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Gridiron pendulum

A gridiron pendulum was a temperature-compensated clock pendulum invented by British clockmaker John Harrison around 1726. It was used in precision clocks. In ordinary clock pendulums, the pendulum rod expands and contracts with changes in temperature. The period of the pendulum's swing depends on its length, so a pendulum clock's rate varied with…

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Gridiron pendulum

Nodes30
Edges29
Triples17
Avg. degree1.93
Density0.066667
Components1

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Gridiron pendulum

Top relations

related to Disadvantages · 7
Gridiron pendulum → By, George Graham, Later, Scientists, The, Therefore, This
related to Compensation · 4
Gridiron pendulum → Delta, From, It, Within
related to How it works · 4
Gridiron pendulum → By, Harrison's, John Smeaton, The

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Important terminology

pendulum rods steel gridiron rod expansion temperature length zinc brass clocks bob displaystyle two used thermal changes period clock high

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
invarinstance ofthe highest-precision astronomical regulator clocks used pendulum rods of low thermal expansion materials0.80text
fused quartzinstance ofthe highest-precision astronomical regulator clocks used pendulum rods of low thermal expansion materials0.80text
Gridiron pendulumrelated to CompensationWithin0.60section
Gridiron pendulumrelated to CompensationIt0.60section
Gridiron pendulumrelated to CompensationFrom0.60section
Gridiron pendulumrelated to CompensationDelta0.60section
Gridiron pendulumrelated to DisadvantagesScientists0.60section
Gridiron pendulumrelated to DisadvantagesThe0.60section
Gridiron pendulumrelated to DisadvantagesThis0.60section
Gridiron pendulumrelated to DisadvantagesLater0.60section
Gridiron pendulumrelated to DisadvantagesTherefore0.60section
Gridiron pendulumrelated to DisadvantagesGeorge Graham0.60section

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