A clock or chronometer is a device that measures and displays time. The clock is one of the oldest human inventions, meeting the need to measure intervals...

CLOCK (backronym for circadian locomotor output cycles kaput) is a gene encoding a basic helix-loop-helix-PAS transcription factor that is known to affect...

The Clock or The Clocks may refer to: The Clock (1917 film), a silent American film The Clock (1945 film), an American film The Clock (2010 film), a 24-hour...

The Doomsday Clock is a symbol that represents the likelihood of a human-made global catastrophe, in the opinion of the members of the Bulletin of the...

An atomic clock is a clock that measures time by monitoring the resonant frequency of atoms. It is based on atoms having different energy levels. Electron...

The modern 24-hour clock is the convention of timekeeping in which the day runs from midnight to midnight and is divided into 24 hours. This is indicated...

alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to...

A water clock or clepsydra (from Ancient Greek κλεψύδρα (klepsúdra) 'pipette, water clock'; from κλέπτω (kléptō) 'to steal', and ὕδωρ (hydor) 'water';...

In electronics and especially synchronous digital circuits, a clock signal (historically also known as logic beat) is an electronic logic signal (voltage...

82639°E / 21.41889; 39.82639 The Clock Towers (Arabic: أبراج الساعة, romanized: Abrāj al-Sāʿat, lit. 'Towers of the Clock', formerly known as Abraj Al Bait)...

A shot clock is a countdown timer used in a variety of games and sports, indicating a set amount of time that a team may possess the object of play before...

clock (also a longcase clock, tall-case clock, grandfather's clock, hall clock or floor clock) is a tall, freestanding, weight-driven pendulum clock,...

is the nickname for the Great Bell of the Great Clock of Westminster, and, by extension, for the clock tower itself, which stands at the north end of the...

A cuckoo clock is a type of clock, typically pendulum driven, that strikes the hours with a sound like a common cuckoo call and has an automated cuckoo...

Towers Clock Tower, Anantapur Clock Tower of Ateca Clock Tower, Brighton Clock Tower, Erode Clock Tower, Faisalabad Clock Tower, Herne Bay Clock Tower...

The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin ante meridiem, translating to "before...

Look up clock in Wiktionary, the free dictionary. A clock is an instrument for measuring time. Clock, CLOCK, or Clocks may also refer to: Clock (American...

90384°W / 31.44841; -104.90384 The Clock of the Long Now, also called the 10,000-year clock, is a mechanical clock under construction that is designed...

Look up biological clock in Wiktionary, the free dictionary. Biological clock may refer to: Age and female fertility, decrease of female fertility with...

Time dilation is the difference in elapsed time as measured by two clocks, either because of a relative velocity between them (special relativity), or...

A chess clock is a device that comprises two adjacent clocks with buttons to stop one clock while starting the other, so that the two clocks never run...

The Clocks is a work of detective fiction by British writer Agatha Christie, first published in the UK by the Collins Crime Club on 7 November 1963 and...

Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. This crystal oscillator creates...

In computing, the clock rate or clock speed typically refers to the frequency at which the clock generator of a processor can generate pulses, which are...

A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it...

Look up clocker in Wiktionary, the free dictionary. Clocker(s) may also refer to: Clocker (train), a former Amtrak rail service Clocker (composition)...

The Prague astronomical clock or Prague Orloj (Czech: Pražský orloj [praʃskiː orloj]) is a medieval astronomical clock attached to the Old Town Hall in...

Clock towers are a specific type of structure that house a turret clock and have one or more clock faces on the upper exterior walls. Many clock towers...

Mantel clocks—or shelf clocks—are relatively small house clocks traditionally placed on the shelf, or mantel, above the fireplace. The form, first developed...

Beverly Clock is a clock in the 3rd-floor lift foyer of the Department of Physics at the University of Otago, Dunedin, New Zealand. The clock is still...