The term rotation can be used in several way and includes various topics. Generally, it's used to denote the rotation of movement of a rigid body in such a way that any given point of that body remains at a constant distance from some other fixed point This article is about rotation as a movement of a physical body. ... In physics, a rigid body is an idealisation of a solid body of finite dimension in which deformation is neglected. ...

More specifically, it is applicable to:

• The farming practice of crop rotation.
• The business management approach of job rotation.
• The retail practice of rotating stock (especially fresh produce/bread) to ensure the stock with the soonest sell by date is at the front of the shelf - meaning it will be sold first.

In science: Growing the same crop repeatedly in the same place eventually depletes the soil of various nutrients. ... In leadership development, an approach to management development is job rotation where an individual is moved through a schedule of assignments designed to give him or her a breadth of exposure to the entire operation. ... Shelf-life is the length of time that corresponds to a tolerable loss in quality of a processed food. ... For the scientific journal named Science, see Science (journal). ...

• The differential rotation of objects.
• The optical rotation polarization.

In geometry and mathematics: Differential rotation is seen if parts of a rotating object move with different angular velocity. ... When polarized light is passed through a substance containing chiral molecules (or nonchiral molecules arranged asymmetrically), the direction of polarization can be changed. ... Geometry (from the Greek words Ge = earth and metro = measure) is the branch of mathematics first introduced by Theaetetus dealing with spatial relationships. ... Mathematics, often abbreviated maths in Commonwealth English and math in American English, is the study of abstraction. ...

• A coordinate rotation is the transformation of coordinate systems.
• An improper rotation producing an inversion.

In music: In linear algebra and geometry, a coordinate rotation is a transformation from one system of coordinates to another system of coordinates, such that distance between any two points remains invariant under the transformation. ... In geometry, an improper rotation is the combination of an ordinary rotation of three-dimensional Euclidean space, that keeps the origin fixed, with a coordinate inversion (a vector x goes to −x). ... Inversion has different meanings in different fields of knowledge: Something that is inverted or the process by which an inverse is obtained. ... Music is an art, entertainment, or other human activity which involves organized sound, though definitions may vary. ...

• An order operation that may be performed on a set of pitches or pitch classes, where the last member is placed first. Sets which may be mapped onto each other through rotation are rotationally equivalent. See: transformation, permutation
• In music radio, the term refers to how often a song is played. See spin (radio).

Other: Order is the opposite of anarchy and chaos. ... The word operation can mean any of several things: The method, act, process, or effect of using a device or system. ... In music, pitch is the perception of the frequency of a note. ... In music and music theory a pitch class contains all notes that have the same name; for example, all Es, no matter which octave they are in, are in the same pitch class. ... In mathematics, an equivalence relation on a set X is a binary relation on X that is reflexive, symmetric and transitive, i. ... Transformation has two meanings in molecular biology: Transformation is the genetic alteration of a cell resulting from the introduction, uptake and expression of foreign DNA. Transformation is also the process by which normal cells are converted into cells that will continue to divide without limit. ... Categories: Wikipedia cleanup | Stub ... In radio broadcasting, a spin is a single play of a song. ...

• Rotation is also the name of a billiards game.

• In baseball pitching, the rotation is the group of starting pitchers for a team, and the order in which they pitch.

• The Rotation Speed of an aircraft is the speed required at take-off for the nose to begin lifting off the runway.