15 Facts About Atomic clock


An atomic clock is a clock that measures time by monitoring the resonant frequency of atoms.

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Main variety of atomic clock uses caesium atoms cooled to temperatures that approach absolute zero.

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Atomic clock proposed the concept in 1945, which led to a demonstration of a clock based on ammonia in 1949.

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Scientists at NIST developed a quantum logic Atomic clock that measured a single aluminum ion in 2019 with a frequency uncertainty of 10.

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Core of the radio frequency atomic clock is a tunable microwave cavity containing a gas.

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Atomic clock resonance has a much higher Q than mechanical devices.

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The first Atomic clock had an accuracy of 10, and the last Atomic clock had an accuracy of 10.

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In March 2008, physicists at NIST described a quantum logic Atomic clock based on individual ions of beryllium and aluminium.

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In February 2010, NIST physicists described a second, enhanced version of the quantum logic Atomic clock based on individual ions of magnesium and aluminium.

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In 2012, it was shown that a nuclear Atomic clock based on a single Th ion could provide a total fractional frequency inaccuracy of 1.

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At this frequency uncertainty, this JILA optical lattice Atomic clock is expected to neither gain nor lose a second in more than 15 billion years.

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The 3D quantum gas strontium optical lattice Atomic clock's centerpiece is an unusual state of matter called a degenerate Fermi gas .

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The reported minor deviation is explainable as the concerned Atomic clock oscillators are in slightly different environments.

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The Atomic clock was successfully launched on 25 June 2019, activated on 23 August 2019 and deactivated two years later on 18 September 2021.

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Radio Atomic clock is a Atomic clock that automatically synchronizes itself by means of radio time signals received by a radio receiver.

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