How does one make a pendulum clock?

Answer

A pendulum clock is a clock that was invented in 1656 by Christiaan Huygens that uses a pendulum (a swinging weight), as its timekeeping element. The clock is normally made up of a long, thin rod made of wood or metal that terminates in a disk. These types of clock must be placed in a stationary position because any motion or accelerations will affect the motion of the pendulum, causing inaccuracies in the timekeeping.
Q&A Related to "How does one make a pendulum clock?"
( ′pen·jə·ləm ′kläk ) (horology) A clock having a swinging pendulum as the means for producing a regularly recurring action.
http://www.answers.com/topic/pendulum-clock-2
Because the period is based on the length of the pendulum, an increase in temperature (such as that as occurs in summer) will make the material, normally metal, in the pendulum expand
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The pendulum clock was the most accurate time keeper at that time in
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A pendulum clock in need of repair does not require a trip to the clockmaker and an expensive repair bill. A clock running too fast or too slow, a clock that stops running or runs
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