PR-33 LEVER APPARATUS
It is used for demonstrating the laws of leverage and for experiments on equilibrium.
It can also be used to model balance scales.
It consists of a polished boxwood rule, 0.5m in length and a set of three hangers.
It is divided into centimetres and millimetres on both edges.
It is drilled every 2 cm.
Additional hangers can be bought separately.
Also weights can be bought separately.
It is available in:
- Plastic
- Wood.