Cavendish Experiment
DYNAMICS - Gravitational Forces
A Cavendish balance apparatus is used for the experimental verification of Newton's law of universal gravitation. This video shows a time lapse of the position of a laser beam which is reflected off of a mirror attached to a torsional balance which is set to oscillating by a change in position of two lead balls from equilibrium. The apparatus is arranged to ensure that the gravitational force of the lead balls dominates.
http://18.74.1.138/~bil/DemoPage/B/B5/B5.htm
http://books.google.com/books?id=O58mAAAAMAAJ&pg=PA59
http://en.wikipedia.org/wiki/Cavendish_experiment
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- October 28, 2008 11:05
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