Certified Interior Decorator (CID) Practice Test 2025 – All-in-One Comprehensive Guide to Exam Success!

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What is a clepsydra?

An instrument for measuring the distance

A mechanical clock

A water-clock

A clepsydra is specifically a type of water clock that measures time by the regulated flow of water. The origin of the word comes from the Greek terms "kleptein" (to steal) and "hudor" (water), highlighting how this device operates on the principle of water flow to keep track of time. Water clocks have been used since ancient civilizations, allowing for the measurement of time in a more consistent manner than sundials, especially in areas where sunlight was scarce or inconsistent.

The use of a water reservoir and the capacity to measure time accurately based on water volume makes a clepsydra distinct from other types of time-measuring devices, such as mechanical clocks or wind gauges. Understanding this historical context illustrates the various methods humans have developed for tracking time and enhances the appreciation of advancements in timekeeping technology.

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A wind gauge

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