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For other types and uses of pendulums, see: Category:Pendulums; Mackerras Pendulum, a model devised by Malcolm Mackerras to predict election outcomes; Pendulum (torture device), a device allegedly used by the Spanish Inquisition; Pendulum Instruments, a Swedish manufacturer of scientific instruments
"Simple gravity pendulum" model assumes no friction or air resistance. A pendulum is a device made of a weight suspended from a pivot so that it can swing freely. [1] When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.
This is a list of Foucault pendulums in the world: Artistic rendition (highly exaggerated) of a Foucault pendulum showing that the Earth is not stationary, but rotates. Wikimedia Commons has media related to Foucault pendulums .
Air resistance damps the oscillation, so some Foucault pendulums in museums incorporate an electromagnetic or other drive to keep the bob swinging; others are restarted regularly, sometimes with a launching ceremony as an added attraction. Besides air resistance (the use of a heavy symmetrical bob is to reduce friction forces, mainly air ...
This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (December 2022) (Learn how and when to remove this message)
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is an approximate harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates.
Hoops have been a popular toy across a variety of cultures since antiquity.. This article is a list of toys, toy sets, and toy systems; the toys included are widely popular (either currently or historically) and provide illustrative examples of specific types of toys.
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3579 S High St, Columbus, OH · Directions · (614) 409-0683