

An Essay on General Relativity This site contains a comprehensive introduction to the basic ideas and tests of general relativity astro.physics.sc.edu/selfpacedunits/Unit57.html 

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). arxiv.org/abs/grqc/9807044 

Derivation of gravitational waves in Einstein, BransDicke and Rosen theories of gravity. Mathematical derivation of gravitational waves to quadrupole order in the bransdicke scalartensor and rosen bimetric theories of gravity. www.davisinc.com/relativity 

Dulkyn: Scientific Center for GravitationalWave Research Research includes detection of periodic gravitational radiation from relativistic astrophysical objects , investigation of infralowfrequency variations of terrestrial gravity field in the role of crystal growing and compound formation , and investigation dulkyn.org.ru 

Experimental Gravitational Physics Using DragFree Satellites Covers current and past projects in experimental gravitational physics using dragfree satellites including the relativity gyro , equivalence principle , and lisa. www.dragfreesatellite.com 

General Relativity Simulation Contest The purpose of this contest is to prove general relativity using a (simple) algorithm. users.pandora.be/nicvroom/contest.htm 

Gravitational Lensing A popular site with interactive demonstrations of gravitational lensing. the background material is at a graduate level www.iam.ubc.ca/~newbury/lenses/lenses.html 

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. arxiv.org/abs/physics/9908041 

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. www.aip.org/enews/physnews/1999/split/pnu4541.htm 

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. einstein.stanford.edu 

Handbook of Space Astronomy and Astrophysics  Relativity A collection of equations important to both special relativity and general relativity. ads.harvard.edu/books/hsaa/chap10.html 

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. axion.physics.ubc.ca/hyperspace 

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 spacetime. www.fourmilab.ch/gravitation 

Lecture Notes on General Relativity Sean m. carroll's lecture notes from a onesemester graduatelevel course he taught at mit in 1996. notes are in postscript format. pancake.uchicago.edu/~carroll/notes 

NOVA Online/Einstein Revealed Profile of albert einstein , with additional teaching resources , shockwave demonstrations , and animations of relativity concepts. www.pbs.org/wgbh/nova/einstein 
