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Rotation matrix. In linear algebra, a rotation matrix is a transformation matrix that is used to perform a rotation in Euclidean space. For example, using the convention below, the matrix. rotates points in the xy plane counterclockwise through an angle θ about the origin of a two-dimensional Cartesian coordinate system.
The top drive allows the drilling rig to drill the longer section of a stand of drill pipe in one operation. [1] A rotary table type rig can only drill 30-foot (9.1 m) (single drill pipe) sections of drill pipe whereas a top drive can drill 60–90-foot (18–27 m) stands (double and triple drill pipe respectively, a triple being three joints of drillpipe screwed together), depending on the ...
3D visualization of a sphere and a rotation about an Euler axis (^) by an angle of In 3-dimensional space, according to Euler's rotation theorem, any rotation or sequence of rotations of a rigid body or coordinate system about a fixed point is equivalent to a single rotation by a given angle about a fixed axis (called the Euler axis) that runs through the fixed point. [6]
Block by Block (program) Block by Block is a charitable initiative founded as a partnership between Minecraft developer Mojang and the United Nations which aims to encourage young people to get involved in urban regeneration. [1] The scheme uses Minecraft to allow children to rebuild and reimagine their hometowns. [2]
Rotation in mathematics is a concept originating in geometry. Any rotation is a motion of a certain space that preserves at least one point. It can describe, for example, the motion of a rigid body around a fixed point. Rotation can have a sign (as in the sign of an angle): a clockwise rotation is a negative magnitude so a counterclockwise turn ...
The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.
Puzzle. tile-matching. Mode (s) Single-player. multiplayer. Tetris (formerly stylized as: TET Я IS) (Russian: Тетрис[a]) is a puzzle video game created in 1985 by Alexey Pajitnov, a Soviet software engineer. [1] It has been published by several companies on more than 65 platforms, setting a Guinness world record for the most ported game.
The rotary engine is an early type of internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration. The engine's crankshaft remained stationary in operation, while the entire crankcase and its attached cylinders rotated around it as a unit.