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  2. La Crosse Technology - Wikipedia

    en.wikipedia.org/wiki/La_Crosse_Technology

    La Crosse Technology was founded in 1983 as a grandfather clock distribution company after the founder, Allan McCormick, returned from being stationed in Germany. [ 1 ] La Crosse Technology introduced the radio-controlled clock , commonly (but incorrectly) called an "atomic clock" after the extremely accurate timepiece behind the radio signal ...

  3. Projection clock - Wikipedia

    en.wikipedia.org/wiki/Projection_clock

    A projection clock (also called ceiling clock) is an analogue or digital clock equipped with a projector that creates an enlarged image of the clock face or display on any surface usable as a projection screen, most often the ceiling. [1] The clock can be placed almost anywhere if only the projected image must be seen.

  4. Atomic clock - Wikipedia

    en.wikipedia.org/wiki/Atomic_clock

    The development of atomic clocks has led to many scientific and technological advances such as precise global and regional navigation satellite systems, and applications in the Internet, which depend critically on frequency and time standards. Atomic clocks are installed at sites of time signal radio transmitters. [113]

  5. List of atomic clocks - Wikipedia

    en.wikipedia.org/wiki/List_of_atomic_clocks

    18 cesium atomic clocks and 4 hydrogen maser clocks Cs, H National Institute of Information and Communications Technology; Koganei, ...

  6. Caesium standard - Wikipedia

    en.wikipedia.org/wiki/Caesium_standard

    The first caesium clock was built by Louis Essen in 1955 at the National Physical Laboratory in the UK [1] and promoted worldwide by Gernot M. R. Winkler of the United States Naval Observatory. Caesium atomic clocks are one of the most accurate time and frequency standards, and serve as the primary standard for the definition of the second in ...

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    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. 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 ]

  9. E. Howard & Co. - Wikipedia

    en.wikipedia.org/wiki/E._Howard_&_Co.

    E. Howard & Co. was a clock and watch company formed by Edward Howard and Charles Rice in 1858, after the demise of the Boston Watch Company.The pair acquired some of the material and watches in progress, based upon a lien against the defunct company held by Rice, but they were unable to buy the existing factory or machinery, so they moved to Roxbury.

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