Notes On the Management of Chronometers And the Measurement of Meridian ...
Notes On the Management of Chronometers And the Measurement of Meridian ...
Charles Frederick Alexander Shadwell
The book Notes On the Management of Chronometers And the Measurement of Meridian ... was written by author Charles Frederick Alexander Shadwell Here you can read free online of Notes On the Management of Chronometers And the Measurement of Meridian ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Notes On the Management of Chronometers And the Measurement of Meridian ... a good or bad book?
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As the work, on which we are now engaged purports to lay before its readers all useful information on the subject of the management of chronometers, it would mani- festly be incomplete if it omitted to introduce to the notice of the scientific student the ingenious investigations of recent writers on this interesting subject. We therefore propose briefly to explain the leading features of their methods, referring our readers for fuller information to the more copious explanations of the authors... themselves. Method of De Cornulier. M. De Cornulier,* an officer in the French naval service, had charge of the watches on board the Allier, during a cruise in the South Seas in 1829-31; afterwards as Director of the Naval Observatory at Lorient, he had the opportunity of enlarging his * M. De Cornulier has published, upon the calculation of the rates of chrono- meters, four memoirs, which have been successively inserted in the "Annates Maritimes " for the years 183 1, 1832, 1842, and 1844. All these memoirs have for their principal object the consideration of the influence that changes of temperature exercise upon the rates of these instruments, and the necessity of taking account of it, concurrently with the variation known under the name of the acceleration, in the determination of chronometric longitudes.
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