Noun
An instrument or machine serving to measure time by the fall, or flow, of a certain quantity of water; a clepsydra.
Source: Webster's dictionarywater-clock
Inventions that are credited to the ancient Greeks such as the gear, screw, bronze casting techniques, water clock, water organ, torsion catapult and the use of steam to operate some experimental machines and toys. Source: Internet
In 1066, the Chinese inventor Su Song built a water clock in the form of a tower which featured mechanical figurines which chimed the hours. Source: Internet
Events * 671 Emperor Tenji of Japan introduces a water clock ( clepsydra ) called Rokoku. Source: Internet
To address the problem of slowed timekeeping in the pressure head of the inflow water clock, Zhang was the first in China to install an additional tank between the reservoir and inflow vessel. Source: Internet
While never reaching the level of accuracy of a modern timepiece, the water clock was the most accurate and commonly used timekeeping device for millennia, until it was replaced by the more accurate pendulum clock in 17th-century Europe. Source: Internet
The cases were put by the litigants themselves in the form of an exchange of single speeches timed by a water clock or clepsydra, first prosecutor then defendant. Source: Internet