The Isotropic Vector Matrix of Buckminster Fuller's Synergetics and the Octahedron-Tetrahedron relationships within it.

The Cuboctahedron (Vector Equilibrium) is a geometric model that Fuller talks about extensively in Synergetics 1 & 2.

Sphere packing 12 unit-radius spheres around a nucleus will produce a geometric shape that Buckminster Fuller named the Vector Equilibrium.