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  2. Atmos clock - Wikipedia

    en.wikipedia.org/wiki/Atmos_clock

    To run the clock on this small amount of energy, everything in the Atmos must be as friction-free as possible. For timekeeping it uses a torsion pendulum, which consumes less energy than an ordinary pendulum. The torsion pendulum has a period of precisely one minute; thirty seconds to rotate in one direction and thirty seconds to return to the ...

  3. Torsion pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Torsion_pendulum_clock

    A torsion pendulum clock, more commonly known as an anniversary clock or 400-day clock, is a mechanical clock which keeps time with a mechanism called a torsion pendulum. This is a weighted disk or wheel, often a decorative wheel with three or four chrome balls on ornate spokes, suspended by a thin wire or ribbon called a torsion spring (also ...

  4. Template:Clock - Wikipedia

    en.wikipedia.org/wiki/Template:Clock

    This template does not put a working clock on your page. This template adds a clock that shows the time when the page was last updated (or re-cached) and will not update each minute. If you do want a clock that constantly updates, then go to your Preferences and enable the item:

  5. Timesheet - Wikipedia

    en.wikipedia.org/wiki/Timesheet

    An ADP Model 4500 timecard reader. Factory workers may often have a "time card" (also known as punch card) and "punch in" by inserting their card into an automatic timestamp machine (called a time clock or bundy clock) when starting and ending their work shift, though other card technologies such as swipe cards have become more prevalent.

  6. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The English word clock first appeared in Middle English as clok, cloke, or clokke. The origin of the word is not known for certain; it may be a borrowing from French or Dutch, and can perhaps be traced to the post-classical Latin clocca ('bell'). 7th century Irish and 9th century Germanic sources recorded clock as meaning 'bell'. [74]

  7. Striking clock - Wikipedia

    en.wikipedia.org/wiki/Striking_clock

    The Kremlin Clock on the Moscow Kremlin rings in 2012.. The most basic sort of striking clock simply sounds a bell once every hour; this is called a passing strike clock. . Passing strike was simple to implement mechanically; all that must be done is to attach a cam to a shaft that rotates once per hour; the cam raises and then lets a hammer fall that strikes t