Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Clock> ?p ?o }
- Clock abstract "A clock is an instrument to indicate, keep, and co-ordinate time. The word clock is derived ultimately (via Dutch, Northern French, and Medieval Latin) from the Celtic words clagan and clocca meaning \"bell\". A silent instrument missing such a striking mechanism has traditionally been known as a timepiece. In general usage today a \"clock\" refers to any device for measuring and displaying the time. Watches and other timepieces that can be carried on one's person are often distinguished from clocks.The clock is one of the oldest human inventions, meeting the need to consistently measure intervals of time shorter than the natural units: the day, the lunar month, and the year. Devices operating on several physical processes have been used over the millennia. A sundial shows the time by displaying the position of a shadow on a flat surface. There are a range of duration timers, a well-known example being the hourglass. Water clocks, along with the sundials, are possibly the oldest time-measuring instruments. A major advance occurred in Europe around 1300 with the invention of the escapement, which allowed construction of the first mechanical clocks, which used oscillating timekeepers like balance wheels. Spring-driven clocks appeared during the 15th century. During the 15th and 16th centuries, clockmaking flourished. The next development in accuracy occurred after 1656 with the invention of the pendulum clock. A major stimulus to improving the accuracy and reliability of clocks was the importance of precise time-keeping for navigation. The electric clock was patented in 1840. The development of electronics in the 20th century led to clocks with no clockwork parts at all.The timekeeping element in every modern clock is a harmonic oscillator, a physical object (resonator) that vibrates or oscillates repetitively at a precisely constant frequency.This object can be a pendulum, a tuning fork, a quartz crystal, or the vibration of electrons in atoms as they emit microwaves. Analog clocks usually indicate time using angles. Digital clocks display a numeric representation of time. Two numeric display formats are commonly used on digital clocks: 24-hour notation and 12-hour notation. Most digital clocks use electronic mechanisms and LCD, LED, or VFD displays. For convenience, distance, telephony or blindness, auditory clocks present the time as sounds. There are also clocks for the blind that have displays that can be read by using the sense of touch. Some of these are similar to normal analog displays, but are constructed so the hands can be felt without damaging them. The evolution of the technology of clocks continues today.The study of timekeeping is known as horology.".
- Clock thumbnail BahnhofsuhrZuerich_RZ.jpg?width=300.
- Clock wikiPageExternalLink history.asp?file=marrison.
- Clock wikiPageExternalLink www.nawcc.org.
- Clock wikiPageID "6449".
- Clock wikiPageLength "71798".
- Clock wikiPageOutDegree "520".
- Clock wikiPageRevisionID "707842692".
- Clock wikiPageWikiLink 12-hour_clock.
- Clock wikiPageWikiLink 24-hour_analog_dial.
- Clock wikiPageWikiLink 24-hour_clock.
- Clock wikiPageWikiLink Aaron_Lufkin_Dennison.
- Clock wikiPageWikiLink Abbasid_Caliphate.
- Clock wikiPageWikiLink Abul-Abbas.
- Clock wikiPageWikiLink Al-Muradi.
- Clock wikiPageWikiLink Alarm_clock.
- Clock wikiPageWikiLink Alexander_Bain_(inventor).
- Clock wikiPageWikiLink Alexander_M._Nicholson.
- Clock wikiPageWikiLink Allan_variance.
- Clock wikiPageWikiLink Alt.horology.
- Clock wikiPageWikiLink Alternating_current.
- Clock wikiPageWikiLink American_Watchmakers-Clockmakers_Institute.
- Clock wikiPageWikiLink American_clock.
- Clock wikiPageWikiLink Ammonia.
- Clock wikiPageWikiLink Anchor_escapement.
- Clock wikiPageWikiLink Ancient_Greece.
- Clock wikiPageWikiLink Ancient_Rome.
- Clock wikiPageWikiLink Ancient_history.
- Clock wikiPageWikiLink Andronicus_of_Cyrrhus.
- Clock wikiPageWikiLink Armillary_sphere.
- Clock wikiPageWikiLink Artuqids.
- Clock wikiPageWikiLink Asian_elephant.
- Clock wikiPageWikiLink Astrolabe.
- Clock wikiPageWikiLink Astrology.
- Clock wikiPageWikiLink Astron_(wristwatch).
- Clock wikiPageWikiLink Astronomical_clock.
- Clock wikiPageWikiLink Asynchronous_circuit.
- Clock wikiPageWikiLink Atom.
- Clock wikiPageWikiLink Atomic_clock.
- Clock wikiPageWikiLink Augsburg.
- Clock wikiPageWikiLink Automaton.
- Clock wikiPageWikiLink Automaton_clock.
- Clock wikiPageWikiLink Babylon.
- Clock wikiPageWikiLink Backup_battery.
- Clock wikiPageWikiLink Baghdad.
- Clock wikiPageWikiLink Balance_spring.
- Clock wikiPageWikiLink Balance_wheel.
- Clock wikiPageWikiLink Balloon_clock.
- Clock wikiPageWikiLink Banjo_clock.
- Clock wikiPageWikiLink Barrel_(horology).
- Clock wikiPageWikiLink BaselWorld.
- Clock wikiPageWikiLink Battery_(electricity).
- Clock wikiPageWikiLink Bell.
- Clock wikiPageWikiLink Bell_Labs.
- Clock wikiPageWikiLink Big_Ben.
- Clock wikiPageWikiLink Binary_clock.
- Clock wikiPageWikiLink Binary_number.
- Clock wikiPageWikiLink Blois.
- Clock wikiPageWikiLink Bracket_clock.
- Clock wikiPageWikiLink Braille.
- Clock wikiPageWikiLink Bulova.
- Clock wikiPageWikiLink Bury_St_Edmunds.
- Clock wikiPageWikiLink Byzantium.
- Clock wikiPageWikiLink Caesium.
- Clock wikiPageWikiLink Caesium_standard.
- Clock wikiPageWikiLink Caliphate.
- Clock wikiPageWikiLink Candle_clock.
- Clock wikiPageWikiLink Canonical_hours.
- Clock wikiPageWikiLink Canterbury_Cathedral.
- Clock wikiPageWikiLink Capacitor.
- Clock wikiPageWikiLink Cape_Town.
- Clock wikiPageWikiLink Carriage_clock.
- Clock wikiPageWikiLink Cartel_clock.
- Clock wikiPageWikiLink Category:Articles_containing_video_clips.
- Clock wikiPageWikiLink Category:Clocks.
- Clock wikiPageWikiLink Cathode_ray_tube.
- Clock wikiPageWikiLink Celestial_navigation.
- Clock wikiPageWikiLink Celtic_languages.
- Clock wikiPageWikiLink Central_heating.
- Clock wikiPageWikiLink Chariot_clock.
- Clock wikiPageWikiLink Charlemagne.
- Clock wikiPageWikiLink Chess_clock.
- Clock wikiPageWikiLink China.
- Clock wikiPageWikiLink Christiaan_Huygens.
- Clock wikiPageWikiLink Chronometer_watch.
- Clock wikiPageWikiLink Church_(building).
- Clock wikiPageWikiLink Circadian_rhythm.
- Clock wikiPageWikiLink Clock_drift.
- Clock wikiPageWikiLink Clock_face.
- Clock wikiPageWikiLink Clock_ident.
- Clock wikiPageWikiLink Clock_network.
- Clock wikiPageWikiLink Clock_of_the_Long_Now.
- Clock wikiPageWikiLink Clock_signal.
- Clock wikiPageWikiLink Clock_tower.
- Clock wikiPageWikiLink Clockarium.
- Clock wikiPageWikiLink Clockkeeper.
- Clock wikiPageWikiLink Clockmaker.
- Clock wikiPageWikiLink Colgate_Clock_(Indiana).
- Clock wikiPageWikiLink Colgate_Clock_(Jersey_City).
- Clock wikiPageWikiLink Computer.