Can any one describe a Pendulum Clock with Physics terms?
A clock, any clock, consists of a timing device like a pendulum or a quartz crystal or one of those clocks with two wee balls suspended from a wire rotating backwards and forwards, some way to feed energy into it to keep it going and some way to count the number of swings, vibrations or whatever. A pendulum clock consists of a pendulum to keep time, a falling weight or spring to supply energy to keep it going, a ratchet wheel which advances at a steady speed set by the pendulum, and some gear wheels which turn the hands of the clock forward.
