RBF Comments
RBF DEFINITIONS
Rigidity:
D. Bohm, Foundations of Physics, Vol. 1, No.4, 1971, p.369:
“The new order and measure introduced in relativity theory implies new notions of structure, in which the idea of a rigid body can no longer play a key role.”
RBF Comment:
“Generalization of tetrahedra utterly independent of rigidity.”
