Collect information about time-measuring devices that were used in the ancient times in different parts of the world. Prepare a brief write up on each one of them. The write up may include the name of the device, the place of its origin, the period when it was used, the unit in which the time was measured by it and a drawing or a photograph of the device, if available

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names r sundials waterclocks and pendulum clocks.

Water clocks, along withsundials, are likely to be the oldest time-measuring instruments, with the only exceptions being the verticalgnomonand the day-countingtally stick.[1]Where and when they were first invented is not known, and given their great antiquity it may never be. The bowl-shaped outflow is the simplest form of a water clock and is known to have existed inBabylonand inEgyptaround the 16th century BC. Other regions of the world, includingIndiaandChina, also have early evidence of water clocks, but the earliest dates are less certain. Some authors, however, claim that water clocks appeared in China as early as 4000 BC.[

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what are diggreren

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collect information about time measuring devices that wereused in the accident times in the different parts of the world. prepare a brief write up on each of them. it may include name of device, the place of origin the period when it was used, the unit in which the time was measured & drawing or a photograph of the device



 
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