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 ?
After all, on offer is time spent amongst timeless timepieces, cultivating an appreciation of the art of horology.
I got spotted and asked if I had ever considered horology.
Based at the historic Birmingham School of Jewellery, the horology degree teaches the art and science of time measurement - skills developed over three centuries.
These watches are not mere symbols of luxury, they are symbols of excellence and creativity of the art of horology, just like fine paintings, sculptures or architecture," says Yashovardhan Saboo, chairman of Ethos.
Whether the industry is horology or not, though, these aspirations should be at the heart of what all businesses do - good service done promptly and running how you'd expect.
Agood mantra for aficionados of horology is 'invest your time wisely'.
It also assures Frederic that his creations will come as reassurance to a lot of collectors in the horology domain who are interested in reinterpreting time with clocks gone to waste.
Taking place from the 5th to 7th of September at Syon Park, west London, Salon Prive 2012 is set to be bigger and better with more exhibitions and previews from the worlds of automotive, aviation, jewelry, marine, horology, technology and all things luxury lifestyle than ever before.
In 1969, the Swiss brand presented the world of horology with the first self-winding chronograph movement.
Consisting of about 130 lots, and estimated to fetch in the region of Au5 million, the sale will be a tribute to a life devoted to horology.
This is the conviction upon which De Bethune bases its pursuit of excellence in the world of horology.