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Lindsay Corporation (NYSE: LNN), formerly known as Lindsay Manufacturing Co., is a manufacturer of Zimmatic brand center pivot irrigation systems, based in the U.S. state of Nebraska. It also manufactures farm and construction machinery, as well as road and railroad infrastructure equipment.
A satellite image of circular fields characteristic of center pivot irrigation, Kansas Farmland with circular pivot irrigation. Center-pivot irrigation (sometimes called central pivot irrigation), also called water-wheel and circle irrigation, is a method of crop irrigation in which equipment rotates around a pivot and crops are watered with sprinklers.
Crops are often planted in a circle to conform to the center pivot. This type of system is known as LEPA (Low Energy Precision Application). Originally, most center pivots were water-powered. These were replaced by hydraulic systems (T-L Irrigation) and electric-motor-driven systems (Reinke, Valley, Zimmatic). Many modern pivots feature GPS ...
Valmont Industries, Inc. is a large, publicly held American manufacturer of Valley center pivot and linear irrigation equipment, windmill support structures, lighting and traffic poles and steel utility poles. Their corporate office is in Omaha, Nebraska. Their plant and aviation department is in Valley, Nebraska.
Center pivot irrigation in Saudi Arabia is typical of many isolated irrigation projects scattered throughout the arid and hyper-arid regions of the Earth. Nonrenewable fossil water is mined from depths as great as 1 km (3,000 ft), pumped to the surface, and distributed via large center pivot irrigation feeds.
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A centreboard (often called a lifting foil in a modern racing dinghy) is used to provide lift to counter the lateral force from the sails.This is required for sailboats to move in directions other than downwind, since the force of the sail is never closer than 45 degrees to the apparent wind.
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