Chronometer watch - Wikipedia, the free encyclopedia
A chronometer watch is a watch tested and certified to meet certain precision standards. In Switzerland, only timepieces certified by the COSC may use the word 'Chronometer' on them. However, numero...
en.wikipedia.org/wiki/Chronometer_watch
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Marine chronometer - Wikipedia, the free encyclopedia
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A marine chronometer is a timekeeper precise enough to be used as a portable time standard; it can therefore be used to determine longitude by means of celestial navigation. When first developed in ...
en.wikipedia.org/wiki/Marine_chronometer
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Resource for vintage watches, watch & clock books, marine chronometers and navigational instruments. Buy/Sell/Trade vintage watches including military timepieces ... Feel free to contact me if you, or someone you know, has a chronometer (chronometre), deck watch or military timepiece(s), or unusual watch for sale or trade.
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www.chronometer.net/
www.chronometer.net/
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The Fall Chronometer generated a constant period of time by letting a mass fall through a measured distance. The above instrument derives from the Gravity Chronometer invented by Cattell in 1886. Like the Control Hammer Apparatus, researchers used the Fall Chronometer to help calibrate the Hipp Chronoscope.
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www.psych.utoronto.ca/museum/fallchronometer.htm
www.psych.utoronto.ca/museum/fallchronometer.htm
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Transcript of a talk given at the Science Museum of The University of Coimbra. Includes photos of ancient devices. ... They need a chronometer or some other means of telling the time back at the observatory that was the reference point for the data in the almanac,
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www.mat.uc.pt/~helios/Mestre/Novemb00/H61iflan.htm
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Definition of chronometer from Webster's New World College Dictionary. Meaning of chronometer. Pronunciation of chronometer. Definition of the word chronometer. Origin of the word chronometer. ... Dictionary Home » Webster's New World College Dictionary » chronometer...
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www.yourdictionary.com/chronometer
www.yourdictionary.com/chronometer
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A measure of your watch. ... The word Chronometer comes from the Greek words Chronos and Metron, which mean “to measure time”. In the case of the chronometer, it doesn’t just measure time, but does so with a great degree of accuracy, and it has the paperwork to prove it.
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www.solitaire.com.sg/magazine/dec_jan/story6.html
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This was considered so important that countries offered prizes for the invention of an accurate chronometer. The British prize was won by John Harrison in 1764 for his seagoing chronometer accurate to one-tenth of a second per day.
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www.boatsafe.com/kids/navigation.htm
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