  If a physical significance should be attributed to the cosmological large
number relationship obtained from Sciama's formulation of Mach's Principle,
then a number of interesting physical conclusions may be drawn. The Planck
length is naturally obtained as the amplitude of waves in a medium whose
properties are implied by the relationship. The relativistic internal energy
associated with a rest mass is explicitly related to the gravitational
potential energy of the Universe, and consistency with the Einstein photon
energy is demonstrated. Broader cosmological consequences of this formulation
are addressed.
