Another project relating to the movement of water was a commission to design a device that mimicked the motions of a boat on the ocean. A manufacturer of scales for fishing vessels that process their catch at sea wanted a way to demonstrate to prospective customers that the measurements made by their instruments were unaffected by a boat’s rising and falling and pitching. I made two different prototypes. The first (“Ocean Motion Simulator 1”), while it reflected very effectively the chaotic motions of a boat in choppy seas, was deemed too expensive to manufacture. Sacrificing some complexity of motion, I proposed an alternative, simpler design, “Ocean Motion Simulator 2”, which was accepted.