Not until somewhat recently (that is, in terms of human history) did people find a need for knowing the time of day. As best we know, 5000 to 6000 years ago great civilizations in the Middle East and North Africa began to make clocks to a...
http://wiki.answers.com/Q/When_was_the_first_clock_inve...
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Inventions question: Who invented the clock? Cogitating Question There are various opinions about the first civilization to have measured time. Some say the Hindus, some Greeks, some Egyptians, etc. It ... In the 1920's the first Quartz were invented. This works by applying a certain voltage and pressure inside the clock.
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wiki.answers.com/Q/Who_invented_the_clock
wiki.answers.com/Q/Who_invented_the_clock
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Another Egyptian shadow clock or sundial, possibly the first portable timepiece, came into use around 1500 BCE. This device divided a sunlit day into 10 parts plus two "twilight hours" in the morning and evening. ... The hemicycle, said to have been invented about 300 BCE, removed the useless half of the hemisphere to give...
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physics.nist.gov/GenInt/Time/early.html
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The invisible invention of the clock ... In other programs, we talk about what a fool's errand it is to name the first inventor of anything. But since the exception really does prove the rule, let's raise yet another priority question; let's ask when the first mechanical clock was invented.
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www.uh.edu/engines/epi1506.htm
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No one know exactly who invented the first mechanical clock, or just where or when, though most experts agree that by 1300, mechanical clocks were ringing out from towers and cathedrals across Europe.
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www.hamstation.com/among_the_first_time.htm
www.hamstation.com/among_the_first_time.htm
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In 1656, 'Christian Huygens' (Dutch scientist), made the first 'Pendulum clock', with a mechanism using a 'natural' period of ... 'George Graham', in 1721, invented a design with the degree of accuracy to 'one second a day' by compensating for changes in the pendulum's length caused by temperature variations.
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www.mystical-www.co.uk/time/clocks.htm
www.mystical-www.co.uk/time/clocks.htm
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Before the concept of dividing time into hours, minutes and seconds was developed, the people used to have sun dial clocks that estimated what part of the day it is by the shadows cast by the sun. Then the Egyptians came up with water clock...
http://www.blurtit.com/q533634.html
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The clock is one of the oldest human inventions to enable us to judge how long a process has run. As the seasons and the phases of the moon can be used to measure the passage of longer periods of time, shorter processes had to be used to me...
http://www.blurtit.com/q944943.html
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This page tells what you the history of clocks. ... Before pendulum clocks were invented, Peter Henlein of Germany invented a spring-powered clock around 1510. It was not very precise. The first clock with a minute hand was invented by Jost Burgi in 1577. It also had problems.
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www.arcytech.org/java/clock/clock_history.html
www.arcytech.org/java/clock/clock_history.html
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