horology


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horology

(hōrŏl`əjē), science of measuring timetime,
sequential arrangement of all events, or the interval between two events in such a sequence. The concept of time may be discussed on several different levels: physical, psychological, philosophical and scientific, and biological.
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 and technology of constructing instruments for its measurement or recording. Early measurements of the passage of time were based on observations of seasonal cycles and of the apparent motion of celestial bodies. Shorter intervals were measured by observing the shadow cast by an upright object; the shadow clock and the sundialsundial,
instrument that indicates the time of day by the shadow, cast on a surface marked to show hours or fractions of hours, of an object on which the sun's rays fall.
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 were probably the first devices constructed. Later came the hourglasshourglass,
glass instrument for measuring time, usually consisting of two bulbs united by a narrow neck. One bulb is filled with fine sand that runs through the neck into the other bulb in an hour's time. The date of its invention is unknown, but it was in use in ancient times.
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 and the clepsydraclepsydra
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
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 and finally the clockclock,
instrument for measuring and indicating time. Predecessors of the clock were the sundial, the hourglass, and the clepsydra. See also watch. The Evolution of Mechanical Clocks
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 and the watchwatch,
small, portable timepiece usually designed to be worn on the person. Other kinds of timepieces are generally referred to as clocks. At one time it was generally believed that the first watches were made in Nuremburg, Germany, c.1500.
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. The most accurate type of timekeeping device in existence today is the atomic clockatomic clock,
electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of
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. Highly accurate time, which is necessary for such purposes as navigation and the tracking of artificial satellites, is provided throughout the world by time signals that are transmitted by certain radio stations.

horology

[hə′räl·ə·jē]
(science and technology)
The science of measuring time and the technology of constructing instruments for this measurement.
References in periodicals archive ?
He has in the process spurred on others to appreciate the merits of these less-immediately visually appealing clocks and so almost single-handedly broadened the market for classic English horology to encompass more than just its perennially favoured standard clocks, with which collectors had always felt safe.
At the Coventry Technical Institute he was one of several, including Player, Rotherham and Fridlander, who lectured in horology. These courses included history, geometry and technical drawing as well as practical bench work.
I have an obsession with horology and I very much enjoy motorcars, but unlike horology, I've never seen the necessity for attempting to make an improvement in the motorcar."
For further information on UCE Birmingham's horology courses, call 0121 331 5595 or visit www.biad.uce.ac.uk.
The King's great understanding of horology means that the exhibition contains a quite remarkable range of clocks and scientific instruments--and because of the care devoted to their creation they are also extremely beautiful works of art.
Send a drawing or photograph plus full details to John Griffiths, Curator of Horology, Prescot Museum, 34 Church Street, Prescot, Merseyside L34 3LA.
Constructed on multiple visible levels, the workings of the timepiece, from the time display to the red-handed GMT indication to the power reserve display at 3 o'clock, invite the wearer on a journey into the depths of haute horology...
The Arceau Millefiori, meanwhile, marries horology and the art of crystal-making, as Hermes partners with the artisans of its sister company, Cristalleries royales de Saint-Louis, to adorn the dials of its Arceau women's wristwatches and pocket watches.
Audemars Piguet is one of the few global haute horology brands that remains In the hands of the family that founded It.
Parmigiani doesn't have an enduring heritage to speak of but it is dedicated to restoring historic horology. This model reprises the special sector seconds movement from a 19th century Perrin FrE res pocket watch in a striking half-moon aperture.
The horology house has roped in young and upcoming achievers from the region in various fields to promote its products in the Gulf.
The Regional Brand Manager for Officine Panerai Milvin George said, "We are very pleased to be part of the Doha watches & jewellery exhibition this year and proud to bring deep rooted heritage and horology of Officine Panerai to the Qatari market where we are confident that it will be well received by customers who appreciate sophisticated craftsmanship and exclusivity."