Glossary

Is a specialized timekeeping device used in marine navigation to determine longitude at sea. It is designed to maintain precise time even in challenging maritime environments. The marine chronometer has played a crucial role in the history of marine navigation by enabling sailors to accurately calculate their longitudinal position. By comparing the chronometer's time with a known reference time, such as Greenwich Mean Time (GMT), sailors can determine their location at sea. These chronometers are typically housed in sturdy and shock-resistant cases and often equipped with gimbals to ensure stability on a moving ship. The development of accurate marine chronometers has revolutionized navigation, making sea travel safer and more efficient.

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