2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36672The problem of unification of Gravitation and Electromagnetism in four dimensions; some new ideas involving mixtures of commuting and anti-commuting co-ordinates. Maxwell's equations are extracted in terms of the curvature of the anti-commuting component of space-time. The profound difference in the size of the coupling constants of the two forces is interpreted in terms of the degree of expansion of the two kinds of space-time with evolution of the universe. Uncertainty in the quantum realm is interpreted in terms of an unmeasurable component of anti-commuting space-time.39 page revtex document. No figures. Revised version with corrected equations for the uncertainty principle (previous expressions on page 24 completely wrong)General Relativity and Quantum Cosmologytext