Pendulum With Mercury

Pendulum With Mercury

C004/7194 Rights Managed

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Credit: NYPL/SCIENCE SOURCE/SCIENCE PHOTO LIBRARY

Caption: 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.

Release details: Model release not required. Property release not required.

Keywords: accurate, art, artwork, bw, compensation, device, diagram, drawing, engraving, equipment, historic, historical, history, illustration, measuring, mercury, pendulum, precise, timekeeping

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