Time Throughout the Ages

By Emie_Jay777
  • 3500 BCE

    Obelisks

    An obelisk was being used to telling time using the shadow cast by the sun.
  • 1500 BCE

    Sundial

    The Egyptian's created a sundial or shadow clock to tell times of day. There clock had 10 sections for hours.
  • 600 BCE

    Merkhet

    Ancient Egyptians used this astronomical tool to monitor night time hours passing by.
  • 325 BCE

    Water Clocks

    Ancient Greece began using water clocks to calculate a time passing by.

  • Pendulum Clock

    Created by Dutch Scientist Christian Huygens, the pendulum clock had a natural oscillation and had a margin of error of 1 minute a day. This was the beginning of mechanical clocks.

  • Pocket Watch

    John Harrison invented a small clock. The pocket watch would only lose 5 seconds every 6 and a half weeks.

  • Mechanical Clock Reproduction

    Eli Terry created machines to mass reproduce the parts of clocks exactly the same.

  • Wristwatches

    The wristwatch was invented and was used by men in the first world war.

  • Digital Alarm Clock

  • Quartz Crystal Clock

    The clock oscillated using quartz and was created by Walter G. Cady.

  • Atomic Clock

    This clock was created by scientist and creates time through the oscillation of atoms and is the most accurate clock.