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  2. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    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. The vacuum tube oscillator was invented in 1912. [168]

  3. Clock - Wikipedia

    en.wikipedia.org/wiki/Clock

    A clock or chronometer is a device that measures and displays time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month, and the year. Devices operating on several physical processes have been used over the millennia .

  4. List of clocks - Wikipedia

    en.wikipedia.org/wiki/List_of_clocks

    Big Ben, London, is England's most famous clock, and arguably the World's. 'Big Ben' is the name of the bell, rather than the clock itself, but most people associate the name with the clock, which is officially known as the 'Great Westminster Clock'. The Eastgate Clock, Chester is one of the most photographed clocks in England outside London.

  5. Water clock - Wikipedia

    en.wikipedia.org/wiki/Water_clock

    Water clock. A display of two outflow water clocks from the Ancient Agora Museum in Athens. The top is an original from the late 5th century BC. The bottom is a reconstruction of a clay original. A water clock or clepsydra (from Ancient Greek κλεψύδρα (klepsúdra) ' pipette, water clock'; from κλέπτω (kléptō) 'to steal', and ...

  6. Salisbury Cathedral clock - Wikipedia

    en.wikipedia.org/wiki/Salisbury_cathedral_clock

    Salisbury Cathedral clock, restored. The Salisbury Cathedral clock is a large iron-framed tower clock without a dial, in Salisbury Cathedral, England.Thought to date from about 1386, it is a well-preserved example of the earliest type of mechanical clock, called verge and foliot clocks, and is said to be the oldest working clock in the world, although similar claims are made for other clocks.

  7. Clocks (song) - Wikipedia

    en.wikipedia.org/wiki/Clocks_(song)

    Composition. "Clocks" is an alternative rock and psychedelic rock song. [5] It features a repeating piano melody and a minimalist, atmospheric soundscape of synthesizer pads, drums, electric guitar, and bass guitar. [6] Martin applied an ostinato, as well as a descending scale on the piano chord progression, which switches from major to minor ...

  8. Clock of the Long Now - Wikipedia

    en.wikipedia.org/wiki/Clock_of_the_Long_Now

    The Clock of the Long Now, also called the 10,000-year clock, is a mechanical clock under construction that is designed to keep time for 10,000 years. It is being built by the Long Now Foundation. A two-meter prototype is on display at the Science Museum in London. As of June 2018, two more prototypes are on display at The Long Now Museum ...

  9. Pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Pendulum_clock

    A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is an approximate harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates. From its invention in 1656 by Christiaan ...

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