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2. 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.

3. List of atomic clocks - Wikipedia

   en.wikipedia.org/wiki/List_of_atomic_clocks

   This is a list of some experimental laboratory atomic clocks worldwide. This list is incomplete; you can help by adding missing items. (March 2013) Name

4. Atomic clock - Wikipedia

   en.wikipedia.org/wiki/Atomic_clock

   Atomic clocks are installed at sites of time signal radio transmitters. [103] They are used at some long-wave and medium-wave broadcasting stations to deliver a very precise carrier frequency. [104] Atomic clocks are used in many scientific disciplines, such as for long-baseline interferometry in radio astronomy. [105]

5. The 'best ever clock' is now 40 percent off on Amazon! - AOL

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   This big, bright clock serves so many needs with time, day and date. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 ...

6. ‘I can read it without my glasses on’: Amazon shoppers are ...

   www.aol.com/lifestyle/best-clock-ever-now-sale...

   This big, bright clock serves so many needs with time, day and date. ‘I can read it without my glasses on’: Amazon shoppers are loving this jumbo-screen clock — and it’s on sale right now ...

7. Quantum logic clock - Wikipedia

   en.wikipedia.org/wiki/Quantum_logic_clock

   A quantum clock is a type of atomic clock with laser cooled single ions confined together in an electromagnetic ion trap. Developed in 2010 by physicists at the U.S. National Institute of Standards and Technology , the clock was 37 times more precise than the then-existing international standard. [ 1 ]

8. The best sunrise alarm clocks of 2025 - AOL

   www.aol.com/lifestyle/best-sunrise-alarm-clocks...

   Other cool features of this mid-priced sunset alarm clock are the variable duration of the sunrise or sunset simulations (20, 30, or 45 minutes), a light-sensitive clock display that brightens ...

9. Symmetricom - Wikipedia

   en.wikipedia.org/wiki/Symmetricom

   Symmetricom was one of the only two world’s commercial supplier of cesium atomic clocks - the other one is Oscilloquartz, in Switzerland. By weighted average, Symmetricom atomic clocks contributed over 90% of UTC (Coordinated Universal Time, the world time standard).