Time, Calendars, and Seasons

Keeping Time

What is a water clock

Water clocks were the first clocks that didn’t rely upon sunlight (as with sundials) to tell time. They operated by dripping water from containers at measured intervals. There were two key types of water clocks: those that measured time by the amount of water remaining in the clock and those that measured time by how much water dripped from the clock and filled a measuring device.


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