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The mechanical clock

By Gillen_2008
  • C
    Nov 30, 1000

    C

    The candle clock appeared at first time at China in a poem of You Jiangu and then, were used at the European churches
  • Mechanical clock
    May 25, 1088

    Mechanical clock

    Su Sung create the first mechanical clock with water in China at the year 1088 A.D.
  • Atomic clock

    Atomic clock

    The first atomic clock was invented by Willard Frank Libby in the U.S.A. fenomeno oso erregular bati buruzko ideietan oinarrituta: erresonantzia magnetiko molekularra eta atomikoa