1. An apparatus for modeling complex structures which comprises: A. a plurality of proto-panels, each proto-panel having an outer face, an inner face parallel to the outer face and three edge surfaces connecting the inner face to the outer face; B. each edge of each proto-panel of the first plurality of proto-panels further has a projection and a notch, the projection having an outside edge surface, an inside edge surface, a perpendicular surface which is a rhombus having included angles of approximately acos(1/3) and acos(-1/3), and a mounting corner surface, and the notch being capable of receiving a projection from an adjacent protopanel, whereby interconnecting four proto-panels from the first plurality of proto-panels forms a regular tetrahedron; furthermore, in the center of each proto-panel of the plurality of proto-panels is a face-to-face interlocking mechanism comprising projections and recesses, wherein the projections of one proto-panel will fit into the recesses of a second proto-panel, thereby allowing the tetrahedra formed by interconnecting four proto-panels from the plurality of proto-panels to interlocking with other tetrahedra formed by interconnecting another four proto-panels from the plurality of proto-panels.