testing of chronometer

См. также в других словарях:

• Chronometer watch — For other uses, see Chronometer (disambiguation). Inside chronometer mechanism . A chronometer watch is a specific type of watch tested and certified to meet certain precision standards. In Switzerland, only timepieces certified by the COSC may… …   Wikipedia

• Marine chronometer — Breguet twin barrel box chronometer. Classification Clock Industry Transportation …   Wikipedia

• Observatory Chronometer — In the world of mechanical timepieces, accuracy is paramount. In the times before electronics, mechanical timepieces called marine chronometers were developed to a very high degree of accuracy and used for maritime navigation. In order to test… …   Wikipedia

• Nicolas Mathieu Rieussec — Born Nicolas Mathieu Rieussec July 20, 1781(1781 07 20) Paris, France Died June 18, 1866(1866 06 18) (aged 84) Paris, France Occupation Watchmaker, inventor, businessman …   Wikipedia

• COSC — This article is about the Swiss Official Chronometer Testing Institute, known by its French acronym of COSC. For the state college in Connecticut, see Charter Oak State College. Contrôle Officiel Suisse des Chronomètres COSC aka C.O.S.C. is… …   Wikipedia

• John Harrison — Infobox Scientist name = John Harrison |300px image width = 260px caption = P.L. Tassaert s half tone print of Thomas King s original 1767 portrait of John Harrison, located at the Science and Society Picture Library, London birth date = birth… …   Wikipedia

• Besançon Astronomical Observatory — Organization Centre national de la recherc …   Wikipedia

• Neuchâtel Observatory — Code 019   Location Neuchâtel, Canton of Neuchâtel …   Wikipedia

• Observatory of Geneva — Organization University of Geneva Code 517   …   Wikipedia

• History of timekeeping devices — For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12 hour periods, and… …   Wikipedia

• Watch — For other uses, see Watch (disambiguation). Early wrist watch by Waltham, worn by soldiers in World War I (Deutsches Uhrenmuseum, Inv. 47 3352) A watch is a small timepiece, typically worn either on the wrist or attached on a chain and carried in …   Wikipedia