|
De Cornwerdermolen, Cornwerd
The Cornwerdermolen is a smock mill in Cornwerd, Friesland, Netherlands which has been restored to working order. The mill is listed as Rijksmonument number 39329. (Click on ''Technische gegevens'' to view.) History The ''Cornwerdermolen'' was built in 1907 by millwright J H Westra of Franeker. The mill originally drained two polders, each via a separate Archimedes' screw. Five windmills were put out of work by the construction of the ''Cornwerdermolen'' and were demolished. The smaller of the two screws was later removed. The mill was restored in 1969. it worked until 13 November 1972, when it lost two sails in a storm. Thereafter the work of the mill was done by an Archimedes' screw driven by a tractor. The tractor was later replaced by an electric motor An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windpump
A windpump is a type of windmill which is used for pumping water. Windpumps were used to pump water since at least the 9th century in what is now Afghanistan, Iran and Pakistan. The use of wind pumps became widespread across the Muslim world and later spread to China and Indian subcontinent, India. Windmills were later used extensively in Europe, particularly in the Netherlands and the East Anglia area of Great Britain, from the late Middle Ages onwards, to drain land for agricultural or building purposes. Simon Stevin's work in the ''waterstaet'' involved improvements to the sluices and spillways to control flooding. Windmills were already in use to pump the water out, but in ''Van de Molens'' (''On mills''), he suggested improvements, including the idea that the wheels should move slowly, and a better system for meshing of the gear teeth. These improvements increased the efficiency of the windmills used to pump water out of the polders by three times. He received a patent on h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rijksmonuments In Friesland
A rijksmonument (, ) is a national heritage site of the Netherlands, listed by the agency Rijksdienst voor het Cultureel Erfgoed (RCE) acting for the Dutch Ministry of Education, Culture and Science. At the end of February 2015, the Netherlands had 61,822 listed national heritage sites, of which approximately 1,500 are listed as archaeological sites. History and criteria Until 2012, a place had to be over 50 years old to be eligible for designation. This criterion expired on 1 January 2012. The current legislation governing the monuments is the ''Monumentenwet van 1988'' ("Monument Law of 1988"). The organization responsible for caring for the monuments, which used to be called ''Monumentenzorg'', was recently renamed, and is now called Rijksdienst voor het Cultureel Erfgoed. In June 2009, the Court of The Hague decided that individual purchasers of buildings that were listed as rijksmonuments would be exempt from paying transfer tax, effective from 1 May 2009. Previously t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smock Mills In The Netherlands , a shirt worn in Ghana
{{disambig ...
Smock may refer to one of the following: * Smock-frock, a coatlike outer garment, often worn to protect the clothes * Smocking, an embroidery technique in which the fabric is gathered, then embroidered with decorative stitches to hold the gathers in place * Chemise, a woman's undergarment * A smock mill, a windmill with a wooden tower, resembling the garment in appearance * A Ghanaian smock A Ghanaian smock is a plaid shirt that is similar to the dashiki, worn by both women and men in Ghana. It is the most popular traditional attire in Ghana. The smock is called Bingmaa in Dagbani language, Bun-nwↃ or Bana by Mamprusis, fugu i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windmills Completed In 1907
A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, specifically to mill grain (gristmills), but the term is also extended to windpumps, wind turbines, and other applications, in some parts of the English speaking world. The term wind engine is sometimes used to describe such devices. Windmills were used throughout the high medieval and early modern periods; the horizontal or panemone windmill first appeared in Persia during the 9th century, and the vertical windmill first appeared in northwestern Europe in the 12th century. Regarded as an icon of Dutch culture, there are approximately 1,000 windmills in the Netherlands today. Forerunners Wind-powered machines may have been known earlier, but there is no clear evidence of windmills before the 9th century. Hero of Alexandria (Heron) in first-century Roman Egypt described what appears to be a wind-driven wheel to power a machine.Dietrich Lohrmann, "Von der östlichen z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windmills In Friesland
A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, specifically to mill grain (gristmills), but the term is also extended to windpumps, wind turbines, and other applications, in some parts of the English speaking world. The term wind engine is sometimes used to describe such devices. Windmills were used throughout the high medieval and early modern periods; the horizontal or panemone windmill first appeared in Persia during the 9th century, and the vertical windmill first appeared in northwestern Europe in the 12th century. Regarded as an icon of Dutch culture, there are approximately 1,000 windmills in the Netherlands today. Forerunners Wind-powered machines may have been known earlier, but there is no clear evidence of windmills before the 9th century. Hero of Alexandria (Heron) in first-century Roman Egypt described what appears to be a wind-driven wheel to power a machine.Dietrich Lohrmann, "Von der östlichen z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groningen (province)
Groningen (; gos, Grunn; fry, Grinslân) is the northeasternmost province of the Netherlands. It borders on Friesland to the west, Drenthe to the south, the German state of Lower Saxony to the east, and the Wadden Sea to the north. As of February 2020, Groningen had a population of 586,309 and a total area of . Historically the area was at different times part of Frisia, the Frankish Empire, the Holy Roman Empire, and the Dutch Republic, the precursor state of the modern Netherlands. In the 14th century, the city of Groningen became a member of the Hanseatic League. The provincial capital and the largest city in the province is the city of Groningen (231,299 inhabitants). Since 2016, René Paas has been the King's Commissioner in the province. A coalition of GroenLinks, the Labour Party, ChristianUnion, People's Party for Freedom and Democracy, Democrats 66, and Christian Democratic Appeal forms the executive branch. The province is divided into 10 municipalities. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Motor
An electric motor is an Electric machine, electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a Electromagnetic coil, wire winding to generate force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy. Electric motors can be powered by direct current (DC) sources, such as from batteries, or rectifiers, or by alternating current (AC) sources, such as a power grid, Inverter (electrical), inverters or electrical generators. Electric motors may be classified by considerations such as power source type, construction, application and type of motion output. They can be powered by AC or DC, be Brushed motor, brushed or Brushless motor, brushless, single-phase, Two-phase electric power, two-p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractor
A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanize agricultural tasks, especially (and originally) tillage, and now many more. Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised. Etymology The word ''tractor'' was taken from Latin, being the agent noun of ''trahere'' "to pull". The first recorded use of the word meaning "an engine or vehicle for pulling wagons or plows" occurred in 1896, from the earlier term " traction motor" (1859). National variations In the UK, Ireland, Australia, India, Spain, Argentina, Slovenia, Serbia, Croatia, the Netherlands, and Germany, the word "tractor" u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franeker
Franeker (; fry, Frjentsjer) is one of the eleven historical cities of Friesland and capital of the municipality of Waadhoeke. It is located north of the Van Harinxmakanaal and about 20 km west of Leeuwarden. As of 1 January 2014, it had 12,781 inhabitants. The Eise Eisinga Planetarium, established in 1781, is located in the city. History Franeker was founded around 800 as a Carolingian stronghold. The name probably derives from ''Froon-acker'', meaning "land of the lord/king"; the oldest street in the city is still called Froonacker. Beginning around the 11th century, Franeker developed into the administrative center Westergoa. Franeker received city rights in 1374. In the 15th century, Albert, Duke of Saxony established himself in Franeker. The city appeared for a time to be growing into the primary city of Friesland, but was eventually overshadowed in this role by Leeuwarden. During the period of the Dutch Revolt, the town sided early on with William I. From 1585 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smock Mill
The smock mill is a type of windmill that consists of a sloping, horizontally weatherboarded, thatched, or shingled tower, usually with six or eight sides. It is topped with a roof or cap that rotates to bring the sails into the wind. This type of windmill got its name from its resemblance to smocks worn by farmers in an earlier period. Construction Smock mills differ from tower mills, which are usually cylindrical rather than hexagonal or octagonal, and built from brick or stone masonry instead of timber. The majority of smock mills are octagonal in plan, with a lesser number hexagonal in plan, such as Killick's Mill, Meopham. A very small number of smock mills were decagonal or dodecagonal in plan, an example of the latter being at Wicken, Cambridgeshire. Distribution Smock mills exist in Europe and particularly in England, where they were common, particularly in the county of Kent, where the tallest surviving smock mill in the United Kingdom, Union Mill, can be found a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
