complex kinetic sculpture enclosed in a glass case

complex kinetic sculpture enclosed in a glass case. The sculpture features a white frame supporting a series of tracks, spirals, and other mechanisms. Red and white balls move through the tracks, sometimes propelled by dropping into baskets. The contraption seems to be designed to move the balls through an intricate path, highlighting potential energy, kinetic energy, and gravity. A sign on the lower part of the enclosure is partially visible.