1. Theories of Black Holes
... , enigmatic universe and exactly what these mysterious beings are all about. Einstein's general theory of relativity describes gravity as a curvature of space time caused by the presence of matter. If the curvature is fairly weak, Newton's laws of gravity can explain most of what is observed, for example, the regular motions of the planets. Very massive or dense objects generate much stronger gravity. The most compact ... the effect that its gravitational field would have on nearby matter (Hawking 117). The idea being implied was that light could actually be slowed by a strong enough forc...
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