101. General Relativity And Cosmology For Undergraduates An online draft copy of an undergraduate text book by John Norbury (PDF). http://books.pdox.net/Physics/General Relativity and Cosmology for undergraduate

102. Einstein's 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. http://www.drphysics.com/relativity.html

Theory of Relativity What are black holes? What does E=mc mean? How did the Universe begin? How will it end? How is the twin paradox resolved? Learn about Einstein's Theory of Relativity online and find the answers to these questions about the fundamental nature of matter and energy in the Universe. To find out more about the class, go to the Syllabus For a list of suggested readings, click here: Readings Worried about math? Fear not, and click here: Math Get fun, but useless, stuff at the Relativity Store Register for the class at Seattle Teachers College Rated for content by Internet Content Rating Association Made with 100% recycled materials. No electrons were destroyed to make this website. DrPhysics Home Syllabus Readings Math ... Physics Links E-mail the instructor at (Hubble Deep Field graphic courtesy of NASA , 1996). For more information about this image, click here

103. General Relativity Around The World general relativity around the world. relativity Servers. NCSA relativity Group; Gravitational Physics relativity Aristotle University of Thessaloniki. http://www.astro.auth.gr/Science-Subjects/Gravity/Gravity_Links1.html

General Relativity around the world Relativity Servers NCSA Relativity Group Aristotle University of Thessaloniki. HyperSpace at QMW Malcolm MacCallum's Server Center for Relativity at Austin, Texas. Center for Gravitational Physics and Geometry , Penn State University. Pittsburgh Relativity Group University of Pittsburgh. Cardiff Relativity Group University of Wales, College of Cardiff. Hyperspace at UBC University of British Columbia. Mathematical Relativity Australian National University Southhampton Relativity Gopher University of Southhampton. LIGO California and Massachusetts Institutes of Technology Balearic Islands University. SIGRAV CIAR Cosmology Program Canadian Institute of Advanced Research Tufts Institute of Cosmology Syracuse University Relativity Group University of New Brunswick Relativity Montana State University Physics Department University of Maryland Physics Department Imperial College of Science, Technology and Medicine University of British Columbia Hyperspace at UBC Pisa-VIRGO Interferometer Home Page Wake Forest University Univeristy of Newcastle Relativity and Quantum Fields Relativistic Movies (Tuebingen) LSU Gravity Wave Experiment Home Page GR : Hyperspace Form interface to search MacCallum's lists.

104. Reflections On Relativity Comprehensive presentation of the special and general theories of relativity. http://www.mathpages.com/rr/rrtoc.htm

Reflections on Relativity Contents Preface 1. First Principles Experience and Spacetime Systems of Reference Inertia and Relativity The Dilemma of Light ... Null Coordinates 2. A Complex of Phenomena The Spacetime Interval Force Laws and Maxwell's Equations The Inertia of Energy Doppler Shift for Sound and Light ... Thomas Precession 3. Several Valuable Suggestions Postulates and Principles Natural and Violent Motions De Mora Luminis Stationary Paths ... Constructing the Principles 4. Weighty Arguments Immovable Spacetime Inertial and Gravitational Separations Free-Fall Equations Force, Curvature, and Uncertainty ... The Breakdown of Simultaneity 5. Extending the Principle Absorbing Acceleration Tensors, Contravariant and Covariant Curvature, Intrinsic and Extrinsic Relatively Straight ... The Field Equations 6. Ist Das Wirklich So? An Exact Solution Anomalous Precession Bending Light Radial Paths in a Spherically Symmetrical Field ... Sources in Motion 7. Cosmology Is the Universe Closed? The Formation and Growth of Black Holes Falling Into and Hovering Near A Black Hole Curled-Up Dimensions ... Global Interpretations of Local Experience 8. The Secret Confidence of Nature Kepler, Napier, and the Third Law

105. The Foundation Of The General Theory (1 To 3, Of 22, 1916) now show that we must put it aside and replace it by a more general view, in order to be able to carry through the postulate of general relativity, if the http://home8.swipnet.se/~w-80790/Works/Einstein.htm

106. Relativity Tutorial general relativity. For (much) more online information about gravity and spacetime, see John Baez s general relativity Tutorial or the relativity FAQ. http://www.astro.ucla.edu/~wright/relatvty.htm

Relativity Tutorial Galilean Relativity Relativity can be described using space-time diagrams . Contrary to popular opinion, Einstein did not invent relativity. Galileo preceded him. Aristotle had proposed that moving objects (on the Earth) had a natural tendency to slow down and stop. This is shown in the space-time diagram below. Note the curved worldline above. This shows a variable velocity, or an acceleration . Galileo objected to Aristotle's hypothesis, and asked what happened to an object moving on a moving ship. Now it is still moving in its final state. Galileo proposed that it is only relative velocities that matter. Thus a space-time diagram can be transformed by painting it on the side of a deck of cards, and then skewing the deck to one side but keeping the edges along a straight line: Straight worldlines (unaccelerated particles) remain straight in this process. Thus Newton's First Law is preserved, and non-accelerated worldlines are special. This Galilean transformation does not affect the time. Thus two observers moving with respect to each other can still agree on the time, and thus the distance between two objects, which is the difference in their positions measured at equal times, can be defined. This allowed Newton to describe an inverse square law for gravity. But Galilean transformations do not preserve velocity. Thus the statement "The speed limit is 70 mph" does not make sense but don't try this in court. According to relativity, this must be re-expressed as "The magnitude of the relative velocity between your car and the pavement must be less than 70 mph". Relative velocities are OK.

107. General Relativity And Quantum Cosmology Tenth Marcel Grossmann Meeting on general relativity Translate this page Esta página usa quadros mas seu navegador não aceita quadros. http://xxx.lanl.gov/archive/gr-qc

General Relativity and Quantum Cosmology (since 7/92) index to gr-qc titles/authors get gr-qc/abstract help e-Prints are available for the following years: Additional: new gr-qc papers received (most recent mailing) recent gr-qc listings current month's gr-qc listings lastupdate of daily changes to gr-qc database (ftp format) some info for gr-qc Links to: arXiv gr-qc find abs

108. Redirect 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. http://members.aol.com/drphysics/

This page has moved to http://www.drphysics.com please update your bookmarks.

109. Physics: Albert Einstein Theory Of Relativity: WSM In Absolute Space Explains Al Albert Einstein Theory of relativity, Physics Albert Einstein s Theory of Special and general relativity is explained by the Spherical Standing Wave Structure http://www.spaceandmotion.com/Physics-Albert-Einstein-Theory-Relativity.htm

Introduction Introduction to Albert Einstein's Theory of Relativity Principles in Theoretical Physics WSM Principles ... Top of Page Albert Einstein's Theory of Relativity Historical Analysis, Explanation of Albert Einstein's Special and General Relativity When forced to summarize the general theory of relativity in one sentence: Time and space and gravitation have no separate existence from matter. (Albert Einstein) Physics constitutes a logical system of thought which is in a state of evolution, whose basis (principles) cannot be distilled, as it were, from experience by an inductive method, but can only be arrived at by free invention. The justification (truth content) of the system rests in the verification of the derived propositions (a priori/logical truths) by sense experiences (a posteriori/empirical truths). ... Evolution is proceeding in the direction of increasing simplicity of the logical basis (principles). .. We must always be ready to change these notions - that is to say, the axiomatic basis of physics - in order to do justice to perceived facts in the most perfect way logically. Albert Einstein , Physics and Reality, 1936) Navigation: Please click Anchor Links to go to Page Headings (then scroll down Contents).

110. Physics 7 Main Page 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 nonmajors, with little math but some very nice graphics. http://phyun5.ucr.edu/~wudka/physics7.html

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111. Spacetime 101 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. http://www.theory.caltech.edu/people/patricia/st101.html

Here's 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. What is spacetime? Why was Einstein's Special Theory of Relativity needed? How does Einstein's Special Theory of Relativity work? What is "causality" and what does it have to do with time travel? ... Go back to Time Travel in Flatland.

112. Einstein An introduction to general relativity http://math.ucr.edu/home/baez/einstein/einstein.html

Next: Introduction The Meaning of Einstein's Equation John C. Baez Department of Mathematics, University of California Riverside, California 92521 USA email: baez@math.ucr.edu March 10, 2001 Also available in Postscript. Abstract: This is a brief introduction to general relativity, designed for both students and teachers of the subject. While there are many excellent expositions of general relativity, few adequately explain the geometrical meaning of the basic equation of the theory: Einstein's equation. Here we give a simple formulation of this equation in terms of the motion of freely falling test particles. We also sketch some of its consequences, and explain how the formulation given here is equivalent to the usual one in terms of tensors. Finally, we include an annotated bibliography of books, articles and websites suitable for the student of relativity. Introduction Preliminaries Einstein's Equation Some Consequences ... home

113. Special And General Relativity - New Mathematical Formulations Presentation of new mathematical formulations for both the Special and general Theories of relativity. http://www.relativitydomains.com

SPECIAL AND GENERAL RELATIVITY - NEW MATHEMATICAL FORMULATIONS The purpose of this site is the presentation of a new simplified mathematical formulation of Albert Einstein's Special Theory of Relativity, and the introduction of a new theory of Gravity. The content is therefore of a technical nature, requiring a good knowledge of mathematics, physics and applied mechanics up to graduate level. Links to Papers etc RELATIVITY GRAVITY COSMOLOGY Links to other web sites of a related nature Links PDF versions of all papers PDF The current literature on these theories primarily works with such techniques as Riemannian Geometry and the Tensor Calculus etc., and while these are extremely powerful mathematical tools, they are also very complex. Therefore, when applied to Einstein's two most well known theories, they result in a formulation quite difficult to follow for even the most accomplished post graduate student. In the presentations here, nothing more complex than first and second order differential equations of functions of a complex variable are used to initially develop the above theories from first principles. This forms the basis from which additional papers are developed extending the technique into further relativistic, gravitational and cosmological matters. The latter includes the development of a mathematically rigorous new theory for the origin and existence of the Universe. Note - In some papers the mathematical nomenclature uses a special font to represent a certain parameter. Within the text this may not display correctly, being replaced by a standard font, (For those who wish to display this parameter correctly, the necessary font is here

114. General Relativity And Black Holes general relativity and Black Holes. How is the geometry around a Black Hole? 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).

115. SIGRAV Top/Science/Physics/relativity/Research_Groups http://www.sigrav.unige.it/

Write to our Secretary Scientific Internet sites: McCallum Archive NCSA Relativity Center Grav. Phys. PittsburghRelativity ... ICRA The Italian Society of General Relativity and Gravitation Via Carlo Alberto 10 , 10100 TURIN, ITALY The SIGRAV Executive Board The SIGRAV was founded in 1990 to contribute to the development of the researches on General Relativity and Gravitational Physics, including their mathematical, theoretical, experimental topics and their applications. T he SIGRAV Conferences. The SIGRAV Graduate Schools in contemporary Relativity and Gravitational Physics. The VIRGO-SIGRAV School on Gravitational Waves. ... SIGRAV Activities and info. What's NEW? International call for papers! here details. SIGRAV 2004 Conference in Vietri sul Mare. The poster SIGRAV 2003 Schools ... 2002 SIGRAV Prizes !

116. General Relativity, Gravitation And Cosmology WWW Sites general relativity, Gravitation and Cosmology WWW sites. Australasia Australasian 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

117. Alternative Relativitätstheorie, Einie Emissionstheorie. Alternative To Relativ Extinction Shift Principle, the Most Recent Emission Theory; Alternative to both general and Special relativity in the Electrodynamics of Galilean Transformations for the first time formulated in the intuitive framework of Euclidean Space Geometry alone. http://www.extinctionshift.com

alternative emissionstheorie Extinction Shift Principle A pure classical physics look at Electromagnetism and Gravitation in Euclidean Space Emission and Re-emission done correctly!!! derived with No Relativity, No Ether, No non-conventional Physics using step-by-step clear classical approaches only in a recently published book! A Mathematical Proof Step-by-step Pure Classical solutions under Galilean Transformations of Velocities applied to the Rectilinear Motion of Gravitons and Photons in the frame work of Euclidean Space Geometry Supported by the past century of important experiments in optics and recent observational evidence in astrophysics For nearly a century now, there has been absolutely NO concrete, pure classical treatment to the physics problems pertaining to significant fractions of the velocity of light. Until now, NO alternative methods had been presented that use pure Galilean Electrodynamics in Euclidean Space , which are explainable with simple, intuitive measures without having to resort to the usual framework of Special and General Relativity!

118. General Theory Of Relativity In 1915 Einstein developed the theory of general relativity in which he considered objects accelerated with respect to one another. http://www.levity.com/mavericks/general.htm

General Theory of Relativity In 1915 Einstein developed the theory of general relativity in which he considered objects accelerated with respect to one another. He developed this theory to explain apparent conflicts between the laws of relativity and the law of gravity. To resolve these conflicts he developed an entirely new approach to the concept of gravity, based on the principle of equivalence. The principle of equivalence holds that forces produced by gravity are in every way equivalent to forces produced by acceleration, so that it is theoretically impossible to distinguish between gravitational and accelerational forces by experiment. In the theory of special relativity, Einstein had stated that a person in a closed car rolling on an absolutely smooth railroad track could not determine by any conceivable experiment whether he was at rest or in uniform motion. In general relativity he stated that if the car were speeded up or slowed down or driven around a curve, the occupant could not tell whether the forces so produced were due to gravitation or whether they were acceleration forces brought into play by pressure on the accelerator or on the brake or by turning the car sharply to the right or left. Acceleration is defined as the rate of change of velocity. Consider an astronaut standing in a stationary rocket. Because of gravity his or her feet are pressed against the floor of the rocket with a force equal to the person's weight

119. Spacetime Relativity This is an alternate cosmology not based on general relativity. http://spacetimerelativity.com

Cosmology - The science or theory of the universe as an ordered whole, and of the general laws which govern it. Also, a particular account or system of the universe and its laws. - Oxford English Dictionary Welcome to my web site! This site was developed to share a different cosmology with people who are interested. We are in a golden age of astronomy and cosmology. New observations and data about the universe are coming in at a fast rate. My ideas, are mostly qualitative in nature, and are speculative. The hypothesis is called Spacetime Relativity and is very similar to the Big Bang theory, but uses a different interpretation of the cosmological redshift. I have tried to develop more quantitative ideas to test my hypothesis over the past year, which I have included in the most recent version of spacetime relativity. A new idea has little value to science if it cannot be tested in some way. A few alternate cosmologies have offered very little competition to the Big Bang theory, because any new idea needs to be consistent with current observations. Basically the hypothesis is very similar to the Big Bang with a few key differences. The nature of Time and Space being the biggest differences.* I have been asked a few questions over the past few months so I have added another page (More on Time) concerning time. Hope this will clear up some of the questions.

120. A First Look At Relativity And Gravitation 29th Jan. 99, lectures 5 Special relativity and Kinematics Rephrasing Newton and 99. lectures 8 Computing in Curved Spacetime 1 general Spacetimes and 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

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