Pendulum With Mercury
Pendulum with mercury compensation (carrying a glass cylinder almost full of mercury) allowing for more accurate timekeeping. The upward expansion of the mercury counterbalances the downward expansion (from heat) of the pendulum
Picture No
10799422
Media ID
47599854
Size
1557px x 7473px
(1.5MB)
Credit
©Photo Researchers / Mary Evans Picture Library
Source
Photo Researchers
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Restrictions Only for Ireland and United Kingdom
Accurate Compensation Diagram Measuring Mercury Pendulum Precise Timekeeping
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