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The hoop hoe, also known as the action hoe, [17] [18] oscillating hoe, hula hoe, [18] stirrup hoe, [18] scuffle hoe, [18] loop hoe, [18] pendulum weeder, [19] or swivel hoe) has a double-edge blade that bends around to form a rectangle attached to the shaft. Weeds are cut just below the surface of the soil as the blade is pushed and pulled.
Collinear dipole array on repeater for radio station JOHG-FM on Mt. Shibisan, Kagoshima, Japan. In telecommunications, a collinear antenna array (sometimes spelled colinear antenna array) is an array of dipole or quarter-wave antennas mounted in such a manner that the corresponding elements of each antenna are parallel and collinear; that is, they are located along a common axis.
Simply, a collineation is a one-to-one map from one projective space to another, or from a projective space to itself, such that the images of collinear points are themselves collinear. One may formalize this using various ways of presenting a projective space. Also, the case of the projective line is special, and hence generally treated ...
Two variables are perfectly collinear if there is an exact linear relationship between the two, so the correlation between them is equal to 1 or −1. That is, X 1 and X 2 are perfectly collinear if there exist parameters λ 0 {\displaystyle \lambda _{0}} and λ 1 {\displaystyle \lambda _{1}} such that, for all observations i , we have
It is essentially the only projective invariant of a quadruple of collinear points; this underlies its importance for projective geometry. The cross-ratio had been defined in deep antiquity, possibly already by Euclid, and was considered by Pappus, who noted its key invariance property. It was extensively studied in the 19th century. [1]
Pitching hay. A pitchfork or hay fork is an agricultural tool used to pitch loose material, such as hay, straw, manure, or leaves.It has a long handle and usually two to five thin tines designed to efficiently move such materials.
Barrington Court; Bath Assembly Rooms; Brean Down; Brean Down Fort; Burrow Mump; Cadbury Camp; Cheddar Gorge; Clevedon Court; Coleridge Cottage; Crook Peak to Shute Shelve Hill
Hoe is a village and former civil parish, now in the parish of Hoe and Worthing, situated in Norfolk. The parish of Hoe and Worthing covers an area of 925 hectares (2,290 acres), with an estimated population of 219 at the 2001 census , [ 2 ] increasing to 241 at the 2011 Census.