What are the pendulum clock?

The pendulum is a relatively long thin rod made of wood or metal that ends on the disk. In the earliest versions of the shuttle clock, the disk was weighed on the pendulum rod as it moved from one side to the other. Eskapement devices that converted the movement of the gear to the pendulum swing, allowed the energy to go into the pendulum to overcome the friction so that it could continue to swing. Later versions of the shuttle hours were powered by strands and finally batteries. The Dutch mathematician and astronomer Christiaan Huygens is a man who is actually credited to the invention of the shuttle in 1656. With the least 10 seconds. In 1721, George Graham increased the clock accuracy of the pendulum by reducing error to one second a day. He achieved this by making modifications of the changes in the length of the pendulum caused by temperature changes.

Siegmund Riefler and W.H. Short increased the accuracy of the Kvadad clockLa even more. Riefler's clock, which used the escape that improved in 1889, was widely used in astronomical observatories and were accurate for a hundred seconds a day. The Short Clock, presented in 1921, operated on the two-Skum slave and the main principle and replaced Riefler as the lessons for the Observatory.

Quartz Clock technology has been introduced in the 1920s and has become the standard of time proceedings in the coming decades. The pendulum clock came to take over the status of collector's items, Oban its antique and more modern forms. The three common types of shuttle clocks that could appear in the collection are Cuckoo Clock, grandfather's clock and cloak clock. For cuckoo clocks and grandfather, the pendulum usually swings twice every second and once every two seconds.