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The Atomic Secrets of Accurate Time Keeping

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The Atomic Secrets of Accurate Time Keeping

The Atomic Secrets of Accurate Time Keeping

The Atomic Secrets of Accurate Time Keeping

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  • Transcript

Clocks measure time. But have you ever wondered how they do it? For this week's Science Out Of The Box, the answer can be found at the U.S. Naval Observatory's master clock facility. That's where the Navy fires a microwave beam at an atom to keep time.