Using time-lapse photography, this video captures a one day’s transit down the Canal du Midi in France in one minute’s time.
Included in the video is the famous six-step staircase lock system locking down a total of more than 60 vertical feet.
In the early 1800s, the French academies of the sciences has attained such acclaim in devising sophisticated lock and canal systems, the U S Military Academy at West Point, NY, used physics textbooks in French to teach young cadets the latest methods of building bridges and canals..
See, William G. Crawford, Jr., “Florida’s Big Dig” (Cocoa, FL: 2007, Florida Historical Society Press).