Linked from
The 16 pages that link to Foucault pendulum, each with the reason it gives.
Coriolis effectRelated: It demonstrates Earth's rotation through a related rotating-frame effect.
PendulumBroader topic: Its motion makes the rotation of the ground observable.
Coriolis forceBroader topic: Its changing swing direction demonstrates rotation-related deflection.
Fictitious forceRelated: Its changing swing direction demonstrates rotational-frame effects.
Umberto EcoBroader topic: Its plot dramatizes how readers can impose patterns on disconnected signs.
Deutsches MuseumRelated: The museum uses this demonstration to make planetary motion visible.