A pendulum is a body suspended from a fixed support so that it swings freely back and forth under the influence of gravity. Pendulum may also refer to: Devices Pendulum (mathematics), the mathematical principles of a pendulum Pendulum clock, a kind of clock that uses a pendulum to keep time Pendulum car, an experimental tilting train Foucault pendulum, a pendulum that demonstrates the Earth's rotation Spherical pendulum Spring pendulum Conical pendulum Centrifugal pendulum absorber, torsional vibration reduction by using a pendulum principle 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 Music Pendulum (Australian band), an Australian electronic rock group formed in 2002 Pendulum (ambient band), an Australian house music group formed in 1994 Albums Pendulum (Broadcast EP), and its title track Pendulum (Creedence Clearwater Revival album) Pendulum (Dave Liebman album), and its title track Pendulum (Eberhard Weber album), and its title track Pendulum (Lowen & Navarro album), and its title track Pendulum (Tara Simmons EP), and its title track The Pendulum, a comic book miniseries based on Insane Clown Posse's Dark Carnival universe, and associated songs and album Songs "Pendulum" (song), by FKA Twigs "Pendulum", by Embodyment from the album The Narrow Scope of Things "Pendulum", by Katy Perry from the album Witness "Pendulum", by Phinehas from the album Thegodmachine "Pendulums", by Sarah Harmer from the album All of Our Names "Penduli Pendulum", by Bobbie Gentry from The Delta Sweete "The Pendulum Song", song written by Al Hoffman and John Murray Pendulum Music, a composition by Steve Reich involving microphones swinging above speakers like pendulums Books and periodicals Pendulum, by John Christopher, 1968 The Pendulum, by Annie S. Swan, 1972 Pendulum, by A. E. Van Vogt, 1978 Pendulum, by Adam Hamdy, 2017 The Pendulum, a student newspaper at Elon University The Pendulum, a publication devoted to radiesthesia Film Pendulum (1969 film), an American neo noir film starring George Peppard Pendulum, a 2001 film starring Rachel Hunter and James Russo Pendulum (2014 film), an Indian neo noir Other Pendulum, a trade name for the preemergent herbicide pendimethalin Pendulum, several types of Digimon virtual pets Mackerras pendulum, an electoral tool for describing the swing required for a change of government See also