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torsion pendulum
noun
, Horology.
- a pendulum the weight of which is rotated alternately in opposite directions through a horizontal plane by the torsion of the suspending rod or spring: used for clocks intended to run a long time between windings.
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Word History and Origins
Origin of torsion pendulum1
First recorded in 1880–85
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Example Sentences
The period of a torsion pendulum being much longer than a vibrating pendulum of the same length, the time of running is longer.
From Project Gutenberg
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