Ad
related to: water clock problems
Search results
Results From The WOW.Com Content Network
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 ...
It may be extremely difficult, depending upon the severity of the water damage, to repair or restore the clock to its correct condition. Salvaging warped or rotted wood can be challenging and the damaged material may need to be replaced entirely. Water damage also causes corrosion to the internal mechanisms of the clock.
A problem with most clepsydrae was the variation in the flow of water due to the change in fluid pressure, which was addressed from 100 BC when the clock's water container was given a conical shape. They became more sophisticated when innovations such as gongs and moving mechanisms were included. [ 33 ]
For premium support please call: 800-290-4726 more ways to reach us
Ctesibius' water clock, as visualized by the 17th-century French architect Claude Perrault. Ctesibius or Ktesibios or Tesibius (Ancient Greek: Κτησίβιος; fl. 285–222 BCE) was a Greek inventor and mathematician in Alexandria, Ptolemaic Egypt. [1] Very little is known of Ctesibius' life, but his inventions were well known in his ...
The invention of the mechanical clock in the 13th century initiated a change in timekeeping methods from continuous processes, such as the motion of the gnomon's shadow on a sundial or the flow of liquid in a water clock, to periodic oscillatory processes, such as the swing of a pendulum or the vibration of a quartz crystal, [3] [79] which had ...
One candidate is the Dunstable Priory clock in Bedfordshire, England built in 1283, because accounts say it was installed above the rood screen, where it would be difficult to replenish the water needed for a water clock. [24] [11] Another is the clock built at the Palace of the Visconti, Milan, Italy, in 1335. [25]
The clock ran out before the Giants could line up and spike it. The half ended without the Giants scoring on that drive, despite moving it to the 1-yard line. Even NBC play-by-play announcer Mike ...