¶ Star Tetrahedron
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Star Tetrahedron:
"The name of this dynamic vector-equilibrium. complementary tetrahedron is the star tetrahedron. The star tetrahedron is one in which the vectors are no longer equilibrious and no longer omnidirectionally and regeneratively extensible. This star tetrahedron name was given it by Leonardo da Vinci.
"The star tetrahedron consists of five equal tetrahedra, four external and one internal. Because its external edges are not 180° angles it has 15 instead of six external edges and is a compound structure. … "
Cite SYNERGETICS draft “Antitetrahedron,” 8 Oct. '71.
