## Rigid Body

In physics, a **rigid body** is an idealization of a solid body of finite size in which deformation is neglected. In other words, the distance between any two given points of a rigid body remains constant in time regardless of external forces exerted on it. Even though such an object cannot physically exist due to relativity, objects can normally be assumed to be perfectly rigid if they are not moving near the speed of light.

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### Some articles on rigid body:

**Rigid Body**- Configuration Space

... The configuration space of a

**rigid body**with one point fixed (i.e ... a

**body**with zero translational motion) is given by the underlying manifold of the rotation group SO(3) ... The configuration space of a nonfixed (with non-zero translational motion)

**rigid body**is E+(3), the subgroup of direct isometries of the Euclidean group in three dimensions (combin ...

Couple (mechanics) - Forces and Couples

... A force F applied to a

... A force F applied to a

**rigid body**at a distance d from the center of mass has the same effect as the same force applied directly to the center of mass and a couple C ... couple produces an angular acceleration of the**rigid body**at right angles to the plane of the couple ... The force at the center of mass accelerates the**body**in the direction of the force without change in orientation ...Coot (program) - Features - Model Building Tools

...

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**Rigid body**fit zone - optimize the fit of a**rigid body**to the electron density ... Rotate/translate zone - manually position a**rigid body**...Spatial Acceleration

... In physics the study of

... In physics the study of

**rigid body**motion provides for several ways of defining the acceleration state of a**rigid body**... entails following a single particle/point along the**rigid body**and observing its changes of velocity ...Constraint Algorithm - Mathematical Background

... is used, for example, in describing the motion of a

... is used, for example, in describing the motion of a

**rigid body**the position and orientation of a**rigid body**can be described by six independent, unconstrained coordinates ... could introduce strong spring forces that enforce the distances among mass points within a "**rigid**"**body**...### Famous quotes containing the words body and/or rigid:

“Critical lice are like *body* lice, which desert corpses to seek the living.”

—Théophile Gautier (1811–1872)

“The essence of statesmanship is not a *rigid* adherence to the past, but a prudent and probing concern for the future.”

—Hubert H. Humphrey (1911–1978)

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