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How Clocks Work

Timepiece Image Gallery Clocks come in many different forms, from quartz watches to atomic clocks. Take a peek under the hood and learn what makes each kind tick. See more pictures of timepieces.

Clocks are one of the very first complex machines created by humans. Initially they all had pendulums and gears, but now they come in many different forms, from quartz watches to atomic clocks! Here are the HowStuffWorks articles that explain how they all work:

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