Scientists work on NIST's new atomic clock, NIST-F4 (IMAGE)

National Institute of Standards and Technology (NIST)

Scientists work on NIST's new atomic clock, NIST-F4

Caption

NIST scientists Greg Hoth (left) and Vladislav Gerginov work on NIST-F4, NIST’s new cesium fountain clock.

Credit

R. Eskalis/NIST

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License

Public Domain

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