The structures discussed in the previous chapters were resting on the support base, which was not attached to the support surface (such as your feet and the ground). When the support base is attached ...The structures discussed in the previous chapters were resting on the support base, which was not attached to the support surface (such as your feet and the ground). When the support base is attached then tension can help cancel out gravitational torques and the structure can remain in equilibrium even when the center of gravity moves outside the area of support.
