Born rigidity
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Born rigidity, proposed by and later named after Max Born, is a concept in special relativity. It is one answer to the question of what, in special relativity, corresponds to the rigid body of non-relativistic classical mechanics.
The defining property of Born rigidity is locally constant distance in the co-moving frame for all points of the body in question. It is a very restrictive sense of rigidity; for example, it is impossible to put a disk into rotation while maintaining its Born rigidity. Several weaker substitutes have been proposed as rigidity conditions.
Note that Born rigidity is a constraint on the motion of an extended body, achieved by careful application of forces to different parts of the body. A body rigid in itself would violate special relativity, as its speed of sound would be infinite.
[edit] See also
[edit] References
- Max Born, Einstein's Theory of Relativity, Dover Publications 1962, ISBN 0-486-60769-0
- Wolfgang Pauli, Theory of Relativity, Dover Publications 1981, ISBN 0-486-64152-X
[edit] External links
- Born Rigidity, Acceleration, and Inertia at mathpages.com
- The Rigid Rotating Disk in Relativity in the USENET Physics FAQ
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