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300
Sundial- 300
Around the 300 the sundial clocks was invented. The sundial clock was invented by the Babylonians, but was kept track of, and 'modernized' it were the Egyptions. -
500
Water Clocks-500
Water clocks were invented in 500 B.C. It was used by the Egyptions but invented by Archimedes, becasue he wanted to make it accurate, but bcasue they were water clocks, it didnt work out that way. -
Nov 16, 1400
Mechanical Clocks- 1400's
<a href='http://http://www.which-clocks.com/history.html' Mechanical Clocks were built in the 1400's in Europe using a balnce wheel. -
Galileo Galilei - 1583
In 1583, Galillo Galilei, helped with invention of clocks, becasue he recoginized that the ferquencyof pendulum swing depends on the length of Mechanical Clocks -
Telegraph- 1839
<a href='http://http://www.which-clocks.com/history.html' In 1839, the telegraph was invented, which helped instanst transmission of time signals. -
Radio time Signal- 1905
<a href='http://www.which-clocks.com/history.html' In 1905, Wahington D.C helped ships find their longitude with the help of Radiod time signals -
1st Atomic Clock-1949
The National Bureau invented the 1st Atomic clock in 1949. -
Time
By 1998, everyone had or wanted a watch, becasue they became so popular. Around 500,000 watches are sold every day -
Period: to
Invention of Clocks
