22. Activity

  • 3499 BCE

    Obelisk

  • 2000 BCE

    Water clock

  • 1500 BCE

    Sundial

  • 70

    Candle clock

  • 1083

    The mechanical clock

    The The mechanical clock was invented in 1088 an invented in china. The invented name is Su sung, the first mechanical clock used water it couldn't measureb minutes because in only had an hour hand
  • 1088

    Mechanicla clock

  • 1300

    Sandglass

  • 1500

    Harrison timepiece

  • Pendulum clock

  • Digital clock

  • Atomic clock