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  2. J. B. Joyce & Co - Wikipedia

    en.wikipedia.org/wiki/J._B._Joyce_&_Co

    J. B. Joyce & Co, clockmakers, were founded in Shropshire in England. The company claim to be the oldest clock manufacturer in the world, originally established in 1690, [1] and have been part of the Smith of Derby Group since 1965. [2] The claim is challenged by another English firm of clockmakers, Thwaites & Reed, who claim to have been in ...

  3. 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]

  4. All About Your Body Clock - WebMD

    www.webmd.com/.../ss/slideshow-body-clock

    1 /17. Your body has tiny clocks all over the place to keep everything running smoothly. But the master one in your brain calls the shots and drives your circadian rhythm. That’s your 24-hour ...

  5. Astronomical clock - Wikipedia

    en.wikipedia.org/wiki/Astronomical_clock

    The Chartres astronomical clock [ fr] in Chartres Cathedral is an astrolabe clock, installed in 1528. It was overhauled, its mechanism replaced by an electric mechanism, in 2009. Haguenau. The facade of the Musée alsacien displays an astronomical clock, a modern copy of the clock of the Ulm Rathaus.

  6. Doomsday Clock - Wikipedia

    en.wikipedia.org/wiki/Doomsday_Clock

    The Doomsday Clock is a symbol that represents the likelihood of a human-made global catastrophe, in the opinion of the members of the Bulletin of the Atomic Scientists. Maintained since 1947, the clock is a metaphor, not a prediction, for threats to humanity from unchecked scientific and technological advances. That is, the time on the clock ...

  7. AOL Mail

    mail.aol.com

    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. Atomic clock - Wikipedia

    en.wikipedia.org/wiki/Atomic_clock

    This scale allows for time comparisons between different clocks in the laboratory. These atomic time scales are generally referred to as TA(k) for laboratory k. Coordinated Universal Time (UTC) is the result of comparing clocks in national laboratories around the world to International Atomic Time (TAI), then adding leap seconds as necessary ...

  9. Chinese Body Clock: About, Benefits, Research - Healthline

    www.healthline.com/health/chinese-body-clock

    For example, according to the Chinese body clock, the lungs peak between 3 a.m. and 5 a.m. Getting up early for a morning exercise during this time may help you maximize the potential of these organs.

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