Currently reading “Longitude” by Dava Sobel and gaining insight into the fascinating story of dead reckoning navigation and its deadly results. As a consequence, the Longitude Act sought a better way of determining a ship’s position in the sea.

I like this video because I wanted to see one of John Harrison’s chronometers in action. There is more history here than I had already learned from the book, and I saw his early clocks, wooden clocks, clocks without lubrication; fascinating to the mechanical side of my interests.