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Background Thom Yorke (pictured in 2001) and the band sought a less introspective direction than previous album The Bends. In 1995, Radiohead toured in support of their second album, The Bends (1995). Midway through the tour, Brian Eno commissioned them to contribute a song to The Help Album, a charity compilation organised by War Child ; the album was to be recorded over the course of a ...
Intersection (geometry) The red dot represents the point at which the two lines intersect. In geometry, an intersection is a point, line, or curve common to two or more objects (such as lines, curves, planes, and surfaces). The simplest case in Euclidean geometry is the line–line intersection between two distinct lines, which either is one ...
Geometrical optics. Geometrical optics, or ray optics, is a model of optics that describes light propagation in terms of rays. The ray in geometrical optics is an abstraction useful for approximating the paths along which light propagates under certain circumstances. The simplifying assumptions of geometrical optics include that light rays:
t. e. In heraldry, an ordinary is one of the two main types of charges, beside the mobile charges. An ordinary is a simple geometrical figure, bounded by straight lines and running from side to side or top to bottom of the shield. There are also some geometric charges known as subordinaries, which have been given lesser status by some heraldic ...
In heraldry, a charge is any emblem or device occupying the field of an escutcheon (shield). That may be a geometric design (sometimes called an ordinary) or a symbolic representation of a person, animal, plant, object, building, or other device. In French blazon, the ordinaries are called pièces, and other charges are called meubles (" [the ...
The coat of arms of the Counts of Flanders is an early example of heraldry, dating back to at least 1224. The vast majority of armorial bearings from the early days of heraldry use only one colour and one metal, which would lead later heraldists to ponder the possibility that there was an unspoken rule regarding the use of tinctures.
Line–line intersection. In Euclidean geometry, the intersection of a line and a line can be the empty set, a point, or another line. Distinguishing these cases and finding the intersection have uses, for example, in computer graphics, motion planning, and collision detection . In three-dimensional Euclidean geometry, if two lines are not in ...
The arms of "Bleichröder, banker to Bismarck", show chequy fimbriated (the chequers being divided by thin lines). The arms of the 85th Air Division (Defense) of the United States Air Force show "a checky grid" on part of the field, though this is to be distinguished from "chequy".