¶ Chords
Index Entry
A sphere “is a system in which the most economical relationships between embracingly adjacent foci are the great circle chords and not the arcs. This is why pi (π) is irrelevant. Physics finds that nature always employs the most economical means. Being shorter, chordal distances are more economically traversed than arc detouring arcs. All the chords between external points of systems convergewith one another concavely and convexly-- that is with angles around each external point always adding to less than 360°.”
