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Diagram showing operation of temperature compensated "gridiron" pendulum, invented in 1726 by
British clockmaker John Harrison. The pendulum uses rods of a high thermal expansion metal, zinc
144:, so the overall pendulum doesn't change in length with temperature changes. Therefore the period of swing of the pendulum, and the rate of the clock, are constant with temperature.
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1039:{{Information |Description=Temperature compensated "banjo" pendulum |Source=self-made |Date=January 26, 2008 |Author=
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Click on a date/time to view the file as it appeared at that time.
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I, the copyright holder of this work, release this work into the
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copyrighted, dedicated to the public domain by copyright holder
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copyrighted, dedicated to the public domain by copyright holder
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Created for and referenced from the
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In some countries this may not be legally possible; if so:
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released into the public domain by the copyright holder
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released into the public domain by the copyright holder
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https:\/\/commons.wikimedia.org\/wiki\/user:Leonard_G.
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Commons is a freely licensed media file repository.
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