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Doris Mooltsje, Oudega
Doris Mooltsje is a drainage mill near the village of Oudega, Friesland, Netherlands. It is a hollow post windmill of the type called ''spinnenkop'' by the Dutch. The mill is listed as a Rijksmonument, number 527647 and has been restored to working order in 1998. History An inscription found on the substructure dates the mill to before 1790, making it one of the oldest still existing drainage mills in Friesland. It was named ''Doris Mooltsje'' after the last owner, Doris Hoekstra. In 1934 the windmill was partly dismantled, only the substructure was kept to house a pumping station. A re-allotment project made it superfluous and the remnants of the mill were to be torn down. ''Stichting Doris Mooltsje'' was founded in 1992 in an attempt to save and restore the windmill. The restoration project encountered a setback when the provincial government refused to put the mill on the provincial list of monuments, thereby creating difficulties in obtaining the necessary funds. Much work wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windmill Sail
Windmills are powered by their sails. Sails are found in different forms, from primitive common sails to the advanced patent sails. Jib sails The jib sail is found in Mediterranean countries and consists of a simple triangle of cloth wound round a spar. The mill must be stopped in order to adjust the reefing of the sail. Though rare in the UK, at least two windmills are known to have had jib sails (St Mary's, Isle of Scilly and Cann Mills, Melbury Abbas). Image:Windmill Antimahia Kos.jpg, Jib sails Image:Sobreiro.jpg, More fully spread Image:Spanish Mill, St Mary's.jpg, St Mary's, Isles of Scilly File:Cann Mill, Melbury Abbas.jpg, Cann Mills, Melbury Abbas Common sails The common sail is the simplest form of sail. In medieval mills, the sailcloth was wound in and out of a ladder-type arrangement of sails. Medieval sails could be constructed with or without outer sailbars. Post-medieval mill sails have a lattice framework over which the sailcloth is spread. There are v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archimedes' Screw
The Archimedes' screw, also known as the Archimedean screw, hydrodynamic screw, water screw or Egyptian screw, is one of the earliest documented hydraulic machines. It was so-named after the Greek mathematician Archimedes who first described it around 234 BC, although the device had been developed in Egypt earlier in the century. It is a reversible hydraulic machine that can be operated both as a pump or a power generator. As a machine used for lifting water from a low-lying body of water into irrigation ditches, water is lifted by turning a screw-shaped surface inside a pipe. In the modern world, Archimedes screw pumps are widely used in wastewater treatment plants and for dewatering low-lying regions. Run in reverse, Archimedes screw turbines act as a new form of small hydroelectric powerplant that can be applied even in low head sites. Such generators operate in a wide range of flows (0.01 m^3/s to 14.5 m^3/s) and heads (0.1 m to 10 m), including low heads and moderate flow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oudega, Súdwest-Fryslân
Oudega () is a village in Súdwest-Fryslân in the province of Friesland, the Netherlands. It had a population of around 730 in January 2017. It is often called ''Oudega W'' to avoid confusion with the other villages with the same name, with the ''W'' referring to the former municipally Wymbritseradiel. The location of the village on the banks of the lake ''Aldegeaster Brekken'' makes it a popular destination for boating, windsurfing and sailing. The village church and the windmill Doris Mooltsje are both Rijksmonument. History The village was first mentioned in 1245 as Aldakerke, and means "old neighbourhood". Oudega developed as a canal village in the middle ages. The village used to be surrounded by lakes and pools. The Dutch Reformed church was built in 1755 partially on the foundations of its medieval predecessor. It was enlarged around 1870 and a tower was added. The polder mill Doris Mooltsje was built before 1800. In 1935, the top was removed and a pumping station was i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friesland
Friesland ( ; ; official ), historically and traditionally known as Frisia (), named after the Frisians, is a Provinces of the Netherlands, province of the Netherlands located in the country's northern part. It is situated west of Groningen (province), Groningen, northwest of Drenthe and Overijssel, north of Flevoland, northeast of North Holland, and south of the Wadden Sea. As of January 2023, the province had a population of about 660,000, and a total area of . The province is divided into 18 municipalities. The Capital city, capital and seat of the provincial government is the city of Leeuwarden (West Frisian: ''Ljouwert'', Liwwaddes: ''Liwwadde''), a city with 123,107 inhabitants. Other large municipalities in Friesland are Sneek (pop. 33,512), Heerenveen (pop. 50,257), and Smallingerland (includes town of Drachten, pop. 55,938). Since 2017, Arno Brok is the King's Commissioner in the province. A coalition of the Christian Democratic Appeal, the People's Party for Freedom a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netherlands
, Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Netherlands. The Netherlands consists of Provinces of the Netherlands, twelve provinces; it borders Germany to the east and Belgium to the south, with a North Sea coastline to the north and west. It shares Maritime boundary, maritime borders with the United Kingdom, Germany, and Belgium. The official language is Dutch language, Dutch, with West Frisian language, West Frisian as a secondary official language in the province of Friesland. Dutch, English_language, English, and Papiamento are official in the Caribbean Netherlands, Caribbean territories. The people who are from the Netherlands is often referred to as Dutch people, Dutch Ethnicity, Ethnicity group, not to be confused by the language. ''Netherlands'' literally means "lower countries" i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rijksmonument
A (, ) 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 (national service for cultural heritage). 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 f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Vlijt, Koudum
De Vlijt () or Molen 't Op is a post mill in Koudum, Friesland, Netherlands which was built in 1986 and is working in working order. The mill is listed as a Rijksmonument, number 34081. History The first mention of a mill on this site was its appearance on a map of Koudum in 1718. Enter 3705 in DB Nr field, then click on linked page In 1823, a rye, barley and mustard mill was advertised for sale. The mill had sails with a span of and a stage at a height of . It was valued at over ƒ5,500 The mill was owned by Heerke Reinders Heerkens and was sold to Hendrik Gerrits van der Meulen. In 1830, the mill is shown with an octagonal plan, which may indicate that it was a smock mill. In 1832, it was sold to Peter Tjebbes of Stavoren. He died in 1833 and the mill passed to his widow Durkje Reinders Visser. She sold the mill in 1839 for ƒ6,064 to Harman van der Sluis Meines of Bakhuizen. In 1859, the mill was owned by P L van der Wal, who advertised for an miller's assistant in the '' Lee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roekmolen, Goëngahuizen
Roekmole is a hollow post mill in nature reserve ''It Eilân'' in Goëngahuizen, Friesland, Netherlands. It was moved there from polder ''Krieke'' near Aldeboarn and has been restored to working order. The mill is listed as a Rijksmonument, number 35972. (Click on "Technische gegevens" to view.) History The earliest record of a mill on the previous site was on a map published by W Eekhorn in 1849. The current mill was built in 1896 and drained polder ''Krieke''. The mill is recorded as having been restored in 1960 and again in 1976, however it spent most of the 1980s and 1990s without sails. In 2009 it was moved to its current location and restoration to working order was finished in 2011. The previous nameless mill was renamed Roekmolen. Description The ''Roekmolen'' is what the Dutch describe as a "spinnenkopmolen". It is a hollow post mill with a single storey square roundhouse. The roundhouse and body of the mill are covered with weatherboards. These are horizontal on the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trestle (mill)
The trestle of a post mill is the arrangement of the ''main post'', ''crosstrees'' and ''quarterbars'' that form the substructure of this type of windmill. It may or may not be surrounded by a ''Roundhouse (windmill), roundhouse''. Post mills without a roundhouse are known as ''open trestle post mills''. A trestle mill is a variety of smock mill, usually without weatherboards, formerly used for drainage in the Norfolk Broads. Examples can be found at Horning, Ludham and St Olaves. A well preserved example of a timber crosstree, from the trestle of a medieval windmill, was excavated by archaeologists at Humberstone_and_Hamilton, Humberstone, near Leicester, in 2007. References Bibliography * * * * {{Renewable-energy-stub Post mills Smock mills ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
