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File:Wilberforce pendulum.jpg

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Description
English: Photo of a Wilberforce pendulum, a coupled mechanical oscillator consisting of a weight suspended from a helical spring that is free to both bob up and down and rotate back and forth about its vertical axis with torsional vibrations. It is mounted on a stand for use in physics demonstrations. The weight consists of two adjustable masses mounted on a horizontal threaded rod that can be screwed in or out to adjust the torsional vibration period of the weight.
Date
Source Downloaded 2009-10-18 from W. E. Dalby (Feb. 10, 1908) Balancing of Reciprocating Engines in Proceedings of the Institution of Mechanical Engineers, 1908, Part 1, London Plate 9, Fig. 5, following p. 550, on Google Books
Author W. E. Dalby
Permission
(Reusing this file)		 Public domain: Dalby died in 1936

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Date/TimeThumbnailDimensionsUserComment
current08:38, 18 October 2009Thumbnail for version as of 08:38, 18 October 2009263 × 730 (21 KB)Chetvorno{{Information |Description={{en|Photo of a Wikipedia:Wilberforce pendulum, a coupled mechanical oscillator consisting of a weight suspended from a helical spring that is free to both bob up and down and rotate back and forth with torsional vibrations

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