At one point while manipulating the CAD software, the person conducting has to use their hand as a mouse. They stick out their pointer finger and slowly move th

At one point while manipulating the CAD software, the person conducting has to use their hand as a mouse. They stick out their pointer finger and slowly move the cursor around. This is not much different from using a mouse. However, it makes visualizing the manifold very simple and intuitive, which gives this experiment real value.