The fiberglass panels are reinforced with a conductive metal wire, which also allows for a signal to be applied to them. Currently sensor technology developed at MIT requires that a harmless low-frequency (50 Khz), low-voltage (10 volts) RF (electro-magnetic) signal be applied to the panels which the viewer walks on. This signal is then broadcast through the viewers body, effectively turning the viewer into a transmitter which broadcasts immediate information of their physical selves. The signal is then picked up by the pickup antennas (or sensors). A computer then analyzes the signals for gestural characteristics. The sensors are placed at the outside corners of the 8? module on both walls. This allows the fish sensors to place the occupants within three dimensional space.