See also:

• Science: Physics: Particle  (361)
• Science: Physics: Quantum Mechanics: Quantum Field Theory  (141)
• Science: Physics: Quantum Mechanics: Relativistic  (4)

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Are There Pictorial Examples of Covariant and Contravariant Vectors - We present pictorial means of distinguishing contravariant vectors (or simply vectors) from covariant vectors (or linear forms)..

The Cosmological Constant - An overview of why Einstein added an extra term in general relativity, and why it is still examined..

The 5D Spacetime Consortium - We are a group of physicists and astronomers working on a 5-dimensional version of general relativity..

Derivation of gravitational waves in Einstein, Brans-Dicke and Rosen theories of gravity. - Mathematical derivation of gravitational waves to quadrupole order in the Brans-Dicke scalar-tensor and Rosen bi-metric theories of gravity..

Dulkyn: Scientific Center for Gravitational-Wave Research - Research includes detection of periodic gravitational radiation from relativistic astrophysical objects, investigation of infra-low-frequency variations of Terrestrial gravity field in the role of crystal growing and compound formation, and investigation of time variations of Terrestrial inertial field and the geophysical consequences..

An Essay on General Relativity - This site contains a comprehensive introduction to the basic ideas and tests of general relativity.

Experimental Gravitational Physics Using Drag-Free Satellites - Covers current and past projects in experimental gravitational physics using Drag-Free Satellites including the Relativity Gyro, Equivalence Principle, and LISA..

General Relativity Simulation Contest - The purpose of this Contest is to prove General Relativity using a (simple) algorithm..

Gravitational Lensing - A popular site with interactive demonstrations of gravitational lensing. The background material is at a graduate level.

Gravitational Waves: An Introduction - This paper presents an elementary introduction to the theory of gravitational waves. This article is meant for students who have had an exposure to general relativity, but results from general relativity have been derived in the appendices..

Gravity Probe B - Gravity Probe B is the relativity gyroscope experiment being developed by NASA and Stanford University to test two extraordinary, unverified predictions of Albert Einstein's general theory of relativity..

Handbook of Space Astronomy and Astrophysics - Relativity - A collection of equations important to both special relativity and general relativity..

Hyperspace at the University of British Columbia - Includes links to online journals, news and preprint archives, as well as lists of faculty at this university..

Interactive Experiments in Gravity - Try an experiment that illustrates the gravitational attraction between two objects or use a Java applet to understand how orbits work in strongly curved space-time..

Lecture Notes on General Relativity - Sean M. Carroll's lecture notes from a one-semester graduate-level course he taught at MIT in 1996. Notes are in postscript format..

NOVA Online/Einstein Revealed - Profile of Albert Einstein, with additional teaching resources, Shockwave demonstrations, and animations of relativity concepts..

Physics Bookshelf - Relativity - A collection of articles about relativity.

Publications in Physics and Mathematics by Walter Pfeifer - A textbook for relativistic quantum mechanics is presented. The Dirac equation is dealt with in detail..

QMW Hyperspace - A set of hypertext based services for general relativity research provided by the QMW Relativity group..

Relativity - Provides information on the history, experiments and paradoxes of relativity..

Relativity bookmarks - Rob Salgado's bookmarks.

Ricci - A Mathematica package for doing tensor calculations in differential geometry and general relativity..

Shapiro Radar Bounce Test - A two part overview of the Shapiro radar bounce test of general relativity. (The two parts consist of a section for normal people, and one for nerds).

Solving Einstein's Equations in Three Dimensions - This is a Mathematica notebook showing how to plot light cones in two plus one spacetime dimensions with a point mass..

The Special Theory of Relativity - Self-tutorial with short essays, questions and answers..

Why Time is Absolute, and Relative, But Never Universal - An article by Vincent Sauvé elaborating upon a materialist view of the absolute and relative nature of time..

Wrong: Some Scientifically Inaccurate Claims Concerning Cosmology and Relativity - Easy to understand 'debunking' of some common misconceptions about cosmology and relativity and why they are wrong..

Gravity of Gravity - An experiment at the University of Washington seeks to determine whether the gravitational binding energy of an object generates gravity of its own. (October 26, 1999).