Let’s get one thing out of the way: a chronometer is different than a chronograph, though one can also be the other. We’ve heard the terms confused one too many times, and while we’ll forgive past ...

In the days before GPS, the accuracy of a ship’s chronometer might be a matter of life and death. Navigators used them to determine longitude by measuring the local time via a sextant and a star map, ...

The ship's chronometer was essential to the development of the British Nation by providing ships with their longitude. From 1736 when the first practical chronometer was produced by Harrison until ...

Off the coast of Montauk, in the Long Island Sound, at the bottom of Peconic Bay and in other waters around the world, the remains of multiple ships lost at sea during the 1700’s and 1800’s are a ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This instrument is a specialized ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This instrument is a specialized ...

In the early days of sailing, it was extremely challenging for ships to determine their position at sea once they lost sight of land. Their navigation methods didn’t account for environmental factors ...