Newton published the law of universal gravitation F g = G (m 1 m 2)/r 2 in 1687 after observing the fall of the legendary apple in 1665 but did not give its physical mechanism. De Duillier in 1690, Le Sage in 1748 and Paul Schroeder in 2010 have proposed mechanical explanations but the nature and origin of their gravity-mediators remain unclear. Einstein’s General Relativity in 1916 linked the gravitational field with the curvature of, and gravity waves with the ripples in, the mathematical 4-dimensional spacetime continuum bereft of physical existence. In Unified Theory mass bodies are composed by electrons, protons & neutrons each having 10 20-23 cosmino-sharmon constituents thereby allowing for compositional fluctuations via emission and absorption of small cosmino-sharmon units. The 1.6×10 -33 cm diameter sharmons of the sharmon medium pass through inter-atomic spaces and between orbital electrons to enter a mass-body for intimate interactive exchange of 0-spin sharmon composed mass-energy units dE to generate attractive force dE/dx between gregarious sharmons of test mass-body and ambient sharmon medium and through it with all other mass-bodies. Action-at-a-distance is thus ruled out.The gravitational mass of the elementary cosminos (positrino & negatrino) composing the mass bodies and sharmons of the sharmon medium thus serve as both the cause and mediator of the gravitostatic force and field operating in the sharmon medium. The gravitational wave energy comprising 0-spin sharmons is emitted, absorbed and propagated as a Wave-Quantum UNIT in the sharmon medium via contiguous mechanism through 2-spin gravitons, which do not move from their mean positions. Since 0-spin sharmons compose all forms of neutral mass and energy the identity of gravitational and inertial masses follows naturally. General-relativity’s equation for bending of light under gravity is re-deduced from sharmon medium without bending of the spacetime.

Keywords: Gravity, Gravitation, Sharmon Medium, General Relativity, Bending of light under gravity, Gravity waves