Abstract
I will discuss a new paradigm for physics of dynamics and relativity that is necessary to be consistent with modern cosmology. The fact that the fundamental theories of physics were completed well before any significant knowledge about the real universe and its enormous gravity was available necessitates a re-examination of these theories, especially that of dynamics and relativity. The results of this analysis, along with several experimental facts, reveal that the gravity of the cosmos determines the laws of motion and the propagation of light. In a grand generalization of Machian thought, Newton’s law of motion and the equivalence principle are natural consequences of the gravitational effect in the massive universe. All effects of relativity of motion, like length contraction and time dilation are in fact cosmic gravitational effects. Electrodynamics has physical effects that go beyond special relativity, requiring new experiments and analysis. Indeed, new experiments in our laboratory indicate clearly that the one-way speed of light is not a universal constant relative to moving observers, shattering the most cherished of our beliefs in physics and necessitating replacement of the special theory of relativity with a new ‘Cosmic Relativity’.



