A First Look at Relativity and Gravitation
A Model of Spacetime - An explanation of Minkowskian geometry with two applets to demonstrate distance and angle in relativity
A Short Course on General Relativity - A graduate level course which includes weak field theory, gravitational waves, radiation damping, cosmology, the Friedmann and Lemaitre dusts, singularities, black holes, the Schwarzschild metric and Kruskal's extension of it. This is a single postscript document.
Accelerated Observers in Special Relativity - Discusses the age of distant objects for an observer that is accelerating.
An Essay on General Relativity - This site contains a comprehensive introduction to the basic ideas and tests of general relativity
An introduction to the Yilmaz Theory of Gravity - Yilmaz discovered an alternative theory of gravitation which surmounts some of the defects of general relativity. The solutions of the field equations contain neither space-time singularities, or, equivalently, there are no black holes.
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).
Australasian Society for General Relativity and Gravitation
Basic Gravity - The mechanisms of gravity, gravity wells and black holes explained from the viewpoint of relativity.
Black Holes - A very thorough introduction, studies the Schwarzschild, Reissner-Nordstrom, and Kerr solutions using a variety of coordinate systems. Additional topics include gravitational collapse, horizons, singularities, Carter-Penrose diagrams (aka conformal compactification), Hawking radiation and black hole thermodynamics
Bondi K-Calculus - A simple derivation of Einstein's theory of relativity which is widely taught to undergraduate physics students. The mathematics required though make this easy for anyone to understand.
C-Ship - A short overview of special relativity, filled with relativistic ray traced images. Explains relativistic effects using a theoretical spaceship.
Cambridge Relativity - non-technical descriptions of cosmology, black holes, cosmic strings, inflation, quantum cosmology, and string theory.
Cambridge Relativity Group
Cosmic Strings - A review of the physics which predicts the properties of cosmic strings and topological defects.
Cosmic Topology - General relativity does not allow one to specify the topology of space, leaving the possibility that space is multi- rather than simply- connected. This paper reviews the mathematical properties of multi-connected spaces, and the different tools to classify them and to analyse their properties.
Cosmology - This page contains information about the course Cosmology and exobiology read in the fall semester 1999 at the Physics Institute of NTNU, Trondheim
Cosmology at the University of Kentucky - The group is primarily interested in the numerical simulation of large-scale structure formation and the development of robust statistical measures for describing the resulting distribution
Dave's Relativity Page - "Time Flies When You're Going Nowhere" is dedicated to special relativity, including FTL (faster than light) travel and length contraction.
Einstein's Special Theory of Relativity - A quick guide to Einstein's Special Theory of Relativity, with reference to the relativity of simultaneity, from the perspective of someoone who doesn't agree with special relativity
Elements of Special Theory of Relativity - Sylwester Kalinowski - Elements of Special Theory of Relativity
Emotional exercises for the Special theory - This site explores the Special Theory using an approach that doesn't seem to have been used elsewhere. It doesn't involve mathematics and gives a true sense of the situation.
Everyday physics: What is the speed of light? - Is the speed of light constant? Does it change in water, air or other media? What is definition of meter? Get answer to your questions and find many related books on What Why Web.
Falling into a Black Hole (Andrew Hamilton) - Fall into a black hole on a real free fall orbit. All distortions of images are real, both general relativistic from the gravitational bending of light, and special relativistic from the near light speed orbit.
General Relativity - This homepage contains lecture notes on the course of general relativity FX2/H97 read in the fall semester 1997 at the Physics Institute of NTNU, Trondheim
General Relativity and Cosmology - An online notes from the University of British Columbia featuring simple explanations of cosmological phenomena.
General Relativity for Undergraduates - An online draft copy of an undergraduate text book on general relativity and cosmology.
General Relativity Simulation Contest - The purpose of this Contest is to prove General Relativity using a (simple) algorithm.
General Relativity Tutorial (John Baez) - This is bunch of interconnected web pages that serve as an informal introduction to general relativity. The goal is to demystify general relativity and get across the key ideas without big complicated calculations.
General Relativity: A Very Weird World - Site graphically explains the fundamentals of general relativity. Covers most aspects of the subject very well.
Geometry Around Black Holes (Michael Cramer Andersen) - A WWW Exhibition in Relativistic Computer Dynamics and Visualization
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.
How Stuff Works: Special Relativity - The major principles of special relativity (SR) are discussed in an accessible way, via 5 segments, to help you understand the lingo and theories involved.
inertial mass model in s.r. - A geometric model that decribe inertial mass and Special Relativity. A possible answer to the inertial mass? A book and some fragments and the possibility to receive all idea free.
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.
Introduction to Differential Geometry and General Relativity - A course from the Department of Mathematics at Hofstra University on differential geometry and general relativity.
Introduction to Special Relativity, New insights regarding Minkowski-space - Easy to understand introduction to Special Relativity, New insights regarding space and time relation, Minkowski-space
Is Travel Faster Than Light Possible? - From: Scientific American: Ask the Experts: Physics
Italian Society on General Relativity and Gravitation -- SIGRAV
Jim Doyle's Special Relativity Pages - A growing collection of pages on special relativity, including Special Relativity in under 15 Minutes!
Lecture Notes on General Relativity - Download lecture notes on special relativity, general relativity, differential geometry, and spherically symmetric space-times in postscript format.
LIGO Home Page - The Laser Interferometer Gravitational-Wave Observatory (LIGO) project is a pioneering effort to design and construct a novel scientific facility - a gravitational-wave observatory - that will open a new observational window on the universe.
Max-Planck-Institut für Gravitationsphysik - The Albert-Einstein-Institut (AEI), in Potsdam, is an institute of the Max-Planck-Gesellschaft, and carries out research in gravitational physics.
Modern Physics Course - A second year course introducing special relativity and quantum mechanics. All of the lecture notes are posted online.
Modern Relativity - Over 50 sections explaining derivations in general relativity. Has a special relativity subsection, message board, and links.
NOVA Online/Einstein Revealed - Profile of Albert Einstein, with additional teaching resources, Shockwave demonstrations, and animations of relativity concepts.
Numerical hydrodynamics in special relativity - This review is concerned with a discussion of numerical methods for the solution of the equations of special relativistic hydrodynamics
Oxford Mathematical Physics Group
Penn State U - Center for Gravitational Physics and Geometry
Physics Bookshelf - Relativity - A collection of articles about relativity
Pittsburgh Relativity Group
QMW Hyperspace - A set of hypertext based services for general relativity research provided by the QMW Relativity group.
Queen Mary - QMW Hyperspace GR - A set of hypertext based services for general relativity research provided by the QMW Relativity group
Reflections on Relativity - Comprehensive presentation of the special and general theories of relativity.
Relatively Simple - Special Relativity made Relatively Simple offers information and experiments about special relativity.
Relativity and Acceleration. - A fairly non-mathematical treatment of special relativity and its application to acceleration and rotation.
Relativity and Cosmology - undergraduate course notes include both special relativity (e.g., spacetime, Lorentz invariance, various "paradoxes") and general relativity (e.g., equivalence principle, black holes, gravitational waves, experimental tests of gtr). Apparently a survey course for non-majors, with little math but some very nice graphics.
Relativity and Electromagnetism - An undergraduate course covering the necessity for a theory of gravity, review of special relativity, tensor algebra, curved space-time, local inertial coordinates, short differential geometry, covariant derivatives, connections and curvature, curvature and geodesic deviation, Einstein's equations
Relativity and the Ether - Introductory articles. Michelson-Morley experiment based on Galiean transformations. Computer experiments with EM waves showing relation between Lorentz transformations and DeBroglie waves.
Relativity bookmarks - Rob Salgado's bookmarks
Relativity Channel - Presents Einstein's Theory of Relativity without math.
Relativity in a Wormhole - A set of pages produced by students to educate the general public on the theory of relativity and its implications
Relativity on the World Wide Web - Chris Hillman's bookmarks
Relativity Tutorial - An illustrated guide to relativity
Relativity, Space and Time - Science popularization article on the Theory of Relativity.
Ricci - A Mathematica package for doing tensor calculations in differential geometry and general relativity.
Seekers of the Truth - Here you will find essays and articles which cover many of the aspects of ethics, science, philosophy, reality, and other areas of thought that stir the mind. Explore and learn about the mysteries and inner workings of this complex universe.
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.
Southampton GR Explorer - An introduction to Einstein's theory of General Relativity and related topics. These pages include informative text, pictures and movies.
Space, Time, and Cosmology - Website for an online relativity class. Covers special relativity in depth and general relativity at a more qualitative level. Contains tutorial material, references, and links.
Spacetime 101 (Patricia Schwarz) - some basic background covering how mathematical models of space and time have evolved since ancient times, from the Pythagorean Rule to Newtonian mechanics, Special Relativity and General Relativity.
Special and General Relativity + Faster than light Travelling - A thorough explanation of special and general relativity, and a discussion about traveling faster than light, with Star-Trek in mind.
Special Relativity - A set of online lecture notes for a course in special relativity from the University of Winnepeg.
Special Relativity at Colorado University - This site offers a very detailed explanation of special relativity, with emphasis on paradoxes and generally accepted theories.
Special Relativity made Simple - A non-mathematical introduction to the concepts of special relativity.
Special Theory of Relativity - Presents an analytical assessment of the kinematics of special relativity.
Stanford U. - 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.
Starlight and Mercury's orbit - open.org/pitmandu For the junior student; an heuristic development of the equations explaining the precession of the orbit of Mercury and the deflection of light in a gravitational field without using differential geometry. Includes a review of the development of E=mc^2.
Sylwester Kalinowski - Elements of Special Theory of Relativity - Elements of Special Theory of Relativity
Syracuse Relativity Group
Tensor Calculus and Continuum Mechanics - A free downloadable textbook on introductory tensor analysis and continuum mechanics, in PDF format, from Professor John J. Heinbockel at Old Dominion University.
Tensors and Relativity (Peter Dunsby) - A complete online course in tensors and relativity
The Casimir Effect in Relativity
The Light Cone - An Illuminating Introduction to Relativity (by Rob Salgado) - a multimedia introduction to the theory of relativity
The Twistor Theory Website - Twistor theory offers a new approach, starting with conformally-invariant concepts, to the synthesis of quantum theory and relativity.
Theory of Analytical Time-Space (TATS) - A new theory on time-space is coming up! TATS deeply reveals the interplay of systems of moving time-space and shows that any two time-space coordinates with relative motion will deflect each other.
Theory of Relativity - Website for an online relativity class. Covers special relativity in depth and general relativity at a more qualitative level. Contains tutorial material, references, and links.
Theory of Relativity Class - Learn about Einstein's Theory of Relativity online. The class covers cosmology, the Twin Paradox, space travel, and black holes.
To understand Relativity - The fundamentals of Relativity (light speed constancy, time dilation and length contraction) are not mysteries. They can be explained easily, so that everyone can understand Relativity.
Tools of Tensor Calculus
Topical Interest Group on Gravitation - American Physical Society.
Topological Defects - This is an introductory set of lecture notes on topological defects, given to an audience with interests ranging from astronomy to particle physics.
Twin Paradox - An article explaining how the supposed twin paradox can be easily explained by special relativity.
U. Alberta Cosmology Program
U. British Columbia - UBC Hyperspace GR
U. Cape Town, South Africa
Usenet Relativity FAQ - sci.physics.relativity FAQ
UT Austin - Center for Relativity
WebMath Special Relativity Demonstration - A computer aided demonstration of what a wire frame house , tree, and stick figure would like like at any speed and any direction.
What is the speed of light? - Speed of light, is the speed of light constant?