Water clock - Wikipedia A water clock, or clepsydra (from Ancient Greek κλεψύδρα (klepsúdra) ' pipette, water clock'; from κλέπτω (kléptō) 'to steal' and ὕδωρ (hydor) 'water'; lit ' water thief'), is a timepiece by which time is measured by the regulated flow of liquid into (inflow type) or out from (outflow type) a vessel, and where the amount
Clepsydra | Ancient, Water, Sundial | Britannica Clepsydra, ancient device for measuring time by the gradual flow of water One form, used by the North American Indians and some African peoples, consisted of a small boat or floating vessel that shipped water through a hole until it sank
CLEPSYDRA Definition Meaning - Merriam-Webster The ancient Greeks called their water clocks "klepsydra" ("water thief"), which comes from "kleptein" ("to steal") and "hydōr" ("water") English speakers stole "clepsydra" from the Greeks in the 16th century, but actual water clocks have become increasingly rare
As Old As Time: Ancient Invention of the Water Clock Around 325 BC, water clocks began to be used by the Greeks, who called this device the clepsydra (‘water thief’) One of the uses of the water clock in Greece, especially in Athens, was for the timing of speeches in law courts
The Clepsydra: Ancient Water Clocks | Epoch Clock Learning Center The **Clepsydra**, or water clock, was one of the most reliable ways to measure time for almost 3,000 years, from the courtrooms of ancient Greece to the astronomical observatories of China The simplest clepsydra was a bowl with a small hole in the bottom
CLEPSYDRA from Reess Clocks, Watches and Chronometers, 1819 This clepsydra, it is said, goes faster in summer than in winter, which is owing to the drum being relatively heavier in rarefied than in dense air; we can hardly suppose that any alteration in the fluidity of the water, as formerly supposed, would make any difference
The Advent of the Ancient Egyptian Clepsydra (Water Clock) The Clepsydra (pronounced “clep-see-drah”), more commonly referred to as the “water clock”, was among the earliest technological devices engineered for measuring time, predating mechanical clocks by over a millennia
Understanding the Clepsydra - timesticking. com An Ancient Water Clock Often referred to as a “Clepsydra” or “Water Thief” these ingenious clocks would use the flow of water to measure time Some of the earliest designs were as simple as two buckets, one placed above the other