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Subdirectories of Clocks and Watches:
Categories related to Clocks and Watches : Time : Reference:
Business: Business Services: Supplies and Equipment: Time Recording and Management (92)
Computers: Software: Accounting: Time Tracking (109)
Computers: Software: Human Resources: Time Keeping Systems (53)
Science: Astronomy: Calendars and Timekeeping (54)
Websites on Clocks and Watches:
Biological Clocks Virtual Museum
This exhibit explores the inputs, outputs, and mechanisms of biological clocks with a primary focus on circadian rhythms.
Cesium Atomic Clocks
Kinds of cesium clocks, with pictures, plus a description of their operation and the science behind them.
Doug's Atomic Clocks
Details on Doug Hogarth's experiments with his atomic clock.
How Stuff Works: Atomic Clock
Concise history, background, definitions and operational information regarding atomic clocks.
How Stuff Works: Pendulum Clock
Concise description using drawings and animation to show the operation of a pendulum clock.
Smithsonian Institute - On Time
History of the clock and how Americans have measured time and been affected by it.
Watch Source Guide
Comprehensive source of information about watches. Includes sections on watch functioning, maintenance, articles and more.
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