MAKE A MEME View Large Image Atomic Clock009.jpg The sixth generation of atomic frequency standards at NBS NBS-6 is 6 meters long and provides a frequency reference with an accuracy better than one part in 10 3 When operated as a clock this device keeps time with an ...
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Keywords: Atomic Clock009.jpg The sixth generation of atomic frequency standards at NBS NBS-6 is 6 meters long and provides a frequency reference with an accuracy better than one part in 10 3 When operated as a clock this device keeps time with an accuracy of about 3 millionths of a second per year It is part of the NBS Atomic Time System which provides the national standard unit of time interval National Institute of Standards and Technology National Institute of Standards and Technology PD-USGov-NIST PD-USGov National Bureau of Standards National Institute of Standards and Technology Atomic clocks
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