enow.com Web Search

  1. Ads

    related to: the most accurate pendulum clock

Search results

  1. Results from the WOW.Com Content Network
  2. Pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Pendulum_clock

    The most accurate pendulum clock was the Shortt-Synchronome clock, a complicated electromechanical clock with two pendulums developed in 1923 by W.H. Shortt and Frank Hope-Jones, which was accurate to better than one second per year. A slave pendulum in a separate clock was linked by an electric circuit and electromagnets to a master pendulum ...

  3. Shortt–Synchronome clock - Wikipedia

    en.wikipedia.org/wiki/Shortt–Synchronome_clock

    On the left is the primary pendulum in its vacuum tank. The Shortt–Synchronome free pendulum clock is a complex precision electromechanical pendulum clock invented in 1921 by British railway engineer William Hamilton Shortt in collaboration with horologist Frank Hope-Jones, [1] and manufactured by the Synchronome Company, Ltd., of London. [2]

  4. Riefler escapement - Wikipedia

    en.wikipedia.org/wiki/Riefler_escapement

    The Riefler escapement is a mechanical escapement for precision pendulum clocks invented and patented [1] by German instrument maker Sigmund Riefler in 1889. [2] It was used in the astronomical regulator clocks made by his German firm Clemens Riefler from 1890 to 1965, [3] which were perhaps the most accurate all-mechanical pendulum clocks made.

  5. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The most accurate pendulum clocks were controlled electrically. [166] The Shortt–Synchronome clock, an electrical driven pendulum clock designed in 1921, was the first clock to be a more accurate timekeeper than the Earth itself. [167] A succession of innovations and discoveries led to the invention of the modern quartz timer.

  6. Physicists construct the most accurate clock the world has ...

    www.aol.com/news/2013-05-29-worlds-most-accurate...

    Calling a clock the most accurate ever may sound like hyperbole, but physicists at the National Institute of Standards and Technology in Boulder, Colorado have built a pair of devices that can ...

  7. Escapement - Wikipedia

    en.wikipedia.org/wiki/Escapement

    The most accurate commercially produced mechanical clock was the electromechanical Shortt-Synchronome free pendulum clock invented by W. H. Shortt in 1921, which had an uncertainty of about 1 second per year.

  1. Ads

    related to: the most accurate pendulum clock