Telling Time

By facebooker_10212461140977450
  • 3000 BCE

    The Egyptians and the Sun

    Egyptians used an obelisk, a shadow clock. The shadow showed the position of the sun and what time of day that would be.
  • 1300 BCE

    Mechanical Clock

    Mechanical clocks was a large step forward in time telling. It was the first to use physics in helping to measure time.
  • 725 BCE

    Water Clock

    In 725 Greeks and Egyptians designed a water clock. This used water to measure time.
  • 300 BCE

    Sundial

    The people of Babylonia had begun to use a sundial. The gnomon, a marker, cast a shadow on the dial as the suns position changed throughout the day.
  • 150 BCE

    Hourglass

    The hourglass was the first invention that kept track of time without using the position of the sun. The size dictated which measurement one was taking. If it was small it was for minutes.