Wonder of ScienceTimelapse of the Falkirk Wheel in action; the only rotating boat lift of its kind in the world.
Video Credit: David Iliff / CC BY-SA 3.0
Further reading: https://en.wikipedia.org/wiki/Falkirk_Wheel
Rickd6@wonderofscience we have some lift-locks in Ontario Canada that are fascinating (and about 100years old) but this wheel is futuristic!