English clockmaker John Harrison revolutionized long distance seafaring in the 18th century, solving the problem of calculating longitude at sea and devising tools that helped sailors navigate with ...

To pinpoint your position on a map of the world you need to work out your co-ordinates, known as latitude and longitude. Latitude is your position north or south of the Equator. Lines, or parallels, ...

Developed over decades in the 1700s, Harrison’s clocks were major steps toward a reliable way of calculating longitude at sea Developed over decades in the 1700s, Harrison’s clocks were major steps ...

Right now if you want to know where you are, your smartphone map will tell you instantly. But these technologies only exist because of the efforts of 18th century geographers, explorers, astronomers ...