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  2. Vertical lathe - Wikipedia

    en.wikipedia.org/wiki/Vertical_lathe

    A vertical lathe is a lathe where the axis of rotation is oriented vertically, unlike most conventional lathes which are oriented horizontally. Many of them are frontal lathes , meaning they do not have the option of mounting a tailstock , but vertical lathes can also be implemented as parallel lathes .

  3. List of retronyms - Wikipedia

    en.wikipedia.org/wiki/List_of_retronyms

    Minecraft: Java Edition The original release of the game, on Microsoft Windows, was simply known as Minecraft prior to the release of Minecraft: Windows 10 Edition. In addition, other versions of the video game on Microsoft Windows are Minecraft Classic, Minecraft 4k, and Minecraft: Education Edition. Monaural sound, monophonic sound or mono sound

  4. Rotation (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Rotation_(mathematics)

    The rotation is acting to rotate an object counterclockwise through an angle θ about the origin; see below for details. Composition of rotations sums their angles modulo 1 turn, which implies that all two-dimensional rotations about the same point commute. Rotations about different points, in general, do not commute.

  5. Rotation - Wikipedia

    en.wikipedia.org/wiki/Rotation

    A sphere rotating (spinning) about an axis. Rotation or rotational motion is the circular movement of an object around a central line, known as an axis of rotation.A plane figure can rotate in either a clockwise or counterclockwise sense around a perpendicular axis intersecting anywhere inside or outside the figure at a center of rotation.

  6. Rotation around a fixed axis - Wikipedia

    en.wikipedia.org/wiki/Rotation_around_a_fixed_axis

    Rotation around a fixed axis or axial rotation is a special case of rotational motion around an axis of rotation fixed, stationary, or static in three-dimensional space.This type of motion excludes the possibility of the instantaneous axis of rotation changing its orientation and cannot describe such phenomena as wobbling or precession.

  7. Jiaobei - Wikipedia

    en.wikipedia.org/wiki/Jiaobei

    Moon blocks or jiaobei (also written as jiao bei etc. variants; Chinese: 筊杯 or 珓杯; pinyin: jiǎo bēi; Jyutping: gaau2 bui1), also poe (from Chinese: 桮; Pe̍h-ōe-jī: poe; as used in the term "poe divination"), are wooden divination tools originating from China, which are used in pairs and thrown to seek divine guidance in the form ...

  8. Conversion between quaternions and Euler angles - Wikipedia

    en.wikipedia.org/wiki/Conversion_between...

    The resulting orientation of Body 3-2-1 sequence (around the capitalized axis in the illustration of Tait–Bryan angles) is equivalent to that of lab 1-2-3 sequence (around the lower-cased axis), where the airplane is rolled first (lab-x axis), and then nosed up around the horizontal lab-y axis, and finally rotated around the vertical lab-z ...

  9. Left rotation - Wikipedia

    en.wikipedia.org/wiki/Left_rotation

    In a binary search tree, a left rotation is the movement of a node, X, down to the left.This rotation assumes that X has a right child (or subtree). X's right child, R, becomes X's parent node and R's left child becomes X's new right child.