The Clock That Solved the Ocean | Relaxing History for Sleep

For centuries, sailors could measure latitude, but knowing how far east or west they had travelled was another matter entirely. This is the calm story of the longitude problem: the search for a reliable method of finding position at sea, the remarkable clocks developed by John Harrison, and the invention that helped change navigation forever. Settle in for a slow journey through time, engineering, astronomy, and the open ocean. #History #JohnHarrison #Longitude