what is a vane
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vane Definition of vane. 1  1a : a movable device attached to an elevated object (as a spire) for showing the direction of the windb : one that is changeable or inconstant. 2  2 : a thin flat or curved object that is rotated about an axis by a flow of fluid or that rotates to cause a fluid to flow or that redirects a flow of fluid the vanes of a windmill.
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Oval An oval is a closed curve in a plane which loosely resembles the outline of an egg. The term is not very specific, but in some areas it is given a more precise definition, which may include either one or two axes of symmetry. In common English, the term is used in a broader sense: any shape which reminds one of an egg. The three-dimensional version of an oval is called an ovoid.
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- propeller. 1  a device having a revolving hub with radiating blades, for propelling an airplane, ship, etc. 2  a person or thing that propels. 3  the bladed rotor of a pump that drives the fluid axially. 4  a wind-driven, usually three-bladed, device that provides mechanical energy, as for driving an electric alternator in wind plants.
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Kite A kite is traditionally a tethered heavier-than-air craft with wing surfaces that react against the air to create lift and drag. A kite consists of wings, tethers, pulleys, and anchors. Kites often have a bridle to guide the face of the kite at the correct angle so the wind can lift it.
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wind vane (definition) Home > Shopping Tools > Weather Station Glossary of Terms > wind vane (definition) A wind vane is a device that measures the direction of the wind. The wind vane is usually combined with the anemometer. Wind direction is the direction from which the wind is blowing.
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reel 1 a cylinder, frame, or other device that turns on an axis and is used to wind up or pay out something. a rotatory device attached to a fishing rod at the butt, for winding up or letting out the line.
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- A windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades. Centuries ago, windmills usually were used to mill grain, pump water, or both. Thus they often were gristmills, windpumps, or both. The majority of modern windmills take the form of wind turbines used to generate electricity, or windpumps used to pump water, either for land drainage or to extract groundwater.
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Effect Of The Gold Rush The search for gold has had a profound affect on the history of North America. In 1539, it was rumors of gold that drew the Spanish conquistador, Hernando de Soto, on his famous expedition across what would become the South Eastern United States.
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Loquat and Apricot Seeds Other foods containing amygdalin are loquat seeds, apple pips, grape seeds, millet, broad beans, most berries, cassava and many other seeds, beans, pulses and grains-but not ones that have been highly hybridised (African orange pips contain some amygdalin, but American ones don't, wheat is low in amygdalin).ther foods containing amygdalin are loquat seeds, apple pips, grape seeds, millet, broad beans, most berries, cassava and many other seeds, beans, pulses and grains-but not ones that have been highly hybridised (African orange pips contain some amygdalin, but American ones don't, wheat is low in amygdalin).
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Propeller The propeller rotates clockwise to propel the ship forward when viewed from astern (right of picture); the person in the picture has his hand on the blade's trailing edge. A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and a fluid (such as air or water) is accelerated behind the blade.
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turbine Noun. 1. turbine-rotary engine in which the kinetic energy of a moving fluid is converted into mechanical energy by causing a bladed rotor to rotate. vane, blade-flat surface that rotates and pushes against air or water.oun. 1. turbine-rotary engine in which the kinetic energy of a moving fluid is converted into mechanical energy by causing a bladed rotor to rotate. vane, blade-flat surface that rotates and pushes against air or water.
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Sail switch Sail switch. A sail switch, vane switch or flow switch is a mechanical switch that is switched on or off in response to the flow or non-flow of a fluid such as air or water. A sail switch typically operates through the use of a paddle which gets displaced due to the force of fluid moving past it. Sail switches find application in the detection of fluid flow and measurement of fan speeds.
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vane (veɪn) n. 1. weather vane. 2. any of a number of blades or plates attached radially to a rotating cylinder or shaft, as in a turbine or windmill, that move or are moved by a fluid, as steam or air. 3. a person who is readily changeable or fickle.
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How is the wind measured? Wind has both speed and direction. Anemometers measure wind speed and wind vanes measure wind direction. A typical wind vane has a pointer in front and fins in back. When the wind is blowing, the wind vane points into the wind. For example, in a north wind, the wind vane points northward. A cup anemometer is a common tool to measure wind speed. The cups catch the wind and produce pressure difference inside and outside the cup. The pressure difference, along with the force of the wind, causes the cups to rotate.
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Anemometer A vane anemometer thus combines a propeller and a tail on the same axis to obtain accurate and precise wind speed and direction measurements from the same instrument. The speed of the fan is measured by a rev counter and converted to a windspeed by an electronic chip.
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turbine The definition of a turbine is an engine that provides continuous power because a wheel or a rotor is continually turning due to pressure from fast moving water, gas or steam. An engine powered by water pressure causing a wheel to turn that allows you to run your dairy machine is an example of a turbine.
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Flight control surfaces The rudder is a fundamental control surface which is typically controlled by pedals rather than at the stick. It is the primary means of controlling yaw—the rotation of an airplane about its vertical axis. The rudder may also be called upon to counter-act the adverse yaw produced by the roll-control surfaces. If rudder is continuously applied in level flight the aircraft will yaw initially in the direction of the applied rudder – the primary effect of rudder. After a few seconds the aircraft will tend to bank in the direction of yaw.
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Wind direction An example of a wind vane. Wind direction is reported by the direction from which it originates. For example, a northerly wind blows from the north to the south. Wind direction is usually reported in cardinal directions or in azimuth degrees. For example, a wind coming from the south is given as 180 degrees; one from the east is 90 degrees.
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vixen Vane, which used to mean flag, has a cognate in the German word for flag, Fahne, showing the original f. Vixen, finally, represents the southern pronunciation of a word that goes back to Old English fyxe, the feminine of fox. It was formed by a change in the root vowel of fox and the addition of a suffix -e or -en.
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21. Tire Blowouts The good news is that car accidents, caused by blowouts, have decreased in recent years due to improvements in tire technology. Yet, when a blowout does occur, the resulting car accident can be much more dangerous because people are not as accustomed to them.
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Fan (machine) The fan consists of a rotating arrangement of vanes or blades which act on the fluid. The rotating assembly of blades and hub is known as an impeller, a rotor, or a runner. Usually, it is contained within some form of housing or case. This may direct the airflow or increase safety by preventing objects from contacting the fan blades.
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Cornice A rake is an architectural term for an eave or cornice which runs along the gable of the roof of a modern residential structure. It may also be called a sloping cornice, a raking cornice. The trim and rafters at this edge are called rake-, verge-, or barge-board or verge-or barge-rafter. It is a sloped timber on the outside facing edge of a roof running between the ridge and the eave.
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Wikijunior:How Things Work/Inclined Plane Propellers are inclined planes that transmits power by converting rotational motion into thrust. Two of the other six simple machines are based on the inclined plane. The wedge is a compound portable inclined plane. It is made of two inclined planes that meet at an edge. The screw is an inclined plane wrapped around a cylinder.
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Rotary vane pump 4. spring. A rotary vane pump is a positive-displacement pump that consists of vanes mounted to a rotor that rotates inside of a cavity. In some cases these vanes can have variable length and/or be tensioned to maintain contact with the walls as the pump rotates.
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What is a Weather Vane? What is a Weather Vane? According to The American Heritage Dictionary of the English Language: weath'-er-vane, noun, a device for indicating wind direction. While some purists insist that the proper term is wind vane, we prefer the historically accepted and most used weather vane. We also believe that a picture would best describe a weather vane, so here goes.... There are only two basic rules that must be followed when designing a weather vane:
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Wind direction An example of a wind vane. Wind direction is reported by the direction from which it originates. For example, a northerly wind blows from the north to the south. Wind direction is usually reported in cardinal directions or in azimuth degrees. For example, a wind coming from the south is given as 180 degrees; one from the east is 90 degrees. A variety of instruments can be used to measure wind direction, such as the windsock and wind vane. Both of these instruments work by moving to minimize air resistance.