EQUILIBRIUM MODEL / EXPERIMENT FOUR
This model achieves a careful equilibrium in the form of a self-stabilizing lever. Through compressive and tensile forces, the block balances on one end of a plank, which is suspended on a small fulcrum supported by a wire. The load on the opposite end of the plank takes the form of a column condition being driven downwards by two crossing wires strung at the apex of the pole.
The visual effect of the contrast in proportions between the two loads and the asymmetrical positioning of the fulcrum towards the thin column exaggerates the apparent imbalance of leverage, creating an illusion of levitation. The system is controlled by turning the pins on the side of the board to adjust the tension of the wires attached to both the pole and the fulcrum, which increases and decreases the slope of the plank without reassembling the model.