Ships need a reliable way to know their exact location at sea -- and for centuries, the lack of a dependable method caused shipwrecks and economic havoc for every seafaring nation. In this week's episode of the Futility Closet podcast we'll meet John Harrison, the self-taught English clockmaker who dedicated his life to crafting a reliable solution to this crucial problem.
We'll also admire a dentist and puzzle over a magic bus stop.
