Generic Eisco Labs Center Of Mass, Double Cone And Plane Demonstration & Toy - 17" Long  (Multicolor)

Eisco Labs Center of Mass, Double Cone and Plane Demonstration & Toy - 17" Long Center of mass demonstration | Apparatus comprises of a wooden A from with diverging rails and a double ended cone | Easy use, place cone of the bottom of the ramp and let go | Constructed of durable wood and clear coated for decades of use. | Comes assembled This is a great toy, executive gift, or physics demonstration as the cone appears to be traveling "Up" the ramp. The physics behind the demonstration is that as the double-ended cone moves up the ramp the center of mass is actually moving downward which drives the cone up the ramp itself. Amaze your students and colleagues.