Tetrahedron

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Index Entry

Tetrahedron: Inside-Outing of Tetrahedron:

"Only the tetrahedron is insideoutable."

"The tetrahedron is the only structural system that can be turned inside out."

"The octahedron is infoldable, or innestable-- hemi-hedrally."

"The icosahedron dimples locally."

Citations

1. RBF holographs and sketches on "Annihilation" Somerset Club, Boston, 22 April 1971