Pulley Large Demonstration Double, Designed for Classroom Demonstrations, Light-weight, low-friction, and deformation-resistant plastic ensures accurate results, Open to make it easier for users to run pulley cords through them
Levelable duplex tripod base, extremely stable, for holding two rods of up to 16 mm diameter. Distance between rods 135 mm. Leg length: 185 mm Mass: 1850 g
Mechanical Effect demonstration, To demonstrate that cathode ray has kinetic energy that makes the blade wheel rotateCathode Rays exert a pushing effect on objects it falls on, is shown bythe rotation