chronometer journal

См. также в других словарях:

• Chronometer — Chronometer, »Zeitmesser«, könnte eigentlich jede Uhr und jeder sonstige Apparat zur Zeitmessung genannt werden. Das Wort bezeichnet aber jetzt ausschließlich die feinsten transportabel und gegen Gangänderungen durch Temperaturwechsel… …   Lexikon der gesamten Technik

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

• Box chronometer — Box Box, n.; pl. {Boxes} [As. box a small case or vessel with a cover; akin to OHG. buhsa box, G. b[ u]chse; fr. L. buxus boxwood, anything made of boxwood. See {Pyx}, and cf. {Box} a tree, {Bushel}.] 1. A receptacle or case of any firm material… …   The Collaborative International Dictionary of English

• 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

• Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London …   Wikipedia

• Radiometric dating — (often called radioactive dating) is a technique used to date materials such as rocks, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.[1]… …   Wikipedia

• Time — This article is about the measurement. For the magazine, see Time (magazine). For other uses, see Time (disambiguation). The flow of sand in an hourglass can be used to keep track of elapsed time. It also concretely represents the present as… …   Wikipedia

• Uhr [1] — Uhr, eine Vorrichtung zur Messung und Anzeige der Zeit. Jede gleichförmige Bewegung vermag der Zeitmessung zu dienen. Die Alten haben die Bewegung des Schattens (s. Sonnenuhren) und den Ausfluß von Wasser oder Sand aus der engen Oeffnung eines… …   Lexikon der gesamten Technik

• Escapement — redirects here. For the fisheries term for the stock surviving fishing pressures over a spawning cycle, see Spawn (biology). For other uses, see Escapement (disambiguation). A deadbeat escapement, used in many pendulum clocks. Click above to see… …   Wikipedia

• Ruth Belville — vor der Shepherd gate clock in Greenwich, 1908 Elizabeth Ruth Belville (* 5. März 1854 in London[1]; † 7. Dezember 1943 ebenda[2]) war eine britische Unter …   Deutsch Wikipedia

• Rolex — Infobox Company name = Rolex SA type = Privately held company foundation = 1905 by Hans Wilsdorf and Alfred Davis in London location city = Geneva location country = Switzerland location = locations = key people = Patrick Heiniger, CEO area… …   Wikipedia