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Wheat sheaves near King's Somborne.Here the individual sheaves have been put together into a stook ("stooked") to dry. A sheaf of grain on a plaque Sheafing machine. A sheaf (/ ʃ iː f /; pl.: sheaves) is a bunch of cereal-crop stems bound together after reaping, traditionally by sickle, later by scythe or, after its introduction in 1872, by a mechanical reaper-binder.
Sheaves is the plural of either of two nouns: Sheaf (disambiguation) Sheave This page was last edited on 1 October 2024, at 19:34 (UTC). Text is available under the ...
Sheave without a rope. A pulley is a wheel on an axle or shaft enabling a taut cable or belt passing over the wheel to move and change direction, or transfer power between itself and a shaft. A sheave or pulley wheel is a pulley using an axle supported by a frame or shell (block) to guide a cable or exert force.
Especially in the context of sheaves on manifolds, sheaf cohomology can often be computed using resolutions by soft sheaves, fine sheaves, and flabby sheaves (also known as flasque sheaves from the French flasque meaning flabby). For example, a partition of unity argument shows that the sheaf of smooth functions on a manifold is soft.
Wheat sheaves near King's Somborne, England arranged into a stook. Stooking maize in Kenya.. A stook /stʊk/, also referred to as a shock or stack, [1] is an arrangement of sheaves of cut grain-stalks placed so as to keep the grain-heads off the ground while still in the field and before collection for threshing.
The broadest definition includes handheld power tools, but in general usage, the term implies huge motorized machines, particularly tractors and the many types of farm implements which they tow and/or supply power to. The mechanization of agricultural tasks is a defining element of industrial agriculture.
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Sheave, a wheel or roller with a groove along its edge for holding a belt, rope or cable Topics referred to by the same term This disambiguation page lists articles associated with the title Sheaf .