Indiana University Bloomington Indiana University Bloomington IU Bloomington
Dr Tian Ma and I derived (2012) new gravitational field equations based only on the Einstein's principle of equivalence (PE) and the principle of general relativity (PGE), and on energy momentum constraint variation (PID)
Based on the new law of gravity, Dr Tian Ma and I showed that the dark matter and dark energy phenomena are intrinsic properties of gravity