The Evolution of ClocksBy: Felicia Rosberg

The First Wrist Watch.

In 1504, Peter Helein invented the first Wrist Watch.

The First Minute Hand.In 1577, Jost Burji invented the first Minute Hand. The minute hand

does one lap of the clockface every 1 hour.

The First Pendulum.In 1656, Christian Huygens invented the first Pendulum. Grand dad

same day One lap 60 sec.

Thank you for watching!!!

The First Alarm Clock.In 1787, Greeks invented the first Alarm Clock.

The First Standard Time.In 1878, Sir. Sanford Fleming invented the First Standard Time. U put

on wall

The First Self – Wind Watch.In 1923, Swiss John Harwood invented The First Self – Wind Watch. The hands in the

watch are attached to a gear train mechanism that gears it self down.

In 1927, Warren Marrison invented the first Quartz. It was first made in Canada.

THE END!!!