Science & technology

Pendulum clock

1656

The pendulum clock was invented by the Dutch scientist Christiaan Huygens at the end of 1656 and patented in the following year, and the first examples were made by the clockmaker Salomon Coster in The Hague. Huygens used the regular swing of a pendulum, whose period depends on its length, to control the clock's escapement. This made clocks much more accurate than the older mechanisms, reducing the error from about fifteen minutes a day to a few seconds. Galileo had studied pendulums and had considered the idea earlier. Pendulum clocks remained the most accurate timekeepers for almost three centuries, until quartz clocks, and helped science, navigation and daily life.

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This moment belongs to the Early modern world (1500 CE to 1760 CE), voyages, printing and new ideas. You can also browse everything in the 17th century.