Stelling Van Amsterdam
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Stelling Van Amsterdam
The UNESCO World Heritage Site known as the Defence Line of Amsterdam (in Dutch named ''Stelling van Amsterdam'', ) is a ring of fortifications around Amsterdam. It has 42 forts that are from the centre and lowlands, which can easily be flooded in time of war. The flooding was designed to give a depth of about , too little for boats to cross. Any buildings within of the line had to be made of wood so that they could be burnt and the obstruction removed. The Stelling van Amsterdam was constructed between 1880 and 1920. The invention of the aeroplane and tank made the forts obsolete almost as soon as they were finished. Many of the forts now are under the control of both the town councils and the nature department. They may be visited by the public, and admission is free on Monuments Day, the second Saturday in September. Function The Stelling van Amsterdam was primarily a defensive water line (Dutch: ''waterlinie''). In the event of an enemy attack, large tracts of land aroun ...
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North Holland
North Holland ( nl, Noord-Holland, ) is a province of the Netherlands in the northwestern part of the country. It is located on the North Sea, north of South Holland and Utrecht, and west of Friesland and Flevoland. In November 2019, it had a population of 2,877,909 and a total area of , of which is water. From the 9th to the 16th century, the area was an integral part of the County of Holland. During this period West Friesland was incorporated. In the 17th and 18th century, the area was part of the province of Holland and commonly known as the Noorderkwartier (English: "Northern Quarter"). In 1840, the province of Holland was split into the two provinces of North Holland and South Holland. In 1855, the Haarlemmermeer was drained and turned into land. The provincial capital is Haarlem (pop. 161,265). The province's largest city and also the largest city in the Netherlands is the Dutch capital Amsterdam, with a population of 862,965 as of November 2019. The King's Commissi ...
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Great Power
A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power influence, which may cause middle or small powers to consider the great powers' opinions before taking actions of their own. International relations theorists have posited that great power status can be characterized into power capabilities, spatial aspects, and status dimensions. While some nations are widely considered to be great powers, there is considerable debate on the exact criteria of great power status. Historically, the status of great powers has been formally recognized in organizations such as the Congress of ViennaDanilovic, Vesna. "When the Stakes Are High – Deterrence and Conflict among Major Powers", University of Michigan Press (2002), pp 27, 225–22(PDF chapter downloads)
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Fort Along The Drecht
A fortification is a military construction or building designed for the defense of territories in warfare, and is also used to establish rule in a region during peacetime. The term is derived from Latin ''fortis'' ("strong") and ''facere'' ("to make"). From very early history to modern times, defensive walls have often been necessary for cities to survive in an ever-changing world of invasion and conquest. Some settlements in the Indus Valley civilization were the first small cities to be fortified. In ancient Greece, large stone walls had been built in Mycenaean Greece, such as the ancient site of Mycenae (famous for the huge stone blocks of its 'cyclopean' walls). A Greek '' phrourion'' was a fortified collection of buildings used as a military garrison, and is the equivalent of the Roman castellum or English fortress. These constructions mainly served the purpose of a watch tower, to guard certain roads, passes, and borders. Though smaller than a real fortress, they acted ...
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Fort Near De Kwakel
The Fort bij De Kwakel is a fort that is part of the Stelling van Amsterdam. It's located in the village of De Kwakel The Kwakel is a village in the municipality of Uithoorn, North Holland, the Netherlands, near the border with South Holland. Having 3880 inhabitants in 2006, it's close to Kudelstaart and Aalsmeer Aalsmeer () is a municipality and a town in .... It's one of four forts that form the linie Kudelstaart - Uithoorn. To the west is fort bij Kudelstaart, to the east is fort aan de Drecht and fort bij Uithoorn. The fort was built in 1890. The main building consists of 18 rooms. The house of the person who occupied the fort when there were no troops present is also still there. Some of the other buildings have been converted into houses. Kwakel Kwakel {{Netherlands-struct-stub ...
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Fort Near Vijfhuizen
Fort Vijfhuizen is one of forty-two forts in the Defense Line of Amsterdam (Dutch: ''stelling van Amsterdam''), a World Heritage Site. It is located in the town of Vijfhuizen on the ''ringvaart'' which surrounds the Haarlemmermeer polder. The main fort is currently maintained by a charitable foundation called ''Kunstfort Vijfhuizen'' which leases space for twelve artist studios and a restaurant. The fort is situated on a hill surrounded by a moat and accessible during opening hours. It was built in 1889 and 1890 with sand taken from the excavations for a new sluice-gate complex in IJmuiden.Fort bij Vijfhuizen
on Stelling van Amsterdam website
On 3 May 1943 an American Ventura bomber crashed into the moat. S ...
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Fort Along Den Ham
The Fort along Den Ham is a fort that is part of the UNESCO World Heritage site of the Stelling van Amsterdam. It's located along the railroad from Uitgeest to Krommenie. The earthen walls date from 1896, the fort itself was finished in 1903. The fort was only used very briefly, during the First World War. External linksWebsite Stichting Fort aan den HamFort aan den Ham
Ham Ham is pork from a leg cut of pork, cut that has been food preservation, preserved by wet or dry Curing (food preservation), curing, with or without smoking (cooking ...
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Roelofarendsveen
Roelofarendsveen is a town in the west of the Netherlands. It is located in the municipality of Kaag en Braassem, South Holland, about 10 km east of Leiden. History The village was first mentioned in 1575 as "Roelifaerts Veen", and means "bog of Roelof Aertszoon" who was probably the peat concession holder. Roelofarendsveen is a road village which developed along the bank of the . Later it developed into a horticulture centre. The ''polder'' mill Googermolen was built in 1717. It might have been rebuilt in 1830s. It was definitely restored in 1839. In 1956, a pumping station was added, and the wind mill now operates on a voluntary basis. The Catholic St Petrus' Banden Church is an aisleless church with detached tower built between 1969 and 1970 as a replacement of the 1856 church. Roelofarendsveen was home to 1,205 people in 1840. After World War II, the town Roelofarendsveen and the village Oude Wetering have merged to form one built-up area. Gallery Image:Roelofarends ...
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Ringvaart
The Ringvaart (known in full as Ringvaart of the Haarlemmermeer Polder) is a canal in the province of North Holland, the Netherlands. The Ringvaart (Dutch meaning "ring canal") is a true circular canal surrounding the Haarlemmermeer polder and forms the boundary of the Haarlemmermeer municipality. Ringvaart is also the name of the dike bordering the canal. Construction of the canal began in 1839 as the first step to reclaim land from Haarlemmermeer (Dutch for Haarlem's Lake). Thousands of laborers dug a canal through the existing land, as much as possible closely following the lake's contour. But at three locations (Vijfhuizen, Lisserbroek, and Huigsloot), the Ringvaart was dug through peninsulas which thereafter became part of Haarlemmermeer. In 1845, the canal was completed and the lake could be drained, using the Ringvaart to drain the excess waters. The canal is 61 kilometres (38 mi) long, and 2.4 metres (8 ft) deep. It encloses an area of more than 1 ...
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A4 Motorway (Netherlands)
The A4 motorway, also called Rijksweg 4, is a motorway in the Netherlands running from Amsterdam southwards to the Belgian border near Zandvliet, north of the city of Antwerp. The A4 is divided into two sections; the first and longer section runs from Amsterdam to the A15 near the city of Rotterdam, while the second section starts near Heijningen, where the A29 and the A4 meet, going to the Belgian border. Between the A29 near the village of Klaaswaal, south of Rotterdam, and the interchange Sabina, where the A4-A29 meets the A59, the route is numbered A29. Three European routes run concurrently with this highway at some point, E19, E30, and E312. The highway is long. There are no authorized plans for the missing link between Pernis (south of Schiedam and west of Rotterdam) and the A29 near Klaaswaal, though right-of-way has been acquired for the future A29 interchange with the A4. Route description Amsterdam to Rotterdam The A4 begins in the province of North Holland i ...
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Polder
A polder () is a low-lying tract of land that forms an artificial hydrological entity, enclosed by embankments known as dikes. The three types of polder are: # Land reclaimed from a body of water, such as a lake or the seabed # Flood plains separated from the sea or river by a dike # Marshes separated from the surrounding water by a dike and subsequently drained; these are also known as ''koogs'', especially in Germany The ground level in drained marshes subsides over time. All polders will eventually be below the surrounding water level some or all of the time. Water enters the low-lying polder through infiltration and water pressure of groundwater, or rainfall, or transport of water by rivers and canals. This usually means that the polder has an excess of water, which is pumped out or drained by opening sluices at low tide. Care must be taken not to set the internal water level too low. Polder land made up of peat (former marshland) will sink in relation to its previous l ...
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Haarlemmermeer
Haarlemmermeer () is a municipality in the west of the Netherlands, in the province of North Holland. Haarlemmermeer is a polder, consisting of land reclaimed from water. The name Haarlemmermeer means ' Haarlem's lake', referring to the body of water from which the region was reclaimed in the 19th century. Haarlemmermeer's main town is Hoofddorp, which has a population of 76,660. Hoofddorp, along with the rapidly growing towns of Nieuw-Vennep and Badhoevedorp, are part of the Randstad agglomeration. The main international airport of the Netherlands, Schiphol, is located in Haarlemmermeer. History The original Haarlemmermeer lake is said to have been mostly a peat bog, a relic of a northern arm of the Rhine which passed through the district in Roman times. In 1531, the original Haarlemmermeer had an area of , and near it were three smaller lakes: the Leidsche Meer (Leiden Lake), the Spiering Meer, and the Oude Meer (Old Lake), with a combined area of about . The four lakes were ...
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Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ...
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