161. Hyperspace GR Hypertext A set of hypertext based services for general relativity research provided by the QMW relativity group. http://www.maths.qmw.ac.uk/hyperspace/

Welcome to HyperSpace! This service is sponsored by the International Society on General Relativity and Gravitation Welcome to the HyperSpace service at QMW, a set of hypertext based services for general relativity research provided by the QMW Relativity group, based on a similar service at the University of British Columbia. Software is by Steve Braham We have the following: Software for finding GR (e)mail addresses GR News Archive Our GR related FTP archives Preprint searches in the LANL archives ... Services of interest Address searches Here we have a nifty forms-based program, GR, that searches a list of e-mail and snail mail addresses important to the GR community. It has many personas that cross-reference each other in an intelligent way so that searching is made easy. It also gives links to various preprint databases. We have the following: GR the full forms-based program or you can access a simple version of each persona if you do not have forms support: GR/people Finds the e-mail and snail mail addresses of people in the GR community. GR/journal Finds the e-mail and snail mail addresses of journals and GR research groups.

162. 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. http://membres.lycos.fr/bvr/relativ.html

TO UNDERSTAND RELATIVITY You are travelling in a rocket at 200,000 km/sec, and you send, in your movement's direction, a projectile that, seen from the earth, propagates at 250,000 km/sec. Does it mean that, if you measure the speed of the projectile from the rocket, your measures will give 50,000 km/sec? It's not sure at all. To calculate the speed of the projectile, that is the distance covered by unit of time, you will have to use some instruments to measure the distance (a ruler) and the time (a clock). Let's take a simple clock, made of a light ray going on and back between two mirrors, distant of 1.5 meter. One second corresponds to 100,000,000 rebounds. You install this clock in the rocket so that the light ray propagates perpendicularly to the rocket's trajectory. For the ruler, it's a little more complicate, since the projectile moves outside the rocket. You find the following solution: before sending the projectile, you send a mirror (M) provided with a small motor before the rocket. You follow the progression of the mirror with the help of a light signal. When the signal will take 1/3 second to go to the mirror and come back, you will know that the mirror will be at 50,000 km. 1/6 of second before this moment, you send a signal starting the motor of the mirror in order to stop it (we suppose the motor reacts instantaneously). Then you control that the mirror remains stationary at this distance.

163. A Unified Field Theory A mathematical description of nature based on the geometry of SpaceTime. General relativity,Energy-Stress tensor, a set of current densities and Quantum mechanics for Spin 1 Bosons. Space-Time dimensions calculated and not put in by hand. http://homepage.ntlworld.com/peter.hickman1/

164. 50 Years Of The Cauchy Problem In General Relativity Summer School on mathematical general relativity and global properties of solutions of Einstein's equations. Carg¨se, Corsica, France; 29 July 10 August 2002. http://www.phys.univ-tours.fr/~piotr/cargese/announcement/

The new URL for 50 years of the Cauchy problem in General Relativity Summer School on mathematical general relativity and global properties of solutions of Einstein's equations is fanfreluche.math.univ-tours.fr You will be automatically redirected there in four seconds Piotr CHRUSCIEL

165. Geometrie Der Relativitätstheorie Umfangreiche, gut lesbare Einf¼hrung in die spezielle und allgemeine Relativit¤tstheorie mit Schwerpunkt auf dem Konzept der Raumzeit. http://theory.gsi.de/~vanhees/faq/relativity/

Überblick Inhalt Index Norbert Dragon Überblick Inhalt Die Raumzeit Grundlegende Befunde ... FAQ Homepage

166. Ricci: A Mathematica Package For Doing Tensor Calculations In Differential Geome A Mathematica package for doing tensor calculations in differential geometry and general relativity. http://www.math.washington.edu/~lee/Ricci/

Ricci A Mathematica package for doing tensor calculations in differential geometry Version 1.37 Last Updated November 12, 2002 Ricci is a Mathematica package for doing symbolic tensor computations that arise in differential geometry. It has the following features and capabilities: Manipulation of tensor expressions with and without indices Implicit use of the Einstein summation convention Correct manipulation of dummy indices Display of results in mathematical notation, with upper and lower indices Automatic calculation of covariant derivatives Automatic application of tensor symmetries Riemannian metrics and curvatures Differential forms Any number of vector bundles with user-defined characteristics Names of indices indicate which bundles they refer to Complex bundles and tensors Conjugation indicated by barred indices Connections with and without torsion Limitations: Ricci currently does not support computation of explicit values for tensor components in coordinates, or derivatives of tensors depending on parameters (as in geometric evolution equations or calculus of variations), although support for these is planned for a future release. Ricci also has no explicit support for general relativity, or for other mathematical physics or engineering applications, and none is planned. If you are interested in such support, I recommend that you consider the commercial package MathTensor, which is far more extensive than Ricci, and provides all these capabilities and more. MathTensor is available from

167. Cambridge Relativity Nontechnical descriptions of cosmology, black holes, cosmic strings, inflation, quantum cosmology, and string theory. http://www.damtp.cam.ac.uk/user/gr/public/

National Cosmology Supercomputer - New! Cosmology Black holes National Cosmology Supercomputer - New! Cosmology Black holes ... [Next]

168. The Theory Of Absolute Space-Time Discovery of Errors in the Logic of Speed of Light Measurements and the MichelsonMorley Experiment lead to a Complete Refutation of relativity's Curved Space-Time. Space and Time are Linear. http://www.absolute-space-time.net

169. Physics 232 Lecture Notes A set of online course notes for introductory physics. Includes electromagnetic fields, relativity, and quantum mechanics. http://www.pa.msu.edu/courses/1997spring/PHY232/lectures/

Lecture Notes by Topic Course information Coulomb's law Electric fields and electric potentials Gauss' law and conductors ... Cosmology and astrophysics These files are prepared not as a substitute for the text book, but instead as a substitute for lecture notes. Hopefully, one can then attend lecture and concentrate on the material rather than writing notes.

170. INI Programme GMR Research session at the Isaac Newton Institute for Mathematical Sciences, Cambridge, UK; 8 August 23 December 2005. http://www.newton.cam.ac.uk/programmes/GMR/

@import url("/css/prog-non_n4.css"); Institute Home Page Programmes Web-Seminars Programme Home Seminars Workshops Participants Long Stay Short Stay Additional Links Contacts Mailing List Isaac Newton Institute for Mathematical Sciences Global Problems in Mathematical Relativity 8 Aug - 23 Dec 2005 Organisers Prof PT Chrusciel ( Tours ), Prof H Friedrich ( Golm ), Prof P Tod ( Oxford Programme theme General relativity has been around for a long time as a physical theory and an object of mathematical study. It was a subject of intense interest in the 1960’s and 1970’s when advances included the discovery of the Kerr solution, the study of black holes and singularity theorems and the introduction of asymptopia as a framework for studying asymptotic properties, including gravitational radiation. At the same time there were many mathematical problems which resisted mathematical analysis. In recent years there have been significant advances in our understanding of the topological, geometrical and PDE aspects of general relativity and progress is once again becoming rapid. New results are being obtained, and older results re-proved in greater generality. This programme will be structured around four themes: Elliptic aspects of general relativity: new methods of solving the constraint equations, developments from the solution of the Riemannian Penrose inequality, the study of static and stationary solutions including black holes.

171. Cosmic Information Center A collection of articles explaining cosmology and the theory of relativity, as well as biographies of noted cosmologists. http://spaceboy.nasda.go.jp/note/kagaku/e/kag_e.html

Cosmic Information Center JAXA is born The Japan Aerospace Exploration Agency (JAXA) was born on Oct. 1, 2003, merging the Institute of Space and Astronautical Science (ISAS), the National Aerospace Laboratory of Japan(NAL), and the National Space Development Agency of Japan (NASDA). The Cosmic Information Center was reborn due to the merger. The following are a new site name and URL after Oct. 1. Space Information Center(http://spaceinfo.jaxa.jp/index_e.htmlj All services provided through the NASDA web site Cosmic Information Center (http://spaceboy.nasda.go.jp) were terminated on March 31, 2004. We would like to extend our sincere appreciation for regularly accessing our web site. Please replace the old address in your bookmarks or favorite links with the new one. Thank you.

172. Example Codes Fortran 77 and 90 codes by Joan Masso. http://jean-luc.aei-potsdam.mpg.de/Codes/Examples/

Example codes The purpose of this repository is to show compact examples of the kind of codes that we develop in Numerical Relativity. Because of their complexity, the full Einstein Equations take much more work (check the H3expresso code ), but the basic ideas and coding paradims can be found here. Over time, more codes will be available here. Currently, there is only one (transport in 3D). 3d transport Check the code header for a very brief description of the code. Available in different flavours of FORTRAN. transport.f77 : FORTRAN 77 version. transport.mpi : FORTRAN 77 version + MPI message passing. It needs a glompi.h : header include file. transport.f90 Data pararell version (f90, CMF, cf77) Maintenance by jmasso@ncsa.uiuc.edu

173. Home Page A modern atomist theory of the physical universe.Alternative theory that overturns Einstein's Theory of relativity and returns physics to Classical Mechanics with absolute space and time. http://atomisttheory03.tripod.com/

var cm_role = "live" var cm_host = "tripod.lycos.com" var cm_taxid = "/memberembedded" Check out the NEW Hotbot Tell me when this page is updated HYPOTHETICAL COLLISIONS OF AN IDEAL SOLID A MODERN ATOMIST THEORY OF THE PHYSICAL UNIVERSE This hypothesis overturns Einstein’s Theory of Relativity and returns physics to Classical Mechanics with absolute space and absolute time. To view now (graphics will be missing or messed up, and page numbering is in-correct) Click Here http://atomisttheory03.tripod.com/physics.htm To be able to download (with good graphics and paging) as a Microsoft word document Click Here http://atomisttheory03.tripod.com/physics.doc ISSUES OF NATURAL LAW PART I ESSAYS ON CHRISTIANITY Including: God’s Infinite Nature, Evolution and Creation, Psychology, Modesty and others. PART II ECONOMICS Including: The Economic Cycle, Economic Growth, Capitalism and Socialism, the Myth of Competition. PART III FREEDOM AND GOVERNMENT Including: Types of Freedom, Maximizing Freedom, population stabilization, immigration, tobacco products ban. To view now (all drawings and graphs gone or messed up)

174. Physics 1501 - Modern Technology An undergraduate course offered at the University of Winnepeg on introductory physics. All lecture notes are online, and include material on relativity and quantum theory. http://theory.uwinnipeg.ca/mod_tech/tech.html

Next: Contents Up: Main index Physics 1501 - Modern Technology Physics Department University of Winnipeg September, 1999 Search Contents List of Figures List of Tables ... modtech@theory.uwinnipeg.ca

175. Mathematical Physics Mathematical Physics in the Department of Physics and Mathematical Physics. Research areas quantum field theory, string theory, statistical mechanics, theoretical condensed matter. physics, general relativity, quantum gravity and cosmology http://www.physics.adelaide.edu.au/mathphysics/

The University of Adelaide Home Departments Search ... Publications Department of Physics THE UNIVERSITY OF ADELAIDE ADELAIDE, SA 5005 AUSTRALIA Telephone: Facsimile: Mathematical Physics Group We are the Mathematical Physics Group in the Department of Physics and Mathematical Physics of the University of Adelaide We work in diverse areas such as quantum field theory, string theory, statistical mechanics, theoretical condensed matter physics, general relativity, quantum gravity and cosmology, and are involved with the National Institute for Theoretical Physics , the Special Research Centre for the Subatomic Structure of Matter and the Institute for Geometry and its Applications , all based at the University of Adelaide. The mathematical physics group regrets to announce that Professor H.S. Green , founding Professor of Mathematical Physics and Head of the former Department of Mathematical Physics, died on February 16, 1999, after a long battle with cancer. He is greatly missed by all his former students and colleagues. A memorial ceremony in his honour has been held in the University on 13 May 1999. His

176. A Study Of A Model Cosmology Contains a cosmology tutorial. Preliminary introduction to General relativity and its application to Cosmology. Also study of stringy matter as a part of the Universe. http://surhudm.tripod.com/seminarhtml

var cm_role = "live" var cm_host = "tripod.lycos.com" var cm_taxid = "/memberembedded" Check out the NEW Hotbot Tell me when this page is updated Next: Contents Contents B.Tech Seminar Report on A Study of a model Cosmology Submitted for the partial fulfillment of the requirements for the degree of Bachelor of Technology by More Surhud Shrikant under the guidance of Prof. Urjit A. Yajnik (Department of Physics) Department of Physics Indian Institute of Technology Bombay November 17, 2003 Abstract: Recent advances in Cosmology have taken us closer to understand our Universe better. We study preliminary General relativity and its application to Cosmology. Initially we develop the background for the Friedmann models and analyse their behaviour. Later we modify them to incorporate recent observations from the Cosmic Background Explorer(COBE), Wilkinson Microwave Anisotropy Probe, Supernova Cosmology Project and Hi-z Supernova project. We also examine the possibility of stringy matter as being a part of our Universe motivated by particle physics considerations and as a possible explanation for the Ultra High Energy Cosmic Rays. Contents The Construct Developing the metric The Riemann tensor and the metric ... The term Observational data The Cosmic Microwave Background Radiation The Problems The Inflation theory ... The fate then..

177. MSN Encarta : Online Encyclopedia, Dictionary, Atlas, And Homework Article provides an overview of Einstein's life, along with a detailed look at his theory of relativity. http://encarta.msn.com/find/Concise.asp?z=1&pg=2&ti=761562147

178. GrayAlbert 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) http://world.std.com/~sweetser/PopScience/timeDelay/timeDelay.html

The time delay of radar reflections off of Mercury installation 1995 For Folks It takes a few minutes for light to get to Mercury from Earth, but it takes a little longer due to the Sun. Radar signals from the Haystack Observatory in Westford Massachusetts were sent out into space to bounce off Mercury. The time the radar signals spent flying between the two planets was carefully measured. As the radar's path in space moved closer to the Sun, a small time delay grew in the radar reflections which is given by equations in the big, black book (Gravitation, by Misner, Thorne and Wheeler). Written in chalk is the artist's method to calculate the time delay. The tools used come directly from quantum mechanics which is not supposed to be an aid for such a calculation. Yet the results are the same (equation 40.13). For Nerds Irwin I. Shapiro measured the time delay of radar reflections off Mercury caused by the gravitational field of the Sun. The logarithmic dependence on the impact parameter confirmed general relativity's prediction. The Lorentz group will be employed for a similar end. The gravitational fields for a bound test mass are characterized by a member of the Lorentz group in the following manner: take the Newtonian orbital velocity

179. A First Look At Relativity And Gravitation Includes lecture notes and question sheets. http://www.pa.uky.edu/~cvj/AS500/as500_sch.html

A First Look at Relativity and Gravitation Notes, Schedule and Exercises: (15th Jan. '99 Warning! I have (and will be) updating the 1997 notes and repairing some errors. However, I will concentrate on the html files first. The postscripts will be repaired later...note the little * symbol near repaired links - cvj Date Topics and Notes Comments and Exercises Wed. 13th Jan.'99 lectures #1: Introduction: Thinking about Curved Spaces. .ps file Fri. 15th Jan.'99 lectures #2: Computing in Curved Spaces; Newtonian Physics and Galilean Transformations. .ps file exercises #1: Geometry and Calculus Mon. 18th Jan.'99 Holiday Holiday Wed. 20th Jan.'99 lectures #3: Some Real and Imagined Experiments; Einsteinian Physics and Lorentz Transformations. .ps file Fri. 22nd Jan.'99 lectures #4: From Space and Time to Spacetime!. .ps file Mon. 25th Jan.'99 .....cont'd exercises #2: Some Special Relativity (Click here for those notes I promised which will help with exercises #3. .ps file Wed. 27th Jan.'99 Fri. 29th Jan.'99 lectures #5: Special Relativity and Kinematics: Rephrasing Newton and Beyond. .ps file Mon. 1st Feb '99

180. Anthropic Principle And The Theory Of Everything - Anthropic Principle - Theory Unified Theory of Everything , includes Light, Gravity, Time, and relativity. http://www.geocities.com/capecanaveral/2382

Anthropic Principle and the Theory of Everything -But what about the hole that the "hole" left behind? Particle theory says that for every fermion type there is another fermion type that has exactly the same mass, and therefore no priori distinction between matter and anti-matter. Dirac's "Sea of Electrons" was dismissed as implausible for this reason, but the opposite value of all other charges (quantum numbers), indicates that the asymmetry between the two classes of particles is due to the fact that the anti-particle, (the "hole"), has -rho and negative mass, until it becomes a real particle. Abstract: The "Entropic Constant" produces the proverbial Theory of Everything once the Anthropic Principle is understood by way of the thermodynamic algorithm that gives rise to the history of man. The process exposes a grand scale cosmic coincidence which is otherwise known as "Punctuated Equilibria", that gets revealed at the universal level by way of the correct application of Dirac's Equation to this thermodynamic phenomenon as it applies to Particle Physics. The GUT then falls out of the ToE once the actual physics of " The -1th Law " of Thermodynamics is produced by this physics. The following is condensed from articles taken from the physicist moderated research group

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