Wristwatch/Timelines: Difference between revisions
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'''3500 BC(E)''' | '''3500 BC(E)''' | ||
* The Obelisk is created by Egyptians, and possibly previously by Sumerians. | |||
'''1500 BC(E)''' | '''1500 BC(E)''' | ||
* The Sundial/Shadow Clock built by Egyptians | |||
* One of the earliest water clocks is buried in the tomb of Egyptian pharaoh Ahemhotep I | |||
''' | '''500 - 100 BC(E)''' | ||
* Romans and the Greeks improve water clocks through mechanics (bells, gongs, doors -- ways to attempt flow regulation) | |||
* '''325 BC(E)''' - ''clepsydras' '' ("water theives") are used by the Greeks | |||
''' | '''30 BC(E)''' | ||
* Vitruvius describes 13 different types of sundial styles in Greece, Asia Minor, and Italy<ref>{{cite web|url=http://physics.nist.gov/GenInt/Time/early.html|title=Earliest Clocks|publisher=National Instute of Standards and Technology (NIST)|accessdate=2008-01-29}}</ref> | |||
''' | '''1 BC(E)''' | ||
* Andronikos constructs the ''Horologion'', the "Tower of the Winds" in Macedonia, Athens Marketplace | |||
''' | '''200 - 1300 CE (AD)''' | ||
* Chinese inventors modify clepsydras' to drive various mechcanisms. | |||
* '''725 CE (AD)''' - A water escapement is invented in the far east | |||
* '''900 CE(AD)''' - Pocket sundials are employed | |||
* '''1088 CE (AD)''' - Su Sung implements a water escapement in the "Su Sung clock tower". It is over 30 feet tall and ''very'' elaborately adorned. | |||
''' | '''1300s CE(AD)''' | ||
* Mechanical clocks appear in Italian cities, in towers. | |||
''' | '''1500 - 1510''' | ||
* Peter Henlein of Nuremberg invents the spring-powered clock. | |||
''' | '''1656''' | ||
* Christiaan Huygens (Dutch) invents the first pendulum clock. | |||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 12:30, 29 January 2008
3500 BC(E)
- The Obelisk is created by Egyptians, and possibly previously by Sumerians.
1500 BC(E)
- The Sundial/Shadow Clock built by Egyptians
- One of the earliest water clocks is buried in the tomb of Egyptian pharaoh Ahemhotep I
500 - 100 BC(E)
- Romans and the Greeks improve water clocks through mechanics (bells, gongs, doors -- ways to attempt flow regulation)
- 325 BC(E) - clepsydras' ("water theives") are used by the Greeks
30 BC(E)
- Vitruvius describes 13 different types of sundial styles in Greece, Asia Minor, and Italy[1]
1 BC(E)
- Andronikos constructs the Horologion, the "Tower of the Winds" in Macedonia, Athens Marketplace
200 - 1300 CE (AD)
- Chinese inventors modify clepsydras' to drive various mechcanisms.
- 725 CE (AD) - A water escapement is invented in the far east
- 900 CE(AD) - Pocket sundials are employed
- 1088 CE (AD) - Su Sung implements a water escapement in the "Su Sung clock tower". It is over 30 feet tall and very elaborately adorned.
1300s CE(AD)
- Mechanical clocks appear in Italian cities, in towers.
1500 - 1510
- Peter Henlein of Nuremberg invents the spring-powered clock.
1656
- Christiaan Huygens (Dutch) invents the first pendulum clock.
References
- ↑ Earliest Clocks. National Instute of Standards and Technology (NIST). Retrieved on 2008-01-29.