standard, is a cesium fountain atomic clock developed at the NIST laboratories in Boulder, Colorado.. You also frequently hear about atomic clocks in ads for the new clocks that automatically synchronize themselves with the atomic clock in Boulder, Colorado.. The REAL time! If you have a JAVA-capable browser, you can view continuously updated time on our Official Government Time page:. The hydrogen maser is an essential atomic clock for radio astronomy, time-keeping, Fuqua Homes - and spacecraft navigation, and is used in precision tests of gravitation,. The REAL time! If you have a JAVA-capable

browser, you can view continuously updated time on our Official Government Time page:. In this lab, the NIST-F1 cesium fountain atomic clock provides a time reference with a precision of

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