How Scientists Solved the Longitude Problem

Open Culture put these videos on their site showing how scientists in the 18th century finally solved the longitude problem. In 1714, Open Culture notes, the British government opened an office to study the problem and offered an award to the first person to solve it.  If you go the Open Culture site, you'll find a couple of more videos describing how the problem was eventually solved.  This might be interesting for AP Human Geography and even  World History.