Solid Steel Ball, 1-1/2In, Pair (Smashing Steel Sphere Kinetic Energy Demo), For physics experiments and demonstrations such as kinetic, density and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics etc.
Maxwell Apparatus, Supplied With Stand, 90mm Dia, Metal Wheel Fitted On Stand Explores Gravitation Momentum, Maxwell Apparatus With Stand Consisting Of Metal Wheel With Side Latching For Peripheral Mass. Concentration Via Wheel Center Passing Through A Shaft