ფარდობითობის ზოგადი თეორია: განსხვავება გადახედვებს შორის

 

 

 

Many predictions of general relativity differ significantly from those of classical physics, especially concerning the passage of time, the geometry of space, the motion of bodies in [[free fall]], and the propagation of [[light]]. Examples of such differences include [[gravitational time dilation]], the [[gravitational redshift]] of light, and the [[Shapiro delay|gravitational time delay]]. General relativity's predictions have been confirmed in all [[tests of general relativity|observations and experiments]] to date. Although general relativity is [[Alternatives to general relativity|not the only relativistic theory of gravity]], it is the [[Parsimony|simplest]] theory that is consistent with experimental data. However, unanswered questions remain, the most fundamental being how general relativity can be reconciled with the laws of [[quantum mechanics|quantum physics]] to produce a complete and self-consistent theory of [[quantum gravity]].

 

Einstein's theory has important astrophysical implications. It points towards the existence of [[black holes]]—regions of space in which space and time are distorted in such a way that nothing, not even light, can escape—as an end-state for massive [[star]]s. There is evidence that such [[stellar black hole]]s as well as more massive varieties of black hole are responsible for the intense [[radiation]] emitted by certain types of astronomical objects such as [[active galactic nucleus|active galactic nuclei]] or [[microquasar]]s. The bending of light by gravity can lead to the phenomenon of [[gravitational lens]]ing, where multiple images of the same distant astronomical object are visible in the sky. General relativity also predicts the existence of [[gravitational wave]]s, which have since been measured indirectly; a direct measurement is the aim of projects such as [[LIGO]]. In addition, general relativity is the basis of current [[Physical cosmology|cosmological]] models of a consistently expanding universe.

 

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