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Online Stopwatch The British government in 1714 had exposed a high price for the development of a method applicable to the lake for the accurate determination of longitude. Harrison's solution, an accurate clock, angry contemporary astronomers and scientists instead of other solutions astronomical (lunar distance) were looking for the problem. Although Harrison was ultimately successful, but his model was too expensive. One of the developments of the fourth and final model Harrison created 1778 watchmaker John Arnold (1736-1799), who in 1780 coined the term stopwatch in order to apply his instrument.

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