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Chronometry (1851-1989)
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Chronometry (1851-1989)
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The determination of longitudes, the timing contest and the «Geneva Seal »
With the invention of the balance spring in 1675, watchmaking graduated to the status of exact science. Although the improvement in the regulation of the timekeeper quickly became an evidence, the quest for absolute precision was only in its first steps.
One must consider that the precision of clocks and watches was of primary importance; when embarked onto a ship, they enabled the calculation of longitude, and ...
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