longitude by chronometer

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• Longitude by chronometer — Longitude by Chronometer, known by mariners as Long by Chron , is an astronomical navigation method of calculating an observer s position on earth. The method gives the observer a position line on which the observer is situated. Usually the… …   Wikipedia

• 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

• Chronometer — Chro*nom e*ter, n. [Gr. ? time + meter: cf. F. chronom[ e]tre.] 1. An instrument for measuring time; a timekeeper. [1913 Webster] 2. A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; intended to keep time …   The Collaborative International Dictionary of English

• Longitude — For Dava Sobel s book about John Harrison, see Longitude (book). For the adaptation of Sobel s book, see Longitude (TV series). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are… …   Wikipedia

• chronometer — chronometric /kron euh me trik/, chronometrical, adj. chronometrically, adv. /kreuh nom i teuhr/, n. 1. a timepiece or timing device with a special mechanism for ensuring and adjusting its accuracy, for use in determining longitude at sea or for… …   Universalium

• 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

• Chronometer — Die Bezeichnung Chronometer (sächlich, umgangssprachlich auch männlich,[1] zusammengesetzt aus altgriechisch χρόνος chrónos „Zeit“ sowie dem griechischen Neutrum μέτρον métron „Maß“, „Werkzeug zum Messen“[2]) steht für besonders präzise… …   Deutsch Wikipedia

• chronometer — chro•nom•e•ter [[t]krəˈnɒm ɪ tər[/t]] n. 1) hor a timepiece or timing device for use in determining longitude at sea or whenever exact measurement of time is required 2) cvb hor any timepiece, esp. a wristwatch, designed for the highest accuracy… …   From formal English to slang

• chronometer — /krəˈnɒmətə / (say kruh nomuhtuh) noun a timekeeper with special mechanism for ensuring accuracy, for use in determining longitude at sea or for any purpose where very exact measurement of time is required. {chrono + meter1} –chronometric… …  

• Box chronometer — Chronometer Chro*nom e*ter, n. [Gr. ? time + meter: cf. F. chronom[ e]tre.] 1. An instrument for measuring time; a timekeeper. [1913 Webster] 2. A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; intended… …   The Collaborative International Dictionary of English

• Pocket chronometer — Chronometer Chro*nom e*ter, n. [Gr. ? time + meter: cf. F. chronom[ e]tre.] 1. An instrument for measuring time; a timekeeper. [1913 Webster] 2. A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; intended… …   The Collaborative International Dictionary of English