The glasses were superglued to basically a dry erase board with casters on it so it could roll. I made a platform for it to roll on with a board on the end to stop it and mounted it at an incline. So when the board with the glasses stopped rolling the water would keep moving and splash over the side.
The water keeps moving relative to what? We know it's not the glass since the waters movement is clearly decoupled from the glass. T his is evidenced by the waters resistance to start moving with the glass and it's ability to keep moving once the glass stops. So the water moves relative to what? Anybody know?