Foucault pendulum
E758294
The Foucault pendulum is a long, freely swinging pendulum that dramatically demonstrates Earth's rotation by slowly changing the direction of its swing relative to the ground.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Il pendolo di Foucault | 2 |
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
pendulum
ⓘ
physics experiment ⓘ scientific demonstration ⓘ |
| component |
damping compensation mechanism
ⓘ
fixed support ⓘ launch mechanism ⓘ long cable ⓘ massive bob ⓘ |
| demonstrates | Earth's rotation ⓘ |
| exhibits | precession of swing plane ⓘ |
| field |
classical mechanics
ⓘ
physics education ⓘ |
| firstDemonstratedBy | Léon Foucault NERFINISHED ⓘ |
| firstPublicDemonstrationLocation | Panthéon, Paris NERFINISHED ⓘ |
| firstPublicDemonstrationYear | 1851 ⓘ |
| hasEducationalUse | visual demonstration of Earth's rotation ⓘ |
| hasProperty |
freely swinging
ⓘ
large amplitude of swing ⓘ long period of oscillation ⓘ minimal air resistance ⓘ minimal friction ⓘ oscillates in a vertical plane ⓘ suspension point fixed to Earth ⓘ |
| namedAfter | Léon Foucault NERFINISHED ⓘ |
| oftenLocatedIn |
planetariums
ⓘ
public buildings ⓘ science museums ⓘ universities ⓘ |
| precessionDueTo |
Coriolis effect
NERFINISHED
ⓘ
Earth's rotation ⓘ |
| precessionRate |
maximum at geographic poles
ⓘ
zero at equator ⓘ |
| precessionRateDependsOn | latitude ⓘ |
| relatedConcept |
Coriolis effect
NERFINISHED
ⓘ
Earth's rotation axis NERFINISHED ⓘ inertial frame of reference ⓘ non-inertial frame of reference ⓘ |
| requires |
careful alignment at start
ⓘ
rigid building structure ⓘ very long suspension length ⓘ |
| swingPlaneAppearsToRotate | relative to Earth's surface ⓘ |
| swingPlaneIsFixedIn | inertial space (approximately) ⓘ |
| typicalBobMass | tens of kilograms or more GENERATED ⓘ |
| typicalCableLength | several meters to tens of meters GENERATED ⓘ |
| usedToIllustrate |
Coriolis force
NERFINISHED
ⓘ
inertial reference frame ⓘ non-inertial reference frame ⓘ |
| usedToTest | rotation of Earth ⓘ |
| uses | long pendulum ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Umberto Eco
this entity surface form:
Il pendolo di Foucault
this entity surface form:
Il pendolo di Foucault