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- Q3675954 subject Q7138876.
- Q3675954 subject Q8719977.
- Q3675954 abstract "A Wilberforce pendulum, invented by British physicist Lionel Robert Wilberforce around 1896, consists of a mass suspended by a long helical spring and free to turn on its vertical axis, twisting the spring. It is an example of a coupled mechanical oscillator, often used as a demonstration in physics education. The mass can both bob up and down on the spring, and rotate back and forth about its vertical axis with torsional vibrations. When correctly adjusted and set in motion, it exhibits a curious motion in which periods of purely rotational oscillation gradually alternate with periods of purely up and down oscillation. The energy stored in the device shifts slowly back and forth between the translational 'up and down' oscillation mode and the torsional 'clockwise and counterclockwise' oscillation mode, until the motion eventually dies away.Despite the name, in normal operation it does not swing back and forth as ordinary pendulums do. The mass usually has opposing pairs of radial 'arms' sticking out horizontally, threaded with small weights that can be screwed in or out to adjust the moment of inertia to 'tune' the torsional vibration period.".
- Q3675954 thumbnail Wilberforce_pendulum_oscillation_modes.svg?width=300.
- Q3675954 wikiPageExternalLink watch?v=S42lLTlnfZc.
- Q3675954 wikiPageWikiLink Q11423.
- Q3675954 wikiPageWikiLink Q11652.
- Q3675954 wikiPageWikiLink Q165618.
- Q3675954 wikiPageWikiLink Q170475.
- Q3675954 wikiPageWikiLink Q184743.
- Q3675954 wikiPageWikiLink Q20702.
- Q3675954 wikiPageWikiLink Q3175877.
- Q3675954 wikiPageWikiLink Q379114.
- Q3675954 wikiPageWikiLink Q413.
- Q3675954 wikiPageWikiLink Q6555779.
- Q3675954 wikiPageWikiLink Q7138876.
- Q3675954 wikiPageWikiLink Q829522.
- Q3675954 wikiPageWikiLink Q8719977.
- Q3675954 comment "A Wilberforce pendulum, invented by British physicist Lionel Robert Wilberforce around 1896, consists of a mass suspended by a long helical spring and free to turn on its vertical axis, twisting the spring. It is an example of a coupled mechanical oscillator, often used as a demonstration in physics education. The mass can both bob up and down on the spring, and rotate back and forth about its vertical axis with torsional vibrations.".
- Q3675954 label "Wilberforce pendulum".
- Q3675954 depiction Wilberforce_pendulum_oscillation_modes.svg.