# Relativity

- 1
- An Essay on General Relativity
- Page http://astro.physics.sc.edu/selfpacedunits/Unit57.html
- Overview of the basic ideas and principal applications of general relativity. Written by John L. Safko for students in the self-paced astronomy courses at the University of South Carolina in 1997.

- 2
- Are There Any Good Books on Relativity Theory?
- Page http://math.ucr.edu/home/baez/physics/Administrivia/rel_booklist.html
- The Physics FAQs guide to relativity books; by Chris Hillman (with contributions by Nathan Urban). An extensive annotated list of semi-popular books, textbooks and background reading.

- 3
- Einstein Online
- Page http://www.einstein-online.info/
- Information about Einstein's theories of special and general relativity and their applications; site is hosted by the Max Planck Institute for Gravitational Physics. Includes a simple introduction, a collection of articles ("Spotlights on relativity"), and a relativistic dictionary.

- 4
- Interactive Experiments in Gravity
- Page http://www.fourmilab.ch/gravitation/
- 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.

- 5
- Physics Bookshelf - Relativity
- Page http://www.upscale.utoronto.ca/GeneralInterest/Relativity.html
- A collection of articles about relativity

- 6
- Relativity: List of Important Equations
- Page http://ads.harvard.edu/books/hsaa/chap10.html
- Page scans from the Handbook of Space Astronomy and Astrophysics giving equations and formulas for special relativity and relativistic cosmology. Includes bibliography.

- 7
- Spacetime - General Relativity, Quantum Gravity, and the Existence of Time
- Page http://www.ws5.com/spacetime/
- A brief summary of Spacetime Theories at the beginning of the Third Millennium, and of the possibility that we live in an essentially atemporal universe.

- 8
- The Physical Construction of Time
- Page http://www.kolumbus.fi/igor.zlobin/miz.htm
- Papers by Igor Zlobin that analyze time deceleration effect as predicted by both relativity and special relativity theories. Some papers are in English and Russia, others only in Russian.

- 9
- Wikipedia: General Relativity Resources
- Page http://en.wikipedia.org/wiki/General_relativity_resources
- Annotated list of reading material about general relativity: popular books, textbooks, books on specific topics, web courses, and websites.

- 10
- Wikipedia: Introduction to General Relativity
- Page http://en.wikipedia.org/wiki/Introduction_to_general_relativity
- Encyclopedia article explaining the basic concepts, observational tests and (astrophysical) applications of general relativity.

- 11
- General Relativity Simulation Contest
- Page http://users.telenet.be/nicvroom/contest.htm
- Attempt at a content aimed at the Internet community to write a simulation program, based on a simple algorithm incorporating the laws of general relativity, that can realistically simulate the behavior of black holes, binary stars, and the twin paradox. (December 28, 2005)

- 12
- A Concept of Space and Time
- Page http://www.spaceandtimeareone.com/
- Essay by Robert Brison about how what we perceive as time and space ("tise") evolved from a single quantized entity in nature ("tisons"). Briefly discusses implications for special relativity, general relativity, string theory, and the fundamental structure of matter.

- 13
- Anti-Relativity
- Page http://www.anti-relativity.com/
- Website presenting what the author claims to be experimental evidence against relativity, as well as more philosophical arguments and proposed explanations of the various experimental effects in terms of an ether theory. Includes a discussion board.

- 14
- Apparent Lack of Symmetry in Stellar Aberration and Euclidean Space Time
- Page http://www.rajandogra.freeservers.com/
- Critical examination of stellar aberration and its relativistic interpretation, followed by the author's alternative derivation based on Euclidean spacetime; by Rajan Dogra.

- 15
- Basic doubts on relativity
- Page http://www.geocities.co.jp/Technopolis/2561/eng.html
- Lays out the authors doubts about relativity, using light propagation scenarios, reference frames, and phenomena such as aberration.

- 16
- Einstein's Equivalence Postulate and Spacelike Waves
- Page http://www.coolissues.com/gravitation/gwaves.htm
- Essay by James Constant arguing how Einstein's equivalence postulate should be abandoned for the study of spacelike wave phenomena and gravitation. Contains links to other essays by the author, notably about Newton's Gravitation and its relation to Riemannian geometry and to cosmology.

- 17
- Einstein's Theory of Relativity in New Physical Model
- Page http://www.poshelaev.nm.ru/
- Essay explaining the postulates of relativity, the secret essence of time, spaces, and matter, and proposing the elimination of internal contradictions of special relativity; by Alexander Poshelaev. Also shows how the energy contained in the parallel spaces proposed by the author could be used to solve the current energy crisis. Article explains postulates of relativity, secret essence of time, spaces, matter.

- 18
- Euclidean Relativity
- Page http://www.euclideanrelativity.com/
- Texts describing a particular Euclidean interpretation of special relativity, including a proposed geometric unification of electromagnetism and gravity (in five dimensions), information on Euclidean versus Minkowski four-vectors, and a sketch of the Universe as a multi-dimensional fractal; by R.F.J. van Linden.

- 19
- Extinction Shift Principle (c)
- Page http://www.extinctionshift.com/
- Presents the principal axioms of the "extinction shift principle", a purely classical photon-gravity theory of emissions/re-emissions of electromagnetism and gravitation intended as an alternative to both general and special relativity. By Edward Henry Dowdye, Jr.

- 20
- From Paradox to Paradigm
- Page http://www.paradox-paradigm.nl/
- Alternative to relativity based on a dragged ether. Includes an exposition on the equivalence of magnetic and kinetic energy and the derivation of Planck's constant from quantum mechanics and the ether. Translation from a book in Dutch by Johan Bakker.