Wiktionary
n. (context relativity English) A theory extending special relativity and uniformly accounting for gravity and accelerated frame of reference, postulating that space-time curves in the presence of mass.
WordNet
n. a generalization of special relativity to include gravity (based on the principle of equivalence) [syn: general theory of relativity, general relativity theory, Einstein's general theory of relativity]
Wikipedia
General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics. General relativity generalizes special relativity and Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time, or spacetime. In particular, the curvature of spacetime is directly related to the energy and momentum of whatever matter and radiation are present. The relation is specified by the Einstein field equations, a system of partial differential equations.
Some 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, gravitational lensing, the gravitational redshift of light, and the gravitational time delay. The predictions of general relativity have been confirmed in all observations and experiments to date. Although general relativity is not the only relativistic theory of gravity, it is the 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 physics to produce a complete and self-consistent theory of quantum gravity.
Einstein's theory has important astrophysical implications. For example, it implies 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 stars. There is ample evidence that the intense radiation emitted by certain kinds of astronomical objects is due to black holes; for example, microquasars and active galactic nuclei result from the presence of stellar black holes and black holes of a much more massive type, respectively. The bending of light by gravity can lead to the phenomenon of gravitational lensing, in which multiple images of the same distant astronomical object are visible in the sky. General relativity also predicts the existence of gravitational waves, which have since been observed directly by physics collaboration LIGO. In addition, general relativity is the basis of current cosmological models of a consistently expanding universe.
General Relativity is a popular textbook on Einstein's theory of general relativity written by Robert Wald. It was published by the University of Chicago in 1984. The book, a tome of almost 500 pages, covers many aspects of the General Theory of Relativity. It is divided into two parts, the second of which covers more advanced topics such as causal structure, spinors and quantum effects. The book uses the Abstract index notation for tensors.
Category:General relativity
Usage examples of "general relativity".
Gravitational lenses and binary pulsar spin-downs reveal general relativity in the depths of space.
Of course, extra space-time dimensions are a commonplace of science fiction indeed, they provide an ideal way of overcoming the normal restriction of general relativity that one cannot travel faster than light or back in time (see Chapter 10).
To answer that, we must decide what a time machine looks like within the framework of general relativity.
Also more about general relativity, gravity, quantum theory, superstrings, condensed matter physics, finite state automata, and any other science subject that you care to mention.
Truly it is a way to hold the effects of general relativity in your hands.
Since it will be easier to see how Einstein came up with general relativity if we understand this coincidence, let's look at Newton's conception first.
John Andersen's team found deviations, all right, but they didn't fit Planet X, and they didn't fit General Relativity either.
This is one of the great findings of Albert Einstein's Special and General Relativity, and is one of the reasons his memory is so greatly honoured.
As a physics student, I'd had the usual courses in general relativity and theories of gravitation.