61. Cosmic Commode A proposed resolution of general relativity theory and an alternative to the Big Bang theory of cosmological creation. http://www.cosmiccommode.com/

Cosmic Commode cosmology views gravity as it is defined by Machian-Einsteinian relativity: a ubiquitous curvature of space-time in the presence of matter and/or energy. Gravity itself is not a force.... It is geometry.... and the universe ain t expanding, it s just curved a funny way. THE COSMIC COMMODE A PROPOSED RESOLUTION OF GENERAL RELATIVITY THEORY and AN ALTERNATIVE TO THE BIG BANG MODEL OF COSMOLOGICAL CREATION by Phil Mayhew Some responses to The Cosmic Commode... Max Planck Institute for Astrophysics Garching, Germany Dept. of Astrophysics Princeton University Dept. of Philosophy Indiana University Author of The Ego and the Dynamic Ground Author of Art and Physics Internationally recognized artist and author of a score of books on Buddhism and the arts. This journey is brought to you by the author and the Beersheba Foundation, dedicated to the dual principle that (1) true adventure is found only off the beaten path, and (2) that the Creative Process can (and does) shape the world. Bon voyage....

62. Modern Relativity A set of notes outlining general relativity and its applications, including modern theories of FTL travel and wormholes. http://home.aol.com/zcphysicsms/modernrelativity.htm

63. General Relativity, Gravitation And Cosmology WWW Sites general relativity, Gravitation and Cosmology WWW sites. AustralasiaAustralasian Society for general relativity and Gravitation; http://www.physics.adelaide.edu.au/itp/relativity.html

General Relativity, Gravitation and Cosmology WWW sites Australasia Australasian Society for General Relativity and Gravitation Adelaide Mathematical Physics Group ANU Gravity Research ANU Gravitational Wave Group , Canberra Australian Consortium for Interferometric Gravitational Astronomy - ACIGA Canberra University Numerical Relativity Group , School of Mathematics and Statistics Monash - General Relativity Group , Dept of Mathematics and Statistics Sydney Nonlinear Analysis Group , School of Mathematics and Statistics UWA Gravity Wave Group Asia University of Tokyo, Gravitational Wave Group Europe , Potsdam AURIGA gravitational wave detector , Legnaro National Laboratories, Italy Balearic Islands University, Mallorca Cardiff Relativity Group Cambridge, DAMTP Relativity Group Cambridge, Institute of Astronomy ... GRAIL gravitational wave detector , NIKHEF, Netherlands Freiburg, Gravity Imperial College, Theoretical Physics Group Astrophysics Group King's College, London: Mathematics Department Theoretical Physics Group Rome gravitational wave research group Loughborough Relativity Group Newcastle-Upon-Tyne, Nottingham - Mathematical Physics Division Oxford University

64. 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

65. Ultimate Physics An attempt to develop TOE from a geometrical basis. Nature should be developed from the simplest basis. general relativity and Quantum Uncertainty have shown that nonEuclidean space may yield curvature. http://www.ultiphys.com

66. General Relativity And Black Holes A set of notes on aspects of black holes.Category Science Physics relativity Black Holes......general relativity and Black Holes. How is the geometry around a BlackHole? A Black Hole is one of the most fascinating objects http://www.astro.ku.dk/~cramer/RelViz/text/exhib1/exhib1.html

General relativity and Black Holes. How is the geometry around a Black Hole? A Black Hole is one of the most fascinating objects in the universe, and it can be understood on basis of Einstein's general theory of relativity. In the following pages, you will get an impression of how the curvature changes near a Black Hole, what happens when the hole rotates, and what special effects the Black Hole has on particles and light moving close to the Black Hole. I will not go in much detail with the formulas, because the aim of this World Wide Web Exhibition is presentation and graphics. You can, if you want, read all the relevant details about metric tensors of Black Holes in this hypertext about "Geometry Around Black Holes". Instead, I will use some of the fundamental results to get a view of the geometry around a Black Hole. I will concentrate on curvature and the trajectories of relativistic particles. In flat (euclidian) space, bodies move in a background of space and time. Newton called it absolute space and absolute time. Einstein changed this view radically in 1915 when he completed his general theory of relativity which resulted in a unified 4-dimensional space-time . All distances along a world line are called separations , and they are measured by the metric: This metric defines flat Minkowski space-time , and is much like Newtons absolute space plus a time dimension (note the sign of the time is negative).

67. 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 ... Links Department of Physics and Mathematical 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

68. FILE NOT FOUND! Physics simplified! Students will love the unifying equation. Amalgamation of special relativity, general relativity, quantum physics, etcetera. Twin Paradox explained. http://unifiedfieldtheory.bravepages.com/UFT.htm

LOGIN CONTACT US TECH SUPPORT UPGRADE YOUR SITE File Not Found! The file you are searching for is not located on our servers. Please check your spelling. File names may be case sensitive. Please verify the URL as this is the most common reason for this error. If you would like your own 100 MB FREE WEB SITE with a long list of features simply sign up at bravepages.com. LOGIN CONTACT US TECH SUPPORT ... UPGRADE YOUR SITE

69. Unit 57 UNIT 57. THE general THEORY OF relativity. NOTE Only in the last fewyears has the experimental side of general relativity blossomed. We http://astro.physics.sc.edu/SelfPacedUnits/Unit57.html

UNIT 57 THE GENERAL THEORY OF RELATIVITY NOTE: This Unit assumes you have studied Unit 56. GOALS: After mastery of this unit you should: know some of the major predictions of the General Theory know some of the evidence that supports the theory understand how this theory relates to cosmological ideas REFERENCES The essay on the General Theory of Relativity that is attached or available from Kinko's. The following text material: the last part of Chapter 19; portions of Chapters 25, 26 and 27 MASTERY Will be evaluated by a 15 question, multiple-choice evaluation (13 correct responses for mastery) on the following: OBJECTIVES: You should be able to recognize the equivalence or difference in observations made by an observed in a small enclosed box (elevator) which is at rest on the Earth in a rocketship undergoing constant acceleration in space far from other objects freely-falling towards the Earth the following about tidal effects that gravity disappears if you freely-fall, only the tidal effects remain. that the tides are the true effects of gravity a description of the principle of general covariance.

70. Electronic Books - By Professor John W An online draft copy of an undergraduate text book by John Norbury (PDF). http://www.uwm.edu/~norbury/ebooks.html

Electronic Books - by Professor John W. Norbury These books are available to freely download. All are still in progress. Elementary mechanics and thermodynamics (250 pages) Solutions manual for mechanics and thermodynamics (110 pages) Quantum Mechanics for undergraduates (300 pages) Quantum Field Theory (100 pages) General Relativity and Cosmology for undergraduates (100 pages) Classical Electrodynamics for undergraduates (100 apges)

71. 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 spacetime singularities, or, equivalently, there are no black holes. http://monet.physik.unibas.ch/~schatzer/ytg.html

HTTP 200 Document follows Date: Fri, 11 Apr 2003 03:38:34 GMT Server: NCSA/1.5.2 Last-modified: Mon, 25 Sep 2000 15:34:11 GMT Content-type: text/html Content-length: 556 Yilmaz Theory of Gravity This web page has moved to a new address. Please update your links. http://home.sunrise.ch/schatzer/ytg.html Automatically being redirected within a few seconds... (if not, please click on the URL above)

72. 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

73. "The Boundaries Of Nature: Special & General Relativity And Quantum Mechanics, A A second full year course in physics covering special relativity, general relativity,and quantum mechanics would have wide appeal and might also lead to http://www.eftaylor.com/oersted/

"The Boundaries of Nature: Special & General Relativity and Quantum Mechanics, A Second Course in Physics:" Edwin F. Taylor's acceptance speech for the 1998 Oersted medal presented by the American Association of Physics Teachers, 6 January 1998 Edwin F. Taylor Center for Innovation in Learning, Carnegie Mellon University, Pittsburgh, PA 15213 (Now at 22 Hopkins Road, Arlington, MA 02476-8109, email eftaylor@mit.edu) ABSTRACT INTRODUCTION and fixed in me a determination to collaborate with him to develop and write up his insights for the world to enjoy. And, at one remove, John Wheeler's Ph.D. student Richard Feynman, whose thesis led to an introduction to quantum mechanics which now, fifty years later, we can exploit for the benefit of the modern student. These leaders in physics education have much in common: a fascination with the deep structure of Nature, enthusiasm for envisioning this structure in bold new ways, and absolute integrity in presenting both their vision and their own perplexities to an interested audience. All of us can join this enterprise without reservation or restraint, eliminating the need for anyone to express humility, false or otherwise. Here is the plan for this talk: First a brief look at general relativity and quantum mechanics, primarily to highlight how these subjects can be presented with no mathematical formalism beyond calculus. Second, some remarks on the proposed course and its potential benefits for various audiences and for the physics major. Finally, an inspirational conclusion.

74. 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

75. Southampton GR Explorer Home Page An introduction to Einstein's theory of general relativity and related topics. These pages include informative text, pictures and movies. http://www.maths.soton.ac.uk/relativity/GRExplorer/

Welcome to the Southampton GR Explorer. On these pages you will find an overview of Einstein's theory of General Relativity and related topics. We focus on subjects that are close to the research interests of the Southampton group. A more technical description of our various ongoing research projects can be found here This site is best viewed with frames, which are not supported by your browser. You can either: or Internet Explorer alternatively Turn the frames off

76. The Cosmological Constant An overview of why Einstein added an extra term in general relativity, and why it is still examined. http://rainbow.uchicago.edu/~carroll/encyc/

The Cosmological Constant Sean M. Carroll University of Chicago This is a short article I wrote for the Encyclopedia of Astronomy and Astrophysics (Institute of Physics). See also The Preposterous Universe , or related reviews, lectures, and talks Here is the Postscript Version Cosmological Constant The cosmological constant, conventionally denoted by the Greek letter , is a parameter describing the energy density of the vacuum (empty space), and a potentially important contributor to the dynamical history of the universe. Unlike ordinary matter, which can clump together or disperse as it evolves, the energy density in a cosmological constant is a property of spacetime itself, and under ordinary circumstances is the same everywhere. A sufficiently large cosmological constant will cause galaxies to appear to accelerate away from us, in contrast to the tendency of ordinary forms of energy to slow down the recession of distant objects. The value of in our present universe is not known, and may be zero, although there is some evidence for a nonzero value; a precise determination of this number will be one of the primary goals of observational cosmology in the near future. The Cosmological Constant and Vacuum Energy We live in an expanding universe: distant galaxies are moving away from us, such that the more distant ones are receding faster. Cosmologists describe this expansion by defining a

77. General Relativity & Black Holes Gene Smith's Astronomy Tutorial general relativity Black Holes, All of thisamounts to pretty spectacular confirmation of general relativity Theory. http://casswww.ucsd.edu/public/tutorial/GR.html

University of California, San Diego Gene Smith's Astronomy Tutorial Einstein's General Theory of Relativity The General Theory of Relativity is an expansion of the Special Theory to include gravity as a property of space. Start with this Gravity Tutorial The Equivalence Principle The Theory of Special Relativity has as its basic premise that light moves at a uniform speed, c = 300,000 km/s , in all frames of reference. This results in setting the speed of light as the absolute speed limit in the Universe and also produced the famous relationship between mass and energy, E = mc . The foundation of Einstein's General Theory is the Equivalence Principle which states the equivalence between inertial mass and gravitational mass Inertial Mass is the quantity that determines how difficult it is to alter the motion of an object. It is the mass in Newton's Second Law: F = ma Gravitational mass is the mass which determines how strongly two objects attract each other by gravity, e.g. the attraction of the earth: It is the apparent equivalence of these two types of mass which results in the uniformity of gravitational acceleration Galileo's result that all objects fall at the same rate independent of mass: Galileo and Newton accepted this as a happy coincidence, but Einstein turned it into a fundamental principle. Another way of stating the equivalence principle is that gravitational acceleration is indistinguishable from other forms of acceleration. According to this view a student in a closed room could not tell the difference between experiencing the gravitational pull of the earth at the earth's surface and being in a rocketship in space accelerating with a = 9.8 m/s

78. Unit 57 This site contains a comprehensive introduction to the basic ideas and tests of general relativity http://astro.physics.sc.edu/htmlpages/Astronomy/SelfPacedUnits/Unit57.html

UNIT 57 THE GENERAL THEORY OF RELATIVITY NOTE: This Unit assumes you have studied Unit 56. GOALS: After mastery of this unit you should: know some of the major predictions of the General Theory know some of the evidence that supports the theory understand how this theory relates to cosmological ideas REFERENCES The essay on the General Theory of Relativity that is attached or available from Kinko's. The following text material: the last part of Chapter 19; portions of Chapters 25, 26 and 27 MASTERY Will be evaluated by a 15 question, multiple-choice evaluation (13 correct responses for mastery) on the following: OBJECTIVES: You should be able to recognize the equivalence or difference in observations made by an observed in a small enclosed box (elevator) which is at rest on the Earth in a rocketship undergoing constant acceleration in space far from other objects freely-falling towards the Earth the following about tidal effects that gravity disappears if you freely-fall, only the tidal effects remain. that the tides are the true effects of gravity a description of the principle of general covariance.

79. Physics 7 Lecture #12 - General Relativity & Black Holes Physics 7 Lecture Summary 11 general relativity Black Holes, All of thisamounts to pretty spectacular confirmation of general relativity Theory. http://casswww.ucsd.edu/physics/ph7/GR.html

University of California, San Diego Physics 7 - Introduction to Astronomy H. E. Smith Winter 2001 Physics 7 Lecture Summary #11 Einstein's General Theory of Relativity The General Theory of Relativity is an expansion of the Special Theory to include gravity as a property of space. Start with this Gravity Tutorial The Equivalence Principle The Theory of Special Relativity has as its basic premise that light moves at a uniform speed, c = 300,000 km/s , in all frames of reference. This results in setting the speed of light as the absolute speed limit in the Universe and also produced the famous relationship between mass and energy, E = mc . The foundation of Einstein's General Theory is the Equivalence Principle which states the equivalence between inertial mass and gravitational mass Inertial Mass is the quantity that determines how difficult it is to alter the motion of an object. It is the mass in Newton's Second Law: F = ma Gravitational mass is the mass which determines how strongly two objects attract each other by gravity, e.g.

80. 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. http://einstein.stanford.edu/

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