This wall-mounted apparatus comprises of a steel disc of Ø300mm diameter and 40mm thickness. This disc is mounted on a shaft running in precision bearings housed in a substantial wall bracket.

An indented mark on the flywheel helps counting the revolution which can be timed with a supplied digital stopwatch. Load hanger, weights and cord is supplied to perform the experiments.

Experimental capabilities can be verified by noting the measuring the time of rotations at specified weights.