Clock Wallpaper

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A clock is an instrument to indicate, keep, and co-ordinate time. The word clock is derived ultimately from the Celtic words clagan and clocca meaning "bell". A silent instrument missing such a striking mechanism has traditionally been known as a timepiece.

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Fun Facts : The timekeeping element in every modern clock is a harmonic oscillator, a physical object that vibrates or oscillates repetitively at a precisely constant frequency.

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