His first stab at a maritime chronometer started in 1730 and resulted in the Harrison H1 which was given a sea trial in 1736. It wasn’t the very first clock designed for a ship, but it did ...

The answer to that problem turned out to be an accurate clock - a chronometer. Before a ship set sail, its chronometer would be set to the local time in harbour - for the British this was usually ...

The problem began to be solved in 1761 with John Harrison’s invention of the marine chronometer, and seagoing ships have carried chronometers ever since. Or at least they did until the advent of ...

Libby Purves meets actor Brian Cox and singer June Tabor. Coming up at: 21:58 Weather View full schedule Ship's chronometer from 'HMS Beagle' (made early nineteenth century), from England In our ...

The answer to that problem turned out to be an accurate clock - a chronometer. Before a ship set sail, its chronometer would be set to the local time in harbour - for the British this was usually ...