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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used especially in navigation. Before the advent of radio time signals it was the only device that provided the time accurately enough for a ship at sea to determine its longitude.
http://qanda.encyclopedia.com/question/chronometer-used...
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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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Here are a few examples that show how a sextant can be used to find location... Finding latitude is easy enough. The first thing you need to do is measure the angle between the horizon and the sun when the sun is at its highest ... Now if you have a chronometer (this is just a fancy name meaning "extremely accurate clock"),
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www.pbs.org/wgbh/nova/shackleton/navigate/escapenav.htm...
www.pbs.org/wgbh/nova/shackleton/navigate/escapenav.html
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20 s/year : Mühle Marine Chronometer : Desk marine chronometer actually built by Hanseatic Instruments. 4.19 Mhz quartz, temperature stabilized. Here is a picture of the test certificate which comes with the clock. ... HIGH ACCURACY TIMEPIECES that could be used as marine chronometer;
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80calcs.web.ool.fr/Navigation/Astro/Chronometer.html
80calcs.web.ool.fr/Navigation/Astro/Chronometer.html
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The marine chronometer was used for finding longitude by comparing its time with a measurement of the local time at the ship's position. Used by Matthew Flinders (1774-1814) in his circumnavigation of Australia on the HMAS Investigator in 1801-1803.
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www.powerhousemuseum.com/collection/database/?irn=23788...
www.powerhousemuseum.com/collection/database/?irn=237881
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By 1829 he was entering chronometers into the 'Premium trials' at Greenwich Observatory. The most accurate and robust timekeeping equipment was then used by the British Navy and gained the clockmaker instant acclaim. ... It is thought that this marine chronometer was used a the Sydney Observatory.
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www.powerhousemuseum.com/collection/database/?irn=25904...
www.powerhousemuseum.com/collection/database/?irn=259041
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Countdown chronometer i've used to help me when im in a exposition; Author: pechan00000; Section: C#; Chapter: Languages ... By pechan00000; Countdown chronometer i've used to help me when im in a exposition...
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www.codeproject.com/KB/cs/Simple_Chronometer.aspx
www.codeproject.com/KB/cs/Simple_Chronometer.aspx
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