General relativity describes spacetime by a metric, which determines the distances that separate nearby points.

Category: General relativity

General relativity was developed after special relativity to include concepts like gravity.

General relativity also agrees that any technique for faster-than-light travel could also be used for time travel.

General relativity, or the general theory of relativity, is the geometric theory of gravitation published by Albert Einstein in 1916 and the current description of gravitation in modern physics.

General relativity generalises 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.

General relativity also predicts the existence of gravitational waves, which have since been observed indirectly ; a direct measurement is the aim of projects such as LIGO and NASA / ESA Laser Interferometer Space Antenna and various pulsar timing arrays.

General relativity can be understood by examining its similarities with and departures from classical physics.

General relativity has a number of physical consequences.

General relativity predicts that the path of light is bent in a gravitational field ; light passing a massive body is deflected towards that body.

General relativity differs from classical mechanics in a number of predictions concerning orbiting bodies.

hif: General relativity

simple: General relativity

# REDIRECT General relativity

General relativity is based upon the principle of equivalence:

General relativity is a more exact theory than Newton's laws for calculating orbits, and is sometimes necessary for greater accuracy or in high-gravity situations ( such as orbits close to the Sun ).

General relativity models gravity as a curvature within space-time that changes as a gravitational mass moves.

General relativity, like electromagnetism, is a classical field theory.

** General relativity, Albert Einstein's theory of gravitation

General relativity is the generalization of special relativity to include gravitation.

At General Power's seat in the balcony there is also a gold phone.

What I want is to have this evidence come before Congress and if the Attorney General does not report it, as I am very sure he won't, as he has refused to do anything of the kind, I then wish that a committee of seven Representatives be appointed with power to take the evidence.

Remembering the step-by-step fate of Danzig and the West German misgivings about `` salami '' tactics, it is to be hoped that the dispatch of General Clay to West Berlin as President Kennedy's representative will mark a stiffening of response not only to future indignities and aggressions but also to some that have passed.

But if any realism and feeling for truth remain in the General Assembly, it is time for men of courage to measure the magnitude of the failure and urge some new approach.

In other words, the Secretary General is to be a nonpartisan, international servant, not a political, national one.

-- Your July 26 editorial regarding the position of Attorney General Robert F. Kennedy on prospective tax relief for DuPont stockholders is based on an erroneous statement of fact.

A Member of the United Nations which is in arrears in the payment of its financial contributions to the Organization shall have no vote in the General Assembly if the amount of its arrears equals or exceeds the amount of the contributions due from it for the preceding two full years ''.

According to the official interpretation of the Charter, a member cannot be penalized by not having the right to vote in the General Assembly for nonpayment of financial obligations to the `` special '' United Nations' budgets, and of course cannot be expelled from the Organization ( which you suggested in your editorial ), due to the fact that there is no provision in the Charter for expulsion.

The appointment of U Thant of Burma as the U.N.'s Acting Secretary General -- at this writing, the choice appears to be certain -- offers further proof that in politics it is more important to have no influential enemies than to have influential friends.

if such person is deceased or is under a legal disability, payment shall be made to his legal representative: Provided, That if the total award is not over $500 and there is no qualified executor or administrator, payment may be made to the person or persons found by the Comptroller General of the United States to be entitled thereto, without the necessity of compliance with the requirements of law with respect to the administration of estates ; ;

in the case of a partnership or corporation, the existence of which has been terminated and on behalf of which an award is made, payment shall be made, except as provided in paragraphs ( 3 ) and ( 4 ), to the person or persons found by the Comptroller General of the United States to be entitled thereto ; ;

Whenever the Secretary of the Treasury, or the Comptroller General of the United States, as the case may be, shall find that any person is entitled to any such payment, after such payment shall have been received by such person, it shall be an absolute bar to recovery by any other person against the United States, its officers, agents, or employees with respect to such payment.

Competitors came to receive higher percentage of General Motors business in later years, but it is `` likely '' that this trend stemmed `` at least in part '' from the needs of General Motors outstripping Du Pont's capacity.

Moreover, the hearing officer's report is but intradepartmental, is directed to the Attorney General and, of course, is not the recommendation of the Department.

It is not essentially different from a memorandum of an attorney in the Department of Justice, of which the Attorney General receives many, and to which he may give his approval or rejection.

Mr. Smith, like the present Secretary General, is a lawyer ; ;

Among the more familiar plans for dual-channel advancement is that of General Electric.

Old Order, acted and atonally sung by Grunnfeu Arapacis, the lovely Serbantian import, then entered and delivered the well-known invocation to the god Phineoppus, whereupon the stage is quite unexpectedly visited by a company of wandering Gorshek priests, symbolizing Love, Lust, Prudence and General Motors, respectively.

Should Congress authorize the Attorney General to file suit to accomplish admission of a child to a school to which he is denied entrance??

The current definition, sometimes known as the metric carat, was adopted in 1907 at the Fourth General Conference on Weights and Measures, and soon afterward in many countries around the world.

The gravitational redshift of a photon can be calculated in the framework of General Relativity ( using the Schwarzschild metric ) as

The impetus arose from the fact that complete analytical solutions for the metric of a covariant N-body system have proven elusive in General Relativity.

General relativity provides a set of ten nonlinear partial differential equations for the spacetime metric ( Einstein's field equations ) that must be solved from the distribution of mass-energy and momentum throughout the universe.

The ephemeris second ( defined as 1 / 86400 of a mean solar day ) was made one of the original base units of the modern metric system, or International System of Units ( SI ), at the 10th General Conference on Weights and Measures ( CGPM ) in 1954.

* Caltech Tutorial on Relativity — A simple discussion of the relation between the Stress-Energy tensor of General Relativity and the metric

The Minkowski metric ( the metric of flat space according to General Relativity ):

The General Conference on Weights and Measures is the governing body for the modern metric system and comprises the signing nations of the Treaty of the Meter.

The General Conference on Weights and Measures approved an updated version of the metric system in 1960 named Le Système international d ' unités ( International System of Units ) and abbreviated SI.

To do this in full form it is easy to introduce the General Relativity metric.

* Concepts of General Relativity-A first principles demonstration of the metric in static spacetime

If the metric components are considered the dynamical variables of General Relativity, the condition that the equations are coordinate invariant doesn't have any content by itself.