A windmill is an engine powered by the energy of wind. It often refers to an engine contained in a large building as in traditional post mills, smock mills and tower mills. It also refers to small tower mounted wind engines used to pump water on farms and modern wind turbines for generating electricity. ==History== ===In Europe=== [[Image:Campo de Criptana Molinos de Viento 1.jpg|thumb|250px|Spain Windmills at La Mancha.]] In Europe, windmills have been used since the Middle Ages; regions famous for their windmills include the Netherlands and La Mancha, Spain. The windmills of La Mancha were made particularly famous by a scene in Cervantes' ''Don Quixote'' where the title character mistakes them for giants sent by an evil enchanter, giving rise to the phrase "tilting at windmills". Windmills were developed from the 12th century, apparently from technology gained by crusaders who came into contact with windmills in the Middle East. Persian Empiren sources indicate windmill use as early as the 7th century BC [http://www.catpress.com/bplanet9/eeolica.htm 1] [http://web.utk.edu/~persian/windmill.htm 2]. Common applications of windmills are grain Mill (grinding)ing, water pumping, threshing, and saw mills. Over the ages, windmills have evolved into more sophisticated and efficiency wind-powered water pumps and power generators. ===In the United States=== The development of the water-pumping windmill in the USA was the major factor in allowing the farming and ranching of vast areas of North America, which were otherwise devoid of readily accessible water. They contributed to the expansion of rail transport systems, throughout the world, by pumping water from wells to supply the needs of the steam locomotives of those early times. They are still used today for the same purpose in some areas of the world where a connection to electric power lines is not a realistic option. The multi-bladed wind turbine atop a lattice tower made of wood or steel was, for many years, a fixture of the landscape throughout rural America. These mills, made by a variety of manufacturers, featured a large number of blades so that they would turn slowly but with considerable torque in low winds and be self regulating in high winds. A tower-top gearbox and crankshaft converted the rotary motion into reciprocating strokes carried downward through a pole or rod to the pump cylinder below. In areas not prone to freezing weather, a pump jack (or standard) was frequently mounted at the top of the well in the center of the base off the tower. This was the connection between the windmill and the pump rod, which generally went through the drop pipe to the cylinder below. The pump jack provided a means for manual operation of the pump when the wind was not blowing. Some pump jacks provided a sealed connection, allowing water to be forced out under pressure allowing a tank at a higher elevation to provide water for a home and other uses, but many had a simple spout allowing water to flow away in a trough by gravity. The drop pipe and pump rod continued down deep into the well, terminating at the pump cylinder below the lowest likely groundwater level. A suction tube usually continued a short distance more. This arrangement allowed wells as deep as 1200 feet (370 m) to be constructed, though most were much more shallow. Windmills and related equipment are still manufactured and installed today on farms and ranches, usually in remote parts of the western United States where electric power is not readily available. The arrival of electricity in rural areas, brought by the Rural Electrification Administration (REA) in the 1930s through 1950s, contributed to the decline in the use of windmills in the US. Today, with increases in energy prices and the expense of replacing electric pumps, has led to an increase in the repair, restoration and installation of new windmills. ==See also== [[Image:Prokudin-Gorskii-06.jpg|thumb|250px|Windmills of Western Siberia, photographed by Sergei Mikhailovich Prokudin-Gorskii around 1910.]] *klopotec *List of windmills *watermill *windpump *wind generator ==External links== ===Indeces=== *Open Directory Project: **[http://www.dmoz.org/Science/Technology/Energy/Renewable/Wind/ Wind] **[http://www.dmoz.org/Science/Technology/Energy/Renewable/Wind/Windmills/ Windmills] **[http://www.dmoz.org/Business/Energy_and_Environment/Renewable/Wind/ Business: Wind] *[http://www.internationalwindmill.com/links.htm Water Pumping Windmill Sites] ===Collections=== *[http://www.molendatabase.nl/index_en.php Mill database with over 15000 mills from all over Europe] ===Mixed=== *[http://www.internationalwindmill.com/page_two.htm All About The American Water Pumping Windmill] *[http://www.windmillworld.com/ Windmills at Windmill World] *[http://www.windpower.org/en/core.htm Danish Wind Industry Association] ===History=== *Open Directory Project: [http://www.dmoz.org/Arts/Architecture/History/Building_Types/Mills/ Mills] *[http://www.internationalwindmill.com/windmill_history_1.htm History of the Traditional American Farm Windmill] *[http://www.windmillworld.com/windmills/history.htm windmillworld: history] *[http://www.windmill.com American Wind Power Center] - An American water pumping windmill museum in Lubbock, Texas USA. *[http://www.shattuckwindmillmuseum.org/ Shattuck Windmill Museum] Thirty-nine water pumping windmills used on the plains; located in Shattuck, Oklahoma ===Theory=== *[http://www.internationalwindmill.com/how_does_it_work.htm How Does a Water Pumping Farm Windmill Work?] *[http://earthsci.org/energy/wind/wind.html Wind Power and Windmills] *[http://www.servocomm.freeserve.co.uk/Windpower/toc.htm A Wind Turbine for pumping water] ===Test and construction=== *[http://homepages.enterprise.net/hugh0piggott/ Hugh Piggott - Scoraig Wind Electric], [http://homepages.enterprise.net/hugh0piggott/download/ Small wind systems for battery charging] **Hugh Piggott's new web page with news of courses and latest homebrew windmill action has moved to http://www.scoraigwind.com *Article: C. John Dakin, ss. 56-58, Elektor Electronics, 1996. *[http://www.elektor-electronics.co.uk/ln/details/e1996u.htm ''"A low-cost wind generator driven battery charger (January) 1 ? (Page) 56"''] Look under the topic: "Power Supplies & Battery Chargers". Power output: 10 mi/h: 1 Watt; 20 mi/h: 6 Watt; 30 mi/h: 21 Watt. Propeller design: ''Scrapyard Windmill Realities - Building Windmills with Recycled Parts by Hugh Piggott. Published by The Centre for Alternative Technology. Machynlleth, Powys. Wales SY20 9AZ. Telephone: (01654) 702400.'' ===Small windmills for urban rooftop use=== *[http://wearcam.org/urbine/ EyeTap Personal Imaging Lab, rooftop mounted battery charger] Buildings and structures Windmills
See other meanings of words starting from letter:
Words begining with Windmill:
Windmill
Windmill
Windmill.jpg
Windmillpalm_snow.jpg
Windmills
Windmills
Windmills.jpg
WindmillSessions.jpg
Windmills_in_Kent
Windmills_in_the_United_Kingdom
Windmills_in_the_United_Kingdom
Windmills_of_the_Gods
Windmillva.jpg
Windmill_(solitaire)
Windmill_Farm_Railway
Windmill_Hill
Windmill_Hill_culture
Windmill_Lane_Studios
Windmill_leiden.jpg
Windmill_Sessions_EP
Windmill_Sheridan_Co_KS_1939.jpg
Windmill_Theatre
Windmill
A windmill is an engine powered by the energy of wind. It often refers to an engine contained in a large building as in traditional post mills, smock mills and tower mills. It also refers to small tower mounted wind engines used to pump water on farms and modern wind turbines for generating electricity. ==History== ===In Europe=== [[Image:Campo de Criptana Molinos de Viento 1.jpg|thumb|250px|Spain Windmills at La Mancha.]] In Europe, windmills have been used since the Middle Ages; regions famous for their windmills include the Netherlands and La Mancha, Spain. The windmills of La Mancha were made particularly famous by a scene in Cervantes' ''Don Quixote'' where the title character mistakes them for giants sent by an evil enchanter, giving rise to the phrase "tilting at windmills". Windmills were developed from the 12th century, apparently from technology gained by crusaders who came into contact with windmills in the Middle East. Persian Empiren sources indicate windmill use as early as the 7th century BC [http://www.catpress.com/bplanet9/eeolica.htm 1] [http://web.utk.edu/~persian/windmill.htm 2]. Common applications of windmills are grain Mill (grinding)ing, water pumping, threshing, and saw mills. Over the ages, windmills have evolved into more sophisticated and efficiency wind-powered water pumps and power generators. ===In the United States=== The development of the water-pumping windmill in the USA was the major factor in allowing the farming and ranching of vast areas of North America, which were otherwise devoid of readily accessible water. They contributed to the expansion of rail transport systems, throughout the world, by pumping water from wells to supply the needs of the steam locomotives of those early times. They are still used today for the same purpose in some areas of the world where a connection to electric power lines is not a realistic option. The multi-bladed wind turbine atop a lattice tower made of wood or steel was, for many years, a fixture of the landscape throughout rural America. These mills, made by a variety of manufacturers, featured a large number of blades so that they would turn slowly but with considerable torque in low winds and be self regulating in high winds. A tower-top gearbox and crankshaft converted the rotary motion into reciprocating strokes carried downward through a pole or rod to the pump cylinder below. In areas not prone to freezing weather, a pump jack (or standard) was frequently mounted at the top of the well in the center of the base off the tower. This was the connection between the windmill and the pump rod, which generally went through the drop pipe to the cylinder below. The pump jack provided a means for manual operation of the pump when the wind was not blowing. Some pump jacks provided a sealed connection, allowing water to be forced out under pressure allowing a tank at a higher elevation to provide water for a home and other uses, but many had a simple spout allowing water to flow away in a trough by gravity. The drop pipe and pump rod continued down deep into the well, terminating at the pump cylinder below the lowest likely groundwater level. A suction tube usually continued a short distance more. This arrangement allowed wells as deep as 1200 feet (370 m) to be constructed, though most were much more shallow. Windmills and related equipment are still manufactured and installed today on farms and ranches, usually in remote parts of the western United States where electric power is not readily available. The arrival of electricity in rural areas, brought by the Rural Electrification Administration (REA) in the 1930s through 1950s, contributed to the decline in the use of windmills in the US. Today, with increases in energy prices and the expense of replacing electric pumps, has led to an increase in the repair, restoration and installation of new windmills. ==See also== [[Image:Prokudin-Gorskii-06.jpg|thumb|250px|Windmills of Western Siberia, photographed by Sergei Mikhailovich Prokudin-Gorskii around 1910.]] *klopotec *List of windmills *watermill *windpump *wind generator ==External links== ===Indeces=== *Open Directory Project: **[http://www.dmoz.org/Science/Technology/Energy/Renewable/Wind/ Wind] **[http://www.dmoz.org/Science/Technology/Energy/Renewable/Wind/Windmills/ Windmills] **[http://www.dmoz.org/Business/Energy_and_Environment/Renewable/Wind/ Business: Wind] *[http://www.internationalwindmill.com/links.htm Water Pumping Windmill Sites] ===Collections=== *[http://www.molendatabase.nl/index_en.php Mill database with over 15000 mills from all over Europe] ===Mixed=== *[http://www.internationalwindmill.com/page_two.htm All About The American Water Pumping Windmill] *[http://www.windmillworld.com/ Windmills at Windmill World] *[http://www.windpower.org/en/core.htm Danish Wind Industry Association] ===History=== *Open Directory Project: [http://www.dmoz.org/Arts/Architecture/History/Building_Types/Mills/ Mills] *[http://www.internationalwindmill.com/windmill_history_1.htm History of the Traditional American Farm Windmill] *[http://www.windmillworld.com/windmills/history.htm windmillworld: history] *[http://www.windmill.com American Wind Power Center] - An American water pumping windmill museum in Lubbock, Texas USA. *[http://www.shattuckwindmillmuseum.org/ Shattuck Windmill Museum] Thirty-nine water pumping windmills used on the plains; located in Shattuck, Oklahoma ===Theory=== *[http://www.internationalwindmill.com/how_does_it_work.htm How Does a Water Pumping Farm Windmill Work?] *[http://earthsci.org/energy/wind/wind.html Wind Power and Windmills] *[http://www.servocomm.freeserve.co.uk/Windpower/toc.htm A Wind Turbine for pumping water] ===Test and construction=== *[http://homepages.enterprise.net/hugh0piggott/ Hugh Piggott - Scoraig Wind Electric], [http://homepages.enterprise.net/hugh0piggott/download/ Small wind systems for battery charging] **Hugh Piggott's new web page with news of courses and latest homebrew windmill action has moved to http://www.scoraigwind.com *Article: C. John Dakin, ss. 56-58, Elektor Electronics, 1996. *[http://www.elektor-electronics.co.uk/ln/details/e1996u.htm ''"A low-cost wind generator driven battery charger (January) 1 ? (Page) 56"''] Look under the topic: "Power Supplies & Battery Chargers". Power output: 10 mi/h: 1 Watt; 20 mi/h: 6 Watt; 30 mi/h: 21 Watt. Propeller design: ''Scrapyard Windmill Realities - Building Windmills with Recycled Parts by Hugh Piggott. Published by The Centre for Alternative Technology. Machynlleth, Powys. Wales SY20 9AZ. Telephone: (01654) 702400.'' ===Small windmills for urban rooftop use=== *[http://wearcam.org/urbine/ EyeTap Personal Imaging Lab, rooftop mounted battery charger] Buildings and structures Windmills
Windmill
See other meanings of words starting from letter:
W
WA | WB | WC | WD | WE | WF | WG | WH | WI | WJ | WK | WL | WM | WN | WO | WP | WR | WS | WT | WU | WX | WY | WZ |Words begining with Windmill:
Windmill
Windmill
Windmill.jpg
Windmillpalm_snow.jpg
Windmills
Windmills
Windmills.jpg
WindmillSessions.jpg
Windmills_in_Kent
Windmills_in_the_United_Kingdom
Windmills_in_the_United_Kingdom
Windmills_of_the_Gods
Windmillva.jpg
Windmill_(solitaire)
Windmill_Farm_Railway
Windmill_Hill
Windmill_Hill_culture
Windmill_Lane_Studios
Windmill_leiden.jpg
Windmill_Sessions_EP
Windmill_Sheridan_Co_KS_1939.jpg
Windmill_Theatre
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