CLOCKS AND WATCHES

Where would we be without our clocks and watches? We'll explore the inner-workings of timepieces as well as look at some specifics, such as smart watches, Indiglo, digital watches and pendulum clocks.
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How do radio-controlled clocks set themselves to the atomic clock in Colorado?

Many radio-controlled clocks automatically sync their time with the atomic clock in Boulder, Colorado. How do they do it?

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