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  2. List of atomic clocks - Wikipedia

    en.wikipedia.org/wiki/List_of_atomic_clocks

    Download as PDF; Printable version; ... 18 cesium atomic clocks and 4 hydrogen maser clocks ... This page was last edited on 6 December 2024, ...

  3. Quantum logic clock - Wikipedia

    en.wikipedia.org/wiki/Quantum_logic_clock

    Both the Al-based quantum clock and the Hg-based optical atomic clock track time by the ion vibration at an optical frequency using a UV laser, that is 100,000 times higher than the microwave frequencies used in NIST-F1 and other similar time standards around the world. Quantum clocks like this are able to be far more precise than microwave ...

  4. Nuclear clock - Wikipedia

    en.wikipedia.org/wiki/Nuclear_clock

    Such a clock is expected to be more accurate than the best current atomic clocks by a factor of about 10, with an achievable accuracy approaching the 10 −19 level. [2] The only nuclear state suitable for the development of a nuclear clock using existing technology is thorium-229m, an isomer of thorium-229 and the lowest-energy nuclear isomer ...

  5. Atomic clock - Wikipedia

    en.wikipedia.org/wiki/Atomic_clock

    Atomic clocks are installed at sites of time signal radio transmitters. [113] They are used at some long-wave and medium-wave broadcasting stations to deliver a very precise carrier frequency. [114] Atomic clocks are used in many scientific disciplines, such as for long-baseline interferometry in radio astronomy. [115]

  6. Chip-scale atomic clock - Wikipedia

    en.wikipedia.org/wiki/Chip-scale_atomic_clock

    Commercial manufacturing of these atomic clocks began in 2011. [4] The CSAC, the world's smallest atomic clock, is 4 x 3.5 x 1 cm (1.5 x 1.4 x 0.4 inches) in size, weighs 35 grams, consumes only 115 mW of power, and can keep time to within 100 microseconds per day after several years of operation.

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Oscilloquartz - Wikipedia

    en.wikipedia.org/wiki/Oscilloquartz

    Oscilloquartz, a company of Adtran Inc., is a manufacturer of network and application timing technology including atomic clocks, grandmaster clocks, PTP slave and boundary clocks, GNSS clocks and Time Scale Systems. Oscilloquartz's portfolio also includes its Ensemble synchronization monitoring and management software.

  9. Daylight saving time is ending. Here's when to change your ...

    www.aol.com/daylight-saving-time-ending-heres...

    Sunday, Nov. 3, 2024, at 2 a.m. marks the end of daylight saving time (DST) — which lasts from March until November — and the moment when the smart devices around you will automatically switch ...

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