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Egyptians used the movement of the sun for a simple estimate of time. It wasn't very precise because of the seasons. http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ac08
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Clepsydra means, "Water Theif". Kept time by amount of water that drips from a tank. It could be used in two different ways, water dripping out and water dripping in. http://www.ancient-origins.net/ancient-technology/ancient-invention-water-clock-001818
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Most reliable method of measuring time at seas. http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ac08
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Built by Buddhist monk. To signify hours this clock will have figures pop out and strike bellls. http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ac08
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These were used before electric clocks, and in the clocks made afterwards. These were powered by a mainspring. http://www.uh.edu/engines/epi1506.htm'
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Minature versions of the cathedral clocks, were able to be put into homes or stores at the time. http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ac08
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These models were either fastened to belts or carried around the neck and they measured only passage of hours. http://www.orientalwatchsite.com/history-the-first-wristwatch/
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This clock was the most accurate of its time the error was than a minute each day. http://www.infoplease.com/ipa/A0855495.html
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This was another way to keep time, by the temperature. http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ac08
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Pocket watch is a time measure item that managed to infuse itself into culture and development of our modern civilization for unusually long period of time. http://www.historyofwatch.com/watch-history/history-of-pocket-watches/
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1st in the world to take an account for a new millenium. It was a long case clock. http://www.historyofwatch.com/clock-history/clock-timeline/
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Stop Watch
This was the first idea in the making of a stop watch. -
History of the ClockIn the 1930s the synchronous electric clock replaced mechanical clocks as the most widely used type of clock.
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History: First Wrist Watch
This was worn more for jewelry than a time piece. -
HIstory of Stop Watches
From this the stop watch became reality. -
1st digital watch was made in 1972 http://www.historyofwatch.com/clock-history/clock-timeline/
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Clock TimelineTIme signals were being transmitted through the radio.
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History of Stop Watches
The Chronograph slowly advanced to the Micrograph. -
Clock TimelineBetter known as Daylight Savings time to us.
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Atomic Clock
Most accurate clock in 1950s. -
Moonbeam flashing light alarm clock with luminous dial. The alarm buzzes if the light isn't shut off in 10 minutes. http://clockhistory.com/westclox/products/ben/
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Clock TimelineThese were helpful and more used for time than jewelry.
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Clock Timeline
The second was defined as 9,192,631,770 vibrations. -
Apple WatchApple watch has many things to it, you can change the wrist bands, the style of the screen, and how big the screen is. I cant find the exact date, the websites are saying something different.
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Todays clocks are varied. There are many different kinds, from apple watches to light of clocks. But all in all time and clocks are always evolving. This History is as yet incomplete. http://clockhistory.com/westclox/products/ben/
