DESCRIPTION :-
• A well balanced, machined aluminum disc rotating smoothly at about its axis clamped on a tripod stand in vertical plane.
• The disc moving on ball bearing & has number of holes placed symmetrically in concentric circles of non-diameters.
• Four pins carrying scale pans can be inserted into the holes at any desired position.
Consists of :-
• a disk with a diameter of 245mm,
• a triangular base,
• a box with 10 weighing stones with heavy hooks (50gx100g),
• a base for balancing the device.