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Pendulum clock

A pendulum clock is a clock that uses a swinging weight known as a pendulum as its timekeeping element. The pendulum is an approximate harmonic oscillator that swings in a time interval that depends on its length, and that resists swinging at other rates. From its invention in 1656 by Christiaan Huygens, inspired by Galileo Galilei, until the 1930s, the…

History, Gravity-swing pendulum & Mechanism

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Overview

History

Mechanism

Gravity-swing pendulum

Torsion pendulum

Escapement

Maintenance and Repair

Styles

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Pendulum clock

Nodes133
Edges132
Triples84
Avg. degree1.99
Density0.015038
Components1

How this topic connects Entity context

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Pendulum clock

Top relations

related to history · 11
Pendulum clock → Christiaan Huygens, December, Dutch, Galileo, Galileo Galilei, Horologium, Huygens, In, Salomon Coster, The, Vincenzo
related to Escapement · 10
Pendulum clock → Although, Different, During, Each, Gravity, In, It, Most, The, These
related to External links · 9
Pendulum clock → Aided Design, ClocksThe, Dutch, French Pendulum, Huygens's Pendulum Clock, Kinematic Simulation, Not So, Simple PendulumThe, The Invention
related to Styles · 9
Pendulum clock → Act, Banjo, Case, Experts, Morbier, Parliament, Pendulum, These, They
related to Torsion pendulum · 7
Pendulum clock → Also, Day, Rotation, Since, The, The Atmos, Torsion
related to Leveling and "beat" · 6
Pendulum clock → If, Older, Some, The, This, To
related to Local gravity · 6
Pendulum clock → Earth, For, Since, The, Thus, With
related to Temperature compensation · 6
Pendulum clock → An, By, Graham, Many, The, These
related to Maintenance and Repair · 3
Pendulum clock → As, Pendulum, Specific
related to Mechanism · 3
Pendulum clock → An, The, This

Important terminology Word statistics

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Important terminology

pendulum clocks clock used time period escapement accurate swing pendulums temperature called precision timekeeping rod also one wheel often swings

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Pendulum clockis aclock that uses a swinging weight known as a pendulum as its timekeeping element0.90text
used in mechanical Master clocks the power source is replaced by an electrically powered solenoid that provides the impulses to the pendulum by magnetic forceinstance ofThis rare complication was used before artificial lighting to check what time it was at night.In electromechanical pendulum clocks0.80text
and the escapement is replaced by a switch or photodetector that senses when the pendulum is in the right position to receive the impulseinstance ofThis rare complication was used before artificial lighting to check what time it was at night.In electromechanical pendulum clocks0.80text
steelinstance ofof parallel rods of high-thermal-expansion metal such as zinc or brass and low-thermal-expansion metal0.80text
the nickel steel alloy Invar or fused silicainstance ofsome of the highest precision scientific clocks had pendulums made of ultra-low-expansion materials0.80text
which required very little compensation for the effects of temperature.Atmospheric dragThe viscosity of the air through which the pendulum swings will vary with atmospheric pressureinstance ofsome of the highest precision scientific clocks had pendulums made of ultra-low-expansion materials0.80text
humidityinstance ofsome of the highest precision scientific clocks had pendulums made of ultra-low-expansion materials0.80text
and temperatureinstance ofsome of the highest precision scientific clocks had pendulums made of ultra-low-expansion materials0.80text
which required very little compensation for the effects of temperatureinstance ofsome of the highest precision scientific clocks had pendulums made of ultra-low-expansion materials0.80text
Pendulum clockrelated to EscapementThe0.60section
Pendulum clockrelated to EscapementIt0.60section
Pendulum clockrelated to EscapementMost0.60section

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