The curvature of space-time is related directly to energy and momentum of whatever matter and radiation are present (in space-time). This is specified by the Einstein field equations. Predictions of general relativity concern especially the passage of time, the geometry of space, the motion of bodies in free fall, and the propagation of light. The theory and other parts of relativity theory are used today in all calculations related to gravity and space-time and light. However, general relativity cannot be reconciled with the laws of quantum physics to produce a complete and self-consistent theory of quantum gravity.
Today, we’ll take a look at some of the possible unknowns that may contribute to finding Einstein’s theories lacking. For instance, we know that Einstein’s equations predict areas of space-time singularities and that paths of light and falling particles may…
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