2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/3727Quantum mechanical effects related to the recently developed projective theory of relativity are considered. It is shown that at cosmological time intervals the light velocity increases and the atomic units of length and time are shrinking. A new derivation of the Hubble Law is presented.14 pagesAstrophysicsGeneral Relativity and Quantum Cosmologytext