concept of mass in general relativity (GR) is more subtle to define than the concept of mass in special relativity. In fact, general relativity does not...

"mass" has two meanings in special relativity: invariant mass (also called rest mass) is an invariant quantity which is the same for all observers in all...

is incompatible with general relativity, for the device gets more massive. — Thomas Gold, in Negative mass in general relativity. But Forward showed that...

prediction of general relativity for the almost flat spacetime geometry around stationary mass distributions. Some predictions of general relativity, however...

General relativity is a theory of gravitation developed by Albert Einstein between 1907 and 1915. The theory of general relativity says that the observed...

Tests of general relativity serve to establish observational evidence for the theory of general relativity. The first three tests, proposed by Albert...

The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed and...

to general relativity are physical theories that attempt to describe the phenomenon of gravitation in competition with Einstein's theory of general relativity...

about a large mass, nonrelativistic and relativistic treatments are given in, respectively, Newtonian motivations for general relativity and Theoretical...

in the framework of special relativity, the Maxwell equations have the same form in all inertial frames of reference. In the framework of general relativity...

Albert Einstein's theory of general relativity, various mathematical structures and techniques are utilized. The main tools used in this geometrical theory...

In general relativity, a vacuum solution is a Lorentzian manifold whose Einstein tensor vanishes identically. According to the Einstein field equation...

incorporated a priori in the equivalence principle of general relativity. The International System of Units (SI) unit of mass is the kilogram (kg). The...

change in the mass of the system. For systems that include large gravitational fields, general relativity has to be taken into account; thus mass–energy...

General relativity is a theory of gravitation that was developed by Albert Einstein between 1907 and 1915, with contributions by many others after 1915...

Numerical relativity is one of the branches of general relativity that uses numerical methods and algorithms to solve and analyze problems. To this end...

In general relativity, a geodesic generalizes the notion of a "straight line" to curved spacetime. Importantly, the world line of a particle free from...

(removed), and m as the change in mass. In relativity, all the energy that moves with an object (i.e., the energy as measured in the object's rest frame) contributes...

In general relativity, the metric tensor (in this context often abbreviated to simply the metric) is the fundamental object of study. The metric captures...

In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert...

The two-body problem in general relativity (or relativistic two-body problem) is the determination of the motion and gravitational field of two bodies...

The Hawking energy or Hawking mass is one of the possible definitions of mass in general relativity. It is a measure of the bending of ingoing and outgoing...

This form was a critical input for the development of the theory of general relativity. The strong form requires Einstein's form to work for stellar objects...

efforts. Under general relativity, gravity is the result of following spatial geometry (change in the normal shape of space) caused by local mass-energy. This...

light) can escape it. Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The...

March 2013. Retrieved 22 March 2013. Bondi, H. (1957). "Negative mass in general relativity". Reviews of Modern Physics. 29 (3): 423–428. Bibcode:1957RvMP...

Eventually Planck (1907) derived the mass–energy equivalence in general within the framework of special relativity, including the binding forces within...

convergence. In the field of general relativity, he is especially known for his work on quasilocal mass–energy; the Wang-Yau quasi-local mass is named in his honor...

Linguistic relativity asserts that language influences worldview or cognition. One form of linguistic relativity, linguistic determinism, regards peoples'...

Komar mass (named after Arthur Komar) of a system is one of several formal concepts of mass that are used in general relativity. The Komar mass can be...