What is clepsydra?
Submitted by: Muhammad
Also known as a "water clock", an ancient Greek time-keeping device similar to an hour-glass, which used a regulated flow of water or mercury through a small aperture to mark the passage of time. It is said that the clepsydra was invented to limit the speaking time of Greek orators (public speakers), which means that the first clocks were really invented for the purpose of encouraging politicians to sit down and shut up!
Submitted by: Muhammad
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