v. Girsewald: foam

Economic Partitioning of Three-Dimensional Space with Least Interface Area.

Kelvin foam structure.
      unfolded tetrakaidecahedron (x 2)
            download .pdf 425kb
            download .dxf 26kb

      three-dimensional model
            download .dxf 169kb

Weaire-Phelan foam structure.
      unfolded dodecahedron (x 2)
            download .pdf 425kb
            download .dxf 37kb

      unfolded tetrakaidecahedron (x 6)
            download .pdf 427kb
            download .dxf 29kb

      three-dimensional model
             download .dxf 4366kb