author
John Harrison
1693–1776
Best known for solving one of navigation’s biggest problems, this English clockmaker changed sea travel with a timekeeper accurate enough to help ships find their longitude. His stubborn, decades-long pursuit of precision turned careful craftsmanship into world-changing invention.
1 Audiobook
About the author
Born in Yorkshire in 1693, John Harrison grew up in a carpenter’s family and became a skilled maker of clocks while still young. Largely self-taught, he developed a reputation for remarkable mechanical ingenuity and for building timepieces of unusual precision.
Harrison is remembered above all for tackling the longitude problem, one of the great scientific and practical challenges of his age. By creating increasingly refined marine timekeepers—machines that could keep accurate time at sea—he made it possible for navigators to calculate longitude far more reliably on long voyages.
His work took many years, brought him into long disputes over recognition and reward, and ultimately earned him a place in the history of science, navigation, and horology. He died in London in 1776, but his clocks are still celebrated as masterpieces of invention and craftsmanship.