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The Amazing Atomic Clock

What are atomic clocks? And why do we need them?
Topic: Physics + MathPhysics & MathNova

Dr. Steve Jefferts of the National Institute of Standards and Technology in Boulder, Colorado is an expert on how we measure time. In fact, he co-developed one of the world's most accurate atomic clocks. But why do we need such accuracy? Learn why atomic clocks are so important in our everyday lives.

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