Used to demonstrate the geometrical center of gravity of two-dimensional object. The center of gravity of a freely suspended two-dimensional object always lies along the line drawn vertically downward from its point of suspension.
Comprises of a clear perspex rod mounted on a base with a suspension screw at the top and four laminas of clear acrylic - one each of circular, triangular, square and trapezoidal.
Each lamina has suspension holes along their periphery.
The point of intersection of lines drawn from point of suspension of 2 or more holes of a lamina gives center of gravity of that 2-dimensional lamina
Suitable for ages 13+.