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sat [ muški rod ]

Vremenski period od minuta.

clock [ imenica ]
Generiši izgovor

ETYM as. clucge bell; akin to Dutch klok clock, bell, German glocke, Dan. klokke, Swed. klocka, Icel. klukka bell, Late Lat. clocca, cloca (whence French cloche); al perh. of Celtic origin; cf. Irish and Gael. clog bell, clock, w. cloch bell. Related to Cloak.
A device other than a watch for indicating or measuring time commonly by means of hands moving on a dial; broadly; any periodic system by which time is measured.
A registering device usually with a dial; specifically; odometer.
Time clock.
A timepiece that shows the time of day.
The device that generates periodic signals for synchronization.
Any device that measures the passage of time, usually shown by means of pointers moving over a dial or by a digital display. Traditionally a timepiece consists of a train of wheels driven by a spring or weight controlled by a balance wheel or pendulum. The watch is a portable clock.
In ancient Egypt the time during the day was measured by a shadow clock, a primitive form of sundial, and at night the water clock was used. Up to the late 16th century the only clock available for use at sea was the sand clock, of which the most familiar form is the hourglass. During the Middle Ages various types of sundial were widely used, and portable sundials were in use from the 16th to the 18th century. Watches were invented in the 16th century—the first were made in Nuremberg, Germany, shortly after 1500—but it was not until the 19th century that they became cheap enough to be widely available. The first known public clock was set up in Milan, Italy, in 135The timekeeping of both clocks and watches was revolutionized in the 17th century by the application of pendulums to clocks and of balance springs to watches. types of clock The marine chronometer is a precision timepiece of special design, used at sea for giving Greenwich mean time (gmt). Electric timepieces were made possible by the discovery early in the 19th century of the magnetic effects of electric currents. One of the earliest and most satisfactory methods of electrical control of a clock was invented by Matthaeus Hipp in 184In one kind of electric clock, the place of the pendulum or spring-controlled balance wheel is taken by a small synchronous electric motor, which counts up the alternations (frequency) of the incoming electric supply and, by a suitable train of wheels, records the time by means of hands on a dial.
The quartz crystal clock (made possible by the piezoelectric effect of certain crystals) has great precision, with a short-term variation in accuracy of about one-thousandth of a second per day. More accurate still is the atomic clock. This utilizes the natural resonance of certain atoms (for example, cesium) as a regulator controlling the frequency of a quartz crystal oscillator. It is accurate to within one-millionth of a second per day.

hour [ imenica ]
Generiši izgovor

ETYM Old Eng. hour, our, hore, ure, Old Fren. hore, ore, ure, French heure, Latin hora. Related to Year, Horologe, Horoscope.
(Homonym: our).
A period of time equal to 1/24th of a day (minutes); SYN. hr, minutes.
A special and memorable period.
Clock time; SYN. time of day.
Distance measured by the time taken to cover it; SYN. minute.
Period of time comprising minutes; hours make one calendar day.

ticker [ imenica ]
Generiši izgovor

Automatically prints stock quotations on a paper tape; SYN. stock ticker.

timepiece [ imenica ]
Generiši izgovor

An instrument or device for keeping time; SYN. timekeeper.

watch [ imenica {N/A} ]
Generiši izgovor

ETYM Old Eng. wacche, as. waecce, from wacian to wake; akin to Dutch wacht, waak, German wacht, wache. Related to Wake.
(Irregular plural: watches).
A small portable timepiece; SYN. ticker.
A purposeful surveillance to guard or observe; SYN. vigil.
The period during which someone (especially a guard) is on duty.
Portable timepiece. In the early 20th century increasing miniaturization, mass production, and, in World War I, the advantages of the wristband led to the watch moving from the pocket to the wrist. Watches were also subsequently made waterproof, antimagnetic, self-winding, and shock-resistant. In 19the electric watch was developed, and in the 197came the digital watch, which dispensed with all moving parts.
Traditional mechanical watches with analog dials (hands) are based on the invention by Peter Henlein (1480–154of the mainspring as the energy store. By 16the invention of the balance spring allowed watches to be made small enough to move from waist to pocket. By the 18th century pocket-watches were accurate, and by the 20th century wristwatches were introduced. In the 195battery-run electromagnetic watches were developed; in the 196electronic watches were marketed, which use the piezoelectric oscillations of a quartz crystal to mark time and an electronic circuit to drive the hands. In the 197quartz watches without moving parts were developed—the solid-state watch with a display of digits. Some include a tiny calculator and such functions as date, alarm, stopwatch, and reminder beeps.

weight-clock [ imenica ]
Generiši izgovor


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