This table gives a hands-on look at the problems of torque and center of gravity. Its simplicity focuses attention on the actual forces involved, giving a clear, uncluttered picture of exactly what is happening. It is analogous to a force table with moments replacing forces at a point.

Students have said they like working with it because "it resembles a wheel balancer". The disk, made of 4.8 mm aluminum plate, is balanced on a ground tool steel point, being free to rotate or to tilt in any direction. Diameter is 60 cm.

Think about it. That is very big.

To provide reference points and a means of hanging weights, 360 holes are drilled through it on 2 1/2 cm centers. X and Y axes are identified by broken recessed lines. The circular level is set in the top of a hub. Both the hub and the center support post are stainless. All parts are interchangeable for storage and lab setup. Shipped with 5 Angled Mass Hangers, but additional masses can be hung for a more complicated solution.

Shipping weight is approximately 11 kg.