Pendulum

A pendulum is a device made of a weight suspended from a pivot so that it can swing freely. 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. When released, the restoring force acting on the pendulum's mass causes it to oscillate about the equilibrium position, swinging back and forth. The time for one complete cycle, a left swing and a right swing, is called the period. The period depends on the length of the pendulum and also to a slight degree on the amplitude, the width of the pendulum's swing. Pendulums were widely used in early mechanical clocks for timekeeping. The SI unit of the period of a pendulum is the second (s). The regular motion of pendulums was used for timekeeping and was the world's most accurate timekeeping technology until the 1930s. The pendulum clock invented by Christiaan Huygens in 1656 became the world's standard timekeeper, used in homes and offices for 270 years, and achieved accuracy of about one second per year before it was superseded as a time standard by the quartz clock in the 1930s. Pendulums are also used in scientific instruments such as accelerometers and seismometers. Historically they were used as gravimeters to measure the acceleration of gravity in geo-physical surveys, and even as a standard of length. The word pendulum is Neo-Latin, from the Latin pendulus, meaning 'hanging'.

drum-and-bass

Inertia - 2025-08-22T00:00:00.000000Z

Radio Hits - Die 80er 90er 2000er und das Beste von Heute - 2023-08-24T00:00:00.000000Z

Top Hits 2010-2020 - 2022-06-10T00:00:00.000000Z

Sound of Madness - Modern Rock Hits - 2022-04-22T00:00:00.000000Z

Elemental (The Remixes) - 2021-11-19T00:00:00.000000Z

10's UK Hits - 2021-03-19T00:00:00.000000Z

Summer Heat - 2020-05-22T00:00:00.000000Z

The Reworks - 2018-06-29T00:00:00.000000Z

Fabio & Grooverider: 25 Years of Drum & Bass - 2016-04-27T00:00:00.000000Z

Witchcraft - 2010-07-16T00:00:00.000000Z

Immersion - 2010-05-21T00:00:00.000000Z

Against the Grain Classics - 2010-05-07T00:00:00.000000Z

Live at Brixton Academy - 2009-06-12T00:00:00.000000Z

Showdown - 2009-01-01T00:00:00.000000Z

A to Z: Bestival 2008 (Compiled by Rob da Bank) - 2008-09-01T00:00:00.000000Z

The Other Side - 2008-07-07T00:00:00.000000Z

In Silico - 2008-05-09T00:00:00.000000Z

Hold Your Colour - 2007-05-19T00:00:00.000000Z

Hold Your Colour (Deluxe) - 2007-05-19T00:00:00.000000Z

Their Law The Singles 1990 - 2005 - 2005-10-17T00:00:00.000000Z

Guiding Lights - 2025-08-19T00:00:00.000000Z

Cannibal - 2025-07-25T00:00:00.000000Z

Save The Cat - 2025-05-27T00:00:00.000000Z

Sound of You - 2025-04-11T00:00:00.000000Z

Napalm - 2024-08-21T00:00:00.000000Z