Ehrenfest paradox
E735841
The Ehrenfest paradox is a thought experiment in special relativity that highlights the apparent contradictions arising from applying relativistic length contraction to a rigid rotating disk.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ehrenfest paradox canonical | 1 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
paradox in physics
ⓘ
special relativity paradox ⓘ thought experiment ⓘ |
| addresses |
consistency of special relativity with rotating rigid disks
ⓘ
definition of rigidity in relativistic physics ⓘ geometry of space measured by rotating observers ⓘ |
| context |
discussion of rigid bodies in relativity
ⓘ
early development of special relativity ⓘ |
| describes |
apparent contradiction between special relativity and rigid rotation
ⓘ
different length contraction of circumference and radius of a rotating disk ⓘ incompatibility of global rigid rotation with special relativity ⓘ non-Euclidean spatial geometry in rotating frames ⓘ relativistic effects in rotating frames ⓘ |
| field |
special relativity
ⓘ
theoretical physics ⓘ |
| hasAspect |
application of Lorentz contraction to a rotating rim
ⓘ
assumption of a perfectly rigid disk ⓘ stress and strain in relativistic rotating bodies ⓘ transition from rest to uniform rotation ⓘ |
| hasConsequence |
demonstrates impossibility of perfectly rigid bodies in relativity
ⓘ
implies spatial geometry in rotating frame is non-Euclidean ⓘ motivates use of general relativity for rotating systems ⓘ shows limitations of naive application of Lorentz contraction ⓘ |
| mainSubject |
Born rigidity
ⓘ
circumference-to-radius ratio ⓘ length contraction ⓘ non-inertial reference frames ⓘ relativistic rigidity ⓘ relativistic rotation ⓘ rigid body motion ⓘ rotating disk ⓘ spacetime geometry ⓘ |
| namedAfter | Paul Ehrenfest NERFINISHED ⓘ |
| proposedBy | Paul Ehrenfest NERFINISHED ⓘ |
| publicationYear | 1909 ⓘ |
| relatedTo |
Bell's spaceship paradox
NERFINISHED
ⓘ
Born rigidity NERFINISHED ⓘ Lorentz contraction NERFINISHED ⓘ Minkowski spacetime NERFINISHED ⓘ Sagnac effect NERFINISHED ⓘ general relativity NERFINISHED ⓘ non-inertial coordinate systems ⓘ relativistic rigid body problem ⓘ rotating reference frames ⓘ |
| resolvedBy |
abandonment of perfectly rigid bodies in relativity
ⓘ
introduction of Born rigidity concept ⓘ recognition of non-Euclidean spatial geometry in rotating frames ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.