clepsydra


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Related to clepsydra: water clock

clepsydra

(klĕp`sĭdrə) or

water clock,

ancient device for measuring time by means of the flow of water from a container. A simple form of clepsydra was an earthenware vessel with a small opening through which the water dripped; as the water level dropped, it exposed marks on the walls of the vessel that indicated the time that had elapsed since the vessel was full. More elaborate clepsydras were later developed. Some were double vessels, the larger one below containing a float that rose with the water and marked the hours on a scale. A form more closely foreshadowing the clock had a cord fastened to the float so that it turned a wheel, whose movement indicated the time. A further step was the use of gear wheels and a turning pointer. It is believed that clepsydras were used in Egypt c.2000 B.C.; from Egypt they were introduced into Greece and later from there into Rome.
References in periodicals archive ?
ACROSS: 2) sundial 4) clepsydra 5) pendulum 9) century 11) sixty 12) week.
Although the winner could have won more easier, Clepsydra showed that she is going the right way and this afternoon's much faster surface could see her go one better.
Continuum c Dansili - Clepsydra K Abdullah Unraced Brother to Passage Of Time and half-brother to Timepiece.
As in the clepsydra, the content of one novel flows into another, and it is left to the reader to construct the whole.
PARIS -- Sorin Group (MIL:SRN) announced today the first inclusion of a patient in the Clepsydra clinical trial.
As well as the Frankel society, Gauravaram also follows the Midday appreciation society as well as the rather obscure Clepsydra (dam of Passage Of Time) society.
Timepiece 4f Zamindar - Clepsydra K Abdullah 428121-RPR 115 She's done really well over the winter, has come back in bigger and stronger.
Twice Over is the third foal, but first runner, out of Lingfield Oaks Trial winner Double Crossed, herself a daughter of Listed scorer Quandary and a half-sister to Clepsydra, who has proved to be a fine broodmare, with three stakes-winning offspring - Father Of Time, Passage Of Time and last month's Sandringham Handicap heroine Timepiece.
Double-handed Dreams JUST two days after Timepiece followed Father Time as the second Royal Ascot winner in as many years out of Clepsydra, it is the turn of Starlight Dreams to attempt a similar feat.
Offering encouragement is that Clepsydra was successful over the Oaks course and distance for the same connections while her half-sister, Double Crossed, won the Lingfield Oaks Trial.
The daughter of Dansili, a Group 1 winner at two, is out of the Sadler's Wells mare Clepsydra, and another of the weekend's standout runners, Infamous Angel, is also by a Danehill stallion out of a Sadler's Wells mare.
The former French-based filly, who is now with Mark Johnston, has not run up to her best in handicaps on her last two starts, but she had shaped well in maiden company, notably when runner-up to Clepsydra at Epsom in August.