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...

practice of advancing clocks to make better use of the longer daylight available during summer so that darkness falls at a later clock time. The typical implementation...

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...

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...

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...

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...

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

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...

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...

82639°E / 21.41889; 39.82639 The Clock Towers (Arabic: أبراج الساعة, romanized: ʾAbrāj al-Sāʿaẗ, lit. 'Towers of the Clock', formerly known as Arabic: أبراج...

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

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...

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...

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...

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

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

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

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...

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

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...

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...

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

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...

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

The Climate Clock is a graphic to demonstrate how quickly the planet is approaching 1.5 °C of global warming, given current emissions trends. It also...

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...

electronics, a word clock or wordclock (sometimes sample clock, which can have a broader meaning)[further explanation needed] is a clock signal used to synchronise...

An astronomical clock, horologium, or orloj is a clock with special mechanisms and dials to display astronomical information, such as the relative positions...