1. Theory Of Relativity - Wikipedia, The Free Encyclopedia The theory of relativity, or simply relativity, refers specifically to two theories of Albert Einstein special relativity and general relativity. http://en.wikipedia.org/wiki/Theory_of_relativity

Theory of relativity From Wikipedia, the free encyclopedia Jump to: navigation search Two-dimensional projection of a three-dimensional analogy of space-time curvature described in General Relativity. The theory of relativity , or simply relativity , refers specifically to two theories of Albert Einstein special relativity and general relativity . However, "relativity" can also refer to Galilean relativity The term "theory of relativity" was coined by Max Planck in 1908 to emphasize how special relativity (and later, general relativity) uses the principle of relativity Contents Special relativity General relativity References and links External links ... edit Special relativity Main article: Special relativity Special relativity is a theory of the structure of spacetime . It was introduced in Albert Einstein 's 1905 paper " On the Electrodynamics of Moving Bodies ". Special relativity is based on two postulates which are contradictory in classical mechanics The laws of physics are the same for all observers in uniform motion relative to one another ( Galileo 's principle of relativity The speed of light in a vacuum is the same for all observers, regardless of their relative motion or of the motion of the source of the

2. Relativity Tutorial An introduction to relativity using spacetime diagrams. 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.

3. Relativity Technologies: The Global Leader In Enterprise Application Modernizati relativity Technologies is the leading provider of Enterprise Application Modernization and Application Portfolio Management solutions. http://www.relativity.com/

@import url("nav/nav.css"); Enterprise Application Modernization Business Solutions Service Solutions Solution White Papers ... Boost the agility and efficiency of global application sustaining activities. Modernization Papers More on SOA More on Application Portfolio Management Access Additional Modernization Papers News Modernization Workbench Enterprise Edition Released Modernization Workbench Enterprise Edition enables global and outsourced development teams to better govern, maintain, and modernize sophisticated application portfolios Aberdeen Group Benchmarks SOA Performance Study benchmarks how best-in-class are measuring and tracking the performance of their service oriented architecture enabled applications Software AG Selects Relativity Technologies Software AG Expands Application Modernization portfolio with Relativity Technologies partnership click here

4. Relativity --  Britannica Online Encyclopedia Britannica online encyclopedia article on relativity wideranging physical theories formed by the German-born physicist Albert Einstein. http://www.britannica.com/eb/article-9109465/relativity

var britAdCategory = "other"; Already a member? LOGIN Encyclopædia Britannica - the Online Encyclopedia Home Blog Advocacy Board ... Free Trial Britannica Online Content Related to this Topic This Article's Table of Contents Expand all Collapse all Introduction Cosmology before relativity The mechanical universe Light and the ether Special relativity Einstein's Gedankenexperiments Starting points and postulates Consequences of the postulates Relativistic space and time Relativistic mass Cosmic speed limit The twin paradox Four-dimensional space-time Experimental evidence for special relativity General relativity Roots of general relativity Principle of equivalence Curved space-time and geometric gravitation The mathematics of general relativity ... Experimental evidence for general relativity Unconfirmed predictions of general relativity Gravitational waves Black holes and wormholes Applications of relativistic ideas Elementary particles ... Relativity, quantum theory, and unified theories Intellectual and cultural impact of relativity Reactions in general culture Philosophical considerations Additional Reading Print this Table of Contents Shopping New! Britannica Book of the Year

5. Einstein, Albert. 1920. Relativity: The Special And General Theory Online publication of the 1920 edition of Albert Einstein s relativity. http://www.bartleby.com/173/

Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia Cultural Literacy World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations Respectfully Quoted English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Nonfiction Albert Einstein Who would imagine that this simple law [constancy of the velocity of light] has plunged the conscientiously thoughtful physicist into the greatest intellectual difficulties? Chap. VII

6. General Relativity This is a basic postulate of the Theory of General relativity. It states that a uniform gravitational field (like that near the Earth) is equivalent to a http://archive.ncsa.uiuc.edu/Cyberia/NumRel/GenRelativity.html

Forward Back Up Map ... Information General Relativity Einstein's 1916 paper on General Relativity In 1916 Einstein expanded his Special Theory to include the effect of gravitation on the shape of space and the flow of time. This theory, referred to as the General Theory of Relativity , proposed that matter causes space to curve. JPEG Image Embedding Diagrams Picture a bowling ball on a stretched rubber sheet. GIF Image The large ball will cause a deformation in the sheet's surface. A baseball dropped onto the sheet will roll toward the bowling ball. Einstein theorized that smaller masses travel toward larger masses not because they are "attracted" by a mysterious force, but because the smaller objects travel through space that is warped by the larger object. Physicists illustrate this idea using embedding diagrams Contrary to appearances, an embedding diagram does not depict the three-dimensional "space" of our everyday experience. Rather it shows how a 2D slice through familiar 3D space is curved downwards when embedded in flattened hyperspace. We cannot fully envision this hyperspace; it contains seven dimensions, including one for time! Flattening it to 3D allows us to represent the curvature. Embedding diagrams can help us visualize the implications of Einstein's General Theory of Relativity. The Flow of Spacetime Another way of thinking of the curvature of spacetime was elegantly described by Hans von Baeyer. In a prize-winning

7. Cambridge Relativity Various pages with nontechnical texts about cosmology, black holes, cosmic strings, inflation, quantum cosmology, and string theory, written by members of http://www.damtp.cam.ac.uk/user/gr/public/

National Cosmology Supercomputer Cosmology Black holes Cosmic strings National Cosmology Supercomputer Cosmology Black holes Cosmic strings ... [Next]

8. Escher's "Relativity" In LEGO Escher s relativity in LEGO®. Because The LEGO Company get paranoid about this sort of thing let me The original Escher picture (relativity, 1953. http://www.andrewlipson.com/escher/relativity.html

Escher's "Relativity" in LEGO® Because The LEGO Company get paranoid about this sort of thing let me make it clear that I have no affiliation with them, that my views are my own and do not necessarily represent theirs, and so on. So if you think any of this is official you are as deluded as they are. Click on the picture or here for a bigger version (about 410K) Daniel Shiu and I worked on this as a joint project after we finished our rendition of Escher's "Ascending and Descending" , making it our fourth Escher picture rendered in LEGO. Once again, no camera tricks, but the picture has to be taken from exactly the right place, and boy did we get tired of trying to find where that place was. The whole thing took five or six evenings spread over two or three weeks. Most of the last evening was taken up with setting up the lighting the way we wanted it and trying to get the camera position just right The original Escher picture ( Relativity , 1953. Lithograph) is shown on the right for comparison.

9. Relativity Provides information on the history, experiments and paradoxes of relativity. http://nobelprize.org/educational_games/physics/relativity/

Nobel Foundation Nobel Media Nobel Museum Nobel Peace Center ... Prize in Economics Relativity The theory of special relativity (or special relativity for short) was established in 1905 by the famous physicist Albert Einstein at the age of 26. Special relativity is of importance in the realm of high relative velocities. It has been thoroughly verified on numerous occasions and has always stood up to the critical tests. Special relativity is now a tool at work, almost daily, in the scientists' calculations and laboratories. For users: 18 + Credits: Produced by Nobel Web AB in collaboration with Tommy Ohlsson Relativity is presented with the support of The Knut and Alice Wallenberg Foundation. Printer Friendly Tell a Friend Educational Games - The Nobel Prize in Physics The Integrated Circuit Laser Liquid Crystals The Transistor Simulations Microscopes Readings Accelerators Energy from Matter Imaging Life Observing the World of Particles ... X-rays About the Educational Outreach Program Read about the Educational Outreach Program Teachers' Questionnaire Global Sponsor Our Sponsors var so = new SWFObject("/images/shortcuts/shortcut_lessing.swf?rand=842", "Flash", "160", "260", "8.0.24.0"); so.addParam("quality", "best"); so.addVariable("CalendarDate", "2008-03-31"); so.write("banner_zone842");

10. General Relativity General relativity is a theory of gravitation and to understand the background to the theory we have to look at how theories of gravitation developed. http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/General_relativity.html

General relativity Mathematical Physics index History Topics Index Version for printing General relativity is a theory of gravitation and to understand the background to the theory we have to look at how theories of gravitation developed. Aristotle 's notion of the motion of bodies impeded understanding of gravitation for a long time. He believed that force could only be applied by contact; force at a distance being impossible, and a constant force was required to maintain a body in uniform motion. Copernicus 's view of the solar system was important as it allowed sensible consideration of gravitation. Kepler 's laws of planetary motion and Galileo 's understanding of the motion and falling bodies set the scene for Newton 's theory of gravity which was presented in the Principia in 1687. Newton 's law of gravitation is expressed by F G M M d where F is the force between the bodies of masses M M and d is the distance between them. G is the universal gravitational constant. After receiving their definitive analytic form from Euler Newton 's axioms of motion were reworked by Lagrange Hamilton , and Jacobi into very powerful and general methods, which employed new analytic quantities, such as potential, related to force but remote from everyday experience.

11. Special Relativity Tutorial explains about the postulates, paradox, simulaneity, time dilation, Lorentz transformation constructions, spacetime wheel, http://casa.colorado.edu/~ajsh/sr/sr.shtml

Special Relativity These pages are ok as far as they go, but they are missing the planned highlight, to show you what things actually look like when you travel at near the speed of light. I hope to have the opportunity to develop these pages further as time permits. Here is my opinionated Guide to Special Relativistic Flight Simulator Sites Meanwhile, these pages comprise an animated introduction to the elements of Special Relativity. Some of the fun stuff: Rotating 4D hypercube (46K GIF movie) Rotating spacetime wheel Here's the Lorentz-contracted cartwheel And don't miss Prasenjit Saha's Interactive Lorentz Transformations . These pages last modified 6 Feb 1999. Here's a site history Forward to The Postulates of Special Relativity Hey, get me back to Falling into a Black Hole Unless otherwise stated, clicking on images gives you enlarged versions thereof, which may be easier to view in a classroom environment. The enlarged images have the same resolution as the normal images. Special Relativity: Index The Postulates of Special Relativity The postulates of special relativity 1. The Geometry of Spacetime

12. "Relativity" (1996) Created by Jason Katims. With David Conrad, Cliff De Young, Mary Ellen Trainor. Visit IMDb for Photos, Showtimes, Cast, Crew, Reviews, Plot Summary, http://www.imdb.com/title/tt0115332/

Now Playing Movie/TV News My Movies DVD New Releases ... search All Titles TV Episodes My Movies Names Companies Keywords Characters Quotes Bios Plots more tips SHOP RELATIVITY Amazon.com Amazon.ca Amazon.co.uk Amazon.de ... IMDb Quicklinks main details combined details full cast and crew company credits episode list episodes cast user comments awards user ratings recommendations message board plot summary plot keywords movie connections merchandising links release dates technical specs miscellaneous Top Links trailers and videos full cast and crew trivia official sites ... memorable quotes Overview main details combined details full cast and crew company credits ... memorable quotes Fun Stuff trivia goofs soundtrack listing crazy credits ... FAQ Other Info merchandising links box office/business release dates filming locations ... news articles Promotional taglines trailers and videos posters photo gallery External Links showtimes official sites miscellaneous photographs ... video clips advertisement photos board trailer details Register or login to rate this title User Rating: 50 votes more Overview Creator: Jason Katims more Seasons: more Release Date: 24 September 1996 (USA) more Genre: Drama more Plot Summary: Soap opera about twenty-something lovers who meet in Italy and continue their romance at home in the United States...

13. NOVA | Einstein's Big Idea | Relativity (Lightman Essay) | PBS Physicist and science writer Alan Lightman describes how Einstein s general theory of relativity laid the foundation for cosmology. http://www.pbs.org/wgbh/nova/einstein/relativity/

var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); Relativity and the Cosmos by Alan Lightman Einstein's Big Idea homepage In November of 1919, at the age of 40, Albert Einstein became an overnight celebrity, thanks to a solar eclipse. An experiment had confirmed that light rays from distant stars were deflected by the gravity of the sun in just the amount he had predicted in his theory of gravity, general relativity. General relativity was the first major new theory of gravity since Isaac Newton's more than 250 years earlier. Einstein became a hero, and the myth-building began. Headlines appeared in newspapers all over the world. On November 8, 1919, for example, the London Times had an article headlined: "The Revolution In Science/Einstein Versus Newton." Two days later, The New York Times ' headlines read: "Lights All Askew In The Heavens/Men Of Science More Or Less Agog Over Results Of Eclipse Observations/Einstein Theory Triumphs." The planet was exhausted from World War I, eager for some sign of humankind's nobility, and suddenly here was a modest scientific genius, seemingly interested only in pure intellectual pursuits. The essence of gravity What was general relativity? Einstein's earlier theory of time and space, special relativity, proposed that distance and time are not absolute. The ticking rate of a clock depends on the motion of the observer of that clock; likewise for the length of a "yardstick." Published in 1915, general relativity proposed that gravity, as well as motion, can affect the intervals of time and of space. The key idea of general relativity, called the equivalence principle, is that gravity pulling in one direction is completely equivalent to an acceleration in the opposite direction. A car accelerating forwards feels just like sideways gravity pushing you back against your seat. An elevator accelerating upwards feels just like gravity pushing you into the floor.

14. Reflections On Relativity A comprehensive introduction to the theory of relativity and its historical development. http://www.mathpages.com/rr/rrtoc.htm

Reflections on Relativity Preface 1. First Principles Experience and Spacetime Systems of Reference Inertia and Relativity The Relativity 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 Vis Inertiae 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

15. Theory: Special Relativity (SLAC VVC) A brief overview of the theory of special relativity, and how it pertains to particles at SLAC (Stanford Linear Accelerator) http://www2.slac.stanford.edu/vvc/theory/relativity.html

Skip to main content. SLAC Home SLAC Today For Staff ... VVC Virtual Visitor Center at SLAC Main Topics Home Accelerator Detectors Experiments ... Theory Interactive Areas EGS GLAST LAT LAT instrument GLAST LAT Simulator ... Cosmic Ray Detector Guided Tour Quick Bits Introduction to Cosmic Rays Environment Glossary More Educational Sites ... Site Map document.write('') Special Relativity Newton's laws of motion give us a complete description of the behavior moving objects at low speeds. The laws are different at speeds reached by the particles at SLAC. Einstein's Special Theory of Relativity describes the motion of particles moving at close to the speed of light. In fact, it gives the correct laws of motion for any particle. This doesn't mean Newton was wrong, his equations are contained within the relativistic equations. Newton's "laws" provide a very good approximate form, valid when v is much less than c . For particles moving at slow speeds (very much less than the speed of light), the differences between Einstein's laws of motion and those derived by Newton are tiny. That's why relativity doesn't play a large role in everyday life. Einstein's theory supercedes Newton's, but Newton's theory provides a very good approximation for objects moving at everyday speeds. Einstein's theory is now very well established as the correct description of motion of relativistic objects, that is those traveling at a significant fraction of the speed of light.

16. General Relativity Tutorial Highly recommendable collection of interconnected web pages that serve as an informal introduction to general relativity. While some mathematics is used, http://math.ucr.edu/home/baez/gr/

The General Relativity Tutorial John Baez This is bunch of interconnected web pages that serve as an informal introduction to that beautiful and amazingly accurate theory of gravity called general relativity . The goal is to explain the basic equation in this theory - Einstein's equation - with a minimum of fuss and muss. If you want, you can dive right in and read the adventures of Oz and the Wizard This is the fun part! In these tales, the hapless peasant Oz learns general relativity from a grumpy but powerful wizard. But, unless you are already familiar with general relativity, to follow these adventures you'll need to look at other material from time to time, like this: Short Course Outline Clicking on any of the underlined key concepts will then take you to the corresponding point in this more detailed Long Course Outline When you're here, clicking on any underlined key concept takes you to a still more detailed exposition of that concept. A more formal presentation of all this material can be found here: The Meaning of Einstein's Equation including some extra stuff, but leaving out many other things.

17. Relativity: Einstein's Theory Of Relativity In Animations And Film Clips. Einste relativity Einstein s theory of special relativity in multimedia tutorial. The introductory level takes 10 minutes, but has links to over 40 explanatory http://www.phys.unsw.edu.au/einsteinlight/

Relativity in brief... or in detail. Einstein's theory of special relativity includes electricity and magnetism in a simple, logical extension of the relativity of Galileo and Newton. Its conclusions, including time dilation, length contraction, and E=mc have changed profoundly our ideas of time and space, matter and energy. These multimedia modules ( click on menu above right ) give a brief overview of relativity - they present the main ideas. Inevitably, you will have questions. So the related links (below) give more complete explanations, at levels with ( ) or without mathematics ( Animations from Einstein Light require the Flash 6 Plugin . The multimedia modules have animations and film clips and are typically 2Mb. The much smaller HTML versions have only text and images. (If your connection is slow, you might read some of the background links while the modules load.) Related Links for each module:- 1. GALILEO - Mechanics and Galilean relativity

18. The Light Cone - An Illuminating Introduction To Relativity (by Rob Salgado) Introduces the basic principles of relativity, the physics of special relativity, and some basic principles of general relativity. http://www.phy.syr.edu/courses/modules/LIGHTCONE/

Module Content Updated: 4 Dec 2001 Module Content Updated: 2 Jun 1997 Homepage Last modified: Sat Apr 30 00:39:35 2005 click to see this Light Cone rendered in VRML The Light Cone an illuminating introduction to relativity Rob Salgado (salgado@physics.syr.edu) What's new For a new visualization of the Twin Paradox, visit Visualizing Proper Time in Special Relativity [with LightClocks] Older, but still useful: Twin Paradox java applet Animations are available in MPEG and animated-GIF formats. Since March 13, 1996, you are visitor number PREFACE Introduction Unfamiliar Quotations English-Spacetime-Geometry Dictionary PRIMEVAL RELATIVITY EVENTS and SPACETIME Aristotle's Spacetime Introducing the PRINCIPLE OF RELATIVITY: Galileo's Spacetime ... Newton and His Mechanical Laws of Motion SPECIAL RELATIVITY Maxwell and The Electrodynamic Theory of Light Introducing the LIGHT CONE: The Einstein-Minkowski Spacetime Soap Box Seminar Series: The Twin Non-Paradox ... A more illuminating look at the LIGHT CONE GENERAL RELATIVITY Newton, Galileo, and The Laws of Gravitation

19. Tensors And Relativity A complete online course in tensors and relativity. http://www.mth.uct.ac.za/omei/gr/

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20. The Truth About Relativity. It Contradicts Basic Logic And Uses Corruptible Minu relativity contradicts logic in ways which are not allowed anyplace else. http://www.nov55.com/eins.html

Science is Broken Gary Novak Independent Scientist Science Home Basic Reality Overview Why Truth ... Fluoride The Truth about Relativity 1. The velocity of light is constant. But relative to what? According to physicists, relative to receiving points. But that is an impossibility; and relativity is an attempt to rationalize that impossibility. 3. It is logic which determines truth, not observations. Observations can be false and misinterpreted, while logic defines universal, objective and natural laws. There is a very basic and extreme contradiction in logic in the claim that the receiving point of light determines the velocity. Relativity contradicts logic in ways which are not allowed anyplace else. Near the origin of relativity is the claim that the velocity of light is determined by the receiving point. Effect supposedly precedes cause. Everyone knows something cannot be caused after it occurs. That claim is not allowed anyplace. (explained by Tom Van Flandern The logic is that the velocity of light cannot be determined by the emitting point (such as a star), because it would then have different velocities for different sources, which are not found. Notice that the same would be true of receiving points, because they have different velocities also. Relativity requires light to have an infinite number of velocities simultaneously, which contradicts conservation laws and everything else about waves and how they are produced.

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