Synopsis

The year 1714 witnessed a pivotal challenge for the British Parliament: a reward of £20,000 was offered to anyone who could devise a reliable method for determining longitude at sea. The principle was understood – by comparing a ship's local time with that of its departure port, one could calculate its east-west position. However, the difficulty lay in creating a clock, a chronometer, capable of maintaining accurate time during a voyage, where fluctuating temperatures, humidity, gravitational sh