Wristwatch/Timelines: Difference between revisions
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===3500 BC(E)=== | |||
* The Obelisk is created by Egyptians, and possibly previously by Sumerians. | * The Obelisk is created by Egyptians, and possibly previously by Sumerians. | ||
===1500 BC(E)=== | |||
* The Sundial/Shadow Clock built by Egyptians | * The Sundial/Shadow Clock built by Egyptians | ||
* One of the earliest water clocks is buried in the tomb of Egyptian pharaoh Ahemhotep I | * 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) | * 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 | * '''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> | * 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 | * 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. | * Chinese inventors modify clepsydras' to drive various mechcanisms. | ||
* '''725 CE (AD)''' - A water escapement is invented in the far east | * '''725 CE (AD)''' - A water escapement is invented in the far east | ||
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* '''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. | * '''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. | * Mechanical clocks appear in Italian cities, in towers. | ||
===1500 - 1510=== | |||
* Peter Henlein of Nuremberg invents the spring-powered clock. | * Peter Henlein of Nuremberg invents the spring-powered clock. | ||
===1656=== | |||
* Christiaan Huygens (Dutch) invents the first pendulum clock. | * Christiaan Huygens (Dutch) invents the first pendulum clock. | ||
Revision as of 11:31, 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.