Einstein's elevator
E57414
Einstein's elevator is a famous thought experiment devised by Albert Einstein to illustrate the equivalence between gravitational and inertial effects, forming a key conceptual basis for general relativity.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
example in physics
ⓘ
illustration of the equivalence principle ⓘ thought experiment ⓘ |
| coreConcept |
equivalence of gravitational and inertial mass
ⓘ
equivalence principle ⓘ indistinguishability of uniform acceleration and uniform gravitational field ⓘ local equivalence of gravity and acceleration ⓘ |
| field |
general relativity
ⓘ
gravitation ⓘ theoretical physics ⓘ |
| hasAuthor | Albert Einstein ⓘ |
| hasFormulationPeriod | early 20th century ⓘ |
| hasLimitation |
applies only locally in spacetime
ⓘ
does not capture tidal gravitational effects ⓘ |
| hasNotableFeature |
compares two physically indistinguishable situations
ⓘ
provides intuitive access to abstract relativistic ideas ⓘ uses an enclosed elevator to isolate local physics ⓘ |
| hasScenario |
elevator at rest in a uniform gravitational field
ⓘ
elevator uniformly accelerating in empty space ⓘ light beam appears curved in gravitational field ⓘ light beam appears curved to observer in accelerating elevator ⓘ objects fall to the floor of the elevator in both cases ⓘ observer in a small enclosed elevator cannot see outside ⓘ |
| historicalRole | conceptual step toward Einstein's formulation of general relativity ⓘ |
| illustrates |
equivalence between gravitational effects and inertial effects
ⓘ
foundation of general relativity ⓘ idea that gravity can be described geometrically ⓘ local nature of gravitational fields ⓘ principle that free fall is locally inertial motion ⓘ |
| influencedBy | Einstein's work on special relativity ⓘ |
| influences |
modern physics education on relativity
ⓘ
popular explanations of gravity as spacetime curvature ⓘ |
| mentionedIn | Einstein's writings on the general theory of relativity ⓘ |
| relatedTo |
bending of light by gravity
ⓘ
equivalence principle ⓘ free-fall reference frame ⓘ general relativity ⓘ
surface form:
general theory of relativity
gravitational redshift thought experiment ⓘ local inertial frame ⓘ |
| supportsConclusion |
gravitational redshift of light
ⓘ
gravity affects the path of light ⓘ local experiments cannot distinguish uniform acceleration from uniform gravity ⓘ time dilation in a gravitational field ⓘ |
| usedFor |
conceptual motivation for curved spacetime
ⓘ
explaining general relativity to non-specialists ⓘ pedagogical explanation of the equivalence principle ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.