Reconstruction clock direction su sung joseph needham

The clocks

  • 2000 BCE

    Digital clock

    Digital clock
    A digital clock is a type of clock that displays the time digitally.
  • 1088 BCE

    1088

    1088
    The mechanical clock
    The first mechanical clocked used water. It was built by Sun Sung in China. It couldn´t measure minutes beacouse it only had an hour hand.
  • 1000 BCE

    The candle clock

    The candle clock
    A candle clock is a thin candle with consistently spaced marking that when burned, indicate the passage of periods of time.