports or aquatic sports are sport activities conducted on waterbodies, and can be categorized according to the degree of immersion by the participants. On the water * Boat racing, the use of powerboats to participate in races * Boating, the use of boats for personal recreation * Cable skiing, similar to wake boarding but with cables for artificial maneuvering * Canoe polo combines boating and ball handling skills with a contact team game, where tactics and positional play are as important as the speed and fitness of the individual athletes. * Canoeing is an activity which involves paddling a canoe with a single-bladed paddle. Most present-day canoeing is done as or as a part of a sport or recreational activity. * Dragon boat racing, teams of 20 paddlers racing the ancient dragon boat * Fishing, the recreation and sport of catching fish * Flyboard, a brand of hydroflighting device which supplies propulsion to drive the Flyboard into the air to perform a sport known a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Turbine
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency. The process of arriving at the modern Francis runner design took from 1848 to approximately 1920. It became known as the Francis turbine around 1920, being named after British-American engineer James B. Francis who in 1848 created a new turbine design. Francis turbines are primarily used for producing electricity. The power output of the electric generators generally ranges from just a few kilowatts up to 1000 MW, though mini-hydro installations may be lower. The best performance is seen when the head height is between . Penstock diameters are between . The speeds of different turbine units range from 70 to 1000 rpm. A wicket gate around the outside of the turbine's rotating runner controls the rate of water flow through the turbine fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
