121. General Relativity This Web site describes the life, works, and legacy of Einstein. It includes features such as a bulletin board dedicated to Einstein and physics as well as an online quiz to http://library.thinkquest.org/17508/Generalrelativity.html

His Works G eneral Relativity I ntroduction H is Life ... No Java version Text version Topics on this Page Basis Acceleration Curvature Spacetime ... Gravitons Links to other Pages http://www.geocities.com/ CapeCanaveral/Hangar/ 6469/ein.htm Great Einstein site by A.E with a descriptive biography, details of major works, pictures, links, quotes ... Porteugeuse Einstein Page Glossary Window] [ Timeline Window] Basis: Acceleration Einstein continued working in all three fields explored in his 1905 papers and made important contributions to other fields, but he increasingly sought to expand special relativity to include the effects of acceleration. He found the key to this problem in principle of equivalence, by which gravitational mass (mass related to having a gravitational field) is indistinguishable from inertial mass (mass of accelerating in empty space). This means that there is no difference between the effects of standing on Earth and accelerating at approximately 9.8 meters per second squared. His theory, now known as the General Theory of Relativity, was published in late 1915. He later said of the labor behind devising this remarkable theory The years of anxious searching in the dark, with their intense longing, their alternations of confidence and exhaustion, and the final emergence into lightonly those who have experienced it can understand that.

122. The Covert Comic CIA-related humor by a true CIA officer. http://www.covertcomic.com/

The Covert Comic Home Page Th e Naked Intelligence Officer My W ... crets of 9/11 (Recently unclassified!) Shoe Bomb of Life Spaiku! (CIA haiku poetry from The Covert Comic! "Spooky" - USA Today) Black Matters (The world's most classified poetry) Intelligence Underground (The spookiest of the spooks) Form 22C: Questioning Authority PETA: People for the Ethical Treatment of Americans Covert Press Releases (Send them and win Disclosures (What is Secret Zero Intelligence Agents (Links to Covert Comic-approved sites) Contact The Covert Comic What's New with The Covert Comic! (Note: cleared readers only, please.) Monday There's nothing more embarrassing than strolling into the office humming 'It's a Hap-Hap-Happy Day,' then hearing the hushed whispers of co-workers and realizing: it's only a hap-happy day. Tuesday Come to think of it, having a bottle in front of me, and a frontal lobotomy, really aren't all that different. Wednesday Motivational Secret of the Week How much of your 'to do' list is really a 'to have done to me' list?

123. The Best Funny Jokes Site Online, JokeChest.com Jokes relating to different jobs and professions, plus some general humor. http://www.jokechest.com/

Random Joke Hot 100 Jokes Submit a Joke Add To Favorites Submitted Jokes Accountant Blond Artist ... Waiter Other Great Sites JokeChest's Funny Jokes Welcome to Jokechest.com, we're more than your ordinary humour web site. At this website you will find the most funniest jokes from different professions, the ever so popular classical jokes, and we even added a section so you can browse jokes submitted by web visitors just like you. Start browsing the categories right now by select clicking on the categories listed to the left or click random joke to get an instant laugh. We're so funny, hookah smoke will come out your nose. You'll have so much that people will think you're funny. New Joke Additions for this month of October! No jokes have been submitted today Subscribe to Bucknuts or compare prices on Bucknuts magazine. Privacy Notice Contact Us Jokechest.com

124. Relativity Or Ether Theory With A New Propagation Of Light? A new analysis of the Michelson Experiment. http://www.norbertfeist.de/english.htm

Ether Theory or Relativity Theory? This website was created in June 2001. It has dealt from ellipsoidal wave propagation in an luminiferous ether. The hypothesis in agreement with H. Varcollier and L. Gooris was: The one way speed of light is dependent on the system speed v and on the emission angle in relation to the direction of motion The two way speed of light is the harmonious average value from equ. (1) for toward and away. At constant system speed v it has the equal amount for any emission angle and explains as far as the figures go the " zero result " of the Michelson - Morley experiment, comparable the assumption of a Lorentz contraction. Conclusions after 5 years internet presence: There was not an indication to the existence of ellipsoidal wave fronts (with the exception of Fresnel’s Ellipsoid in anisotropic materials), and there was not a professional repetition of my ultrasonic experiment. That’s still my conviction: There is a luminiferous ether and an exact identical Michelson-Morley experiment with sound in air must have the same result.

125. Space Time Travel – Relativity Visualized Online papers, images, movies and paper models. http://www.spacetimetravel.org/

Relativity visualized Space Time Travel Next Prev Home site map contact Deutsch English Overview News FAQ Visualization of the theory of relativity. Online papers, images, movies and paper models by the physics education group of Ute Kraus This is an English version of the German site www.tempolimit-lichtgeschwindigkeit.de Relativity visualized The theory of relativity holds a certain fascination for many people. At the same time it is often regarded as very abstract and difficult to understand. Part of the difficulties in understanding relativity are due to the fact that relativistic effects contradict everyday experience. Motion, for example, is a familiar process and everybody "knows from experience" that it entails neither time dilation nor length contraction. A flight with half the speed of light could correct this misjudgement but is not on offer. A possible alternative are simulations. Images, films and virtual reality let us in a sense experience relativistic flights, gravitational collapse, compact objects and other extreme conditions. News More news in the news archive Overview What do you find on this site? Visualizations and model experiments. This site is about a visual and intuitive approach to the theory of relativity.

126. 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 1.52 Last Updated August 28, 2006 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

127. Hyperspace@aei Hyperspace@aei aims to increase the exchange of information and foster the interaction among scientists working in general relativity and gravitation. http://hyperspace.aei.mpg.de/

@import url( http://hyperspace.aei.mpg.de/wp-content/themes/hyperspace/style.css ); hyperspace@aei New home of the "GRG List" formerly maintained by M. MacCallum Editor: L. Rezzolla Home Login RSS Welcome to hyperspace@aei Hyperspace@aei  aims to increase the exchange of information and foster the interaction among scientists working in general relativity and gravitation . It replaces the QMUL hyperspace service, which has been maintained for 20 years by  Malcolm MacCallum . The new site is edited by Luciano Rezzolla with support from the Max Planck Digital Library , and it is hosted at the Albert Einstein Institute in Germany. This site is also sponsored by the International Society on General Relativity and Gravitation ( ISGRG Hyperspace@aei provides the opportunity to post announcements about conferences job opportunities , and general news . All of this information can be easily accessed on the site (follow the links on the left sidebar) and is collected in the form of a bulletin which is sent to the hyperspace mailing list calendars and RSS feeds which can be browsed on the site but also imported for private use.

128. Public Relations - Podyplomowe Studium Public Relations Kszta ci specjalist w w zakresie public relations. http://www.studium-pr.pl

INFORMACJE OGÓLNE EDYCJA XV 2010/2011 Program zajęć Regulamin ... KLUB ABSOLWENTÓW INFORMACJE OGÓLNE Podyplomowe Studium Public Relations, powstało w roku 1996, jako wspólne przedsięwzięcie Instytutu Filozofii i Socjologii Polskiej Akademii Nauk, Instytutu Stosowanych Nauk Społecznych Uniwersytetu Warszawskiego, przy współudziale Fundacji "Centrum Prywatyzacji" (obecnie Instytut Rozwoju Biznesu). Studium jest instytucjonalnym członkiem EUPRERA (European Public Relations Research and Education Association). Organizacji, której celem jest promowanie badań, stymulowanie rozwoju wiedzy oraz określanie standardów edukacji w zakresie teorii i praktyki public relations w Europie. Studium jest obecnie największą w Polsce instytucją kształcącą specjalistów w zakresie public relations. Corocznie dyplom absolwenta uzyskuje około 100 osób. Nasi absolwenci znajdują zatrudnienie w wielu renomowanych agencjach PR oraz w działach PR dużych firm korporacyjnych. W roku 2003, zespół słuchaczy Studium (Maciej Jerz, Kasper Bosek, Wioletta Jarzyna oraz Aleksandra Kempys) pod kierunkiem Geralda Abramczyka zdobył główną nagrodę w międzynarodowym konkursie na najlepszą kampanię PR, Euprera Communication Award. W roku 2006, w konkursie "Praktykuj za granicą", organizowanym przez Instytut Monitorowania Mediów, Polskie Stowarzyszenie Public Relations oraz EUPRERA, III miejsce zajęła słuchaczka Studium Anna Kadzikiewicz.

129. Sparrow.pl Us ugi w zakresie public relations, celebrities manager, doradztwa strategicznego. http://www.sparrow.pl

130. General Relativity And Quantum Cosmology General Relativity and Quantum Cosmology (since Jul 1992). For a specific paper, enter the identifier into the top right search box. Browse http://arxiv.org/archive/gr-qc

arXiv.org gr-qc Search or Article-id Help Advanced search All papers Titles Authors Abstracts Full text Help pages General Relativity and Quantum Cosmology (since Jul 1992) For a specific paper , enter the identifier into the top right search box. Browse: new (most recent mailing, with abstracts) recent (last 5 mailings) current month's gr-qc listings specific year/month: all months Catch-up: Changes since: 01 (Jan) 02 (Feb) 03 (Mar) 04 (Apr) 05 (May) 06 (Jun) 07 (Jul) 08 (Aug) 09 (Sep) 10 (Oct) 11 (Nov) 12 (Dec) , view results without with abstracts Search within the gr-qc archive Submission statistics: Links to: arXiv form interface find gr-qc ... Access key information)

131. Open Database Project A pure relational database model and implementation including object classes as data types orthogonal to relations. http://computing.unn.ac.uk/openDBproject/

Home Page RAQUEL the Language DBMS Architecture DBMS Modules ... Home This website has now been replaced by the Raquel Database System website Nevertheless you are welcome to look at this website. The Open Database Project succeeded in its aim of producing a "Proof of Concept" prototype Raquel Database System for public distribution, thanks to funding from "NStar". An Open Source project has now begun to evolve the prototype into a commercial product, and its website is here The home page of the original version of this website consisted of the following Mission Statement :- Welcome to the web site of the Open Database Project... The mission statement of the Open Database Project is as follows: To develop: A philosophy for a pure relational database model including object classes as data types orthogonal to relations An open architecture satisfying the philosophy A design for the architecture An implementation of the design To exploit the developments above through activities such as: Providing comprehensive view updating Providing sequences and bags as specialised types of relation Providing a visual interface for the architecture To make the code available as open source software To publish documents through the Internet and other means (Ratified by the project group in October 2002)

132. WMAP Big Bang Theory Apr 16, 2010 A key concept of General Relativity is that gravity is no longer described by a After the introduction of General Relativity a number of http://map.gsfc.nasa.gov/universe/bb_theory.html

Wilkinson Microwave Anisotropy Probe Search Site Map HOME NEWS UNIVERSE ... SITE INFO WMAP's Universe Big Bang Theory Cosmology Theory Concepts ... Related Topics Big Bang Cosmology The Big Bang Model is a broadly accepted theory for the origin and evolution of our universe. It postulates that 12 to 14 billion years ago, the portion of the universe we can see today was only a few millimeters across. It has since expanded from this hot dense state into the vast and much cooler cosmos we currently inhabit. We can see remnants of this hot dense matter as the now very cold cosmic microwave background radiation which still pervades the universe and is visible to microwave detectors as a uniform glow across the entire sky. Foundations of the Big Bang Model The Big Bang Model rests on two theoretical pillars: General Relativity The first key idea dates to 1916 when Einstein developed his General Theory of Relativity which he proposed as a new theory of gravity. His theory generalizes Isaac Newton's original theory of gravity, c. 1680, in that it is supposed to be valid for bodies in motion as well as bodies at rest. Newton's gravity is only valid for bodies at rest or moving very slowly compared to the speed of light (usually not too restrictive an assumption!). A key concept of General Relativity is that gravity is no longer described by a gravitational "field" but rather it is supposed to be a distortion of space and time itself. Physicist John Wheeler put it well when he said "Matter tells space how to curve, and space tells matter how to move." Originally, the theory was able to account for peculiarities in the orbit of Mercury and the bending of light by the Sun, both unexplained in Isaac Newton's theory of gravity. In recent years, the theory has passed a series of rigorous tests.

133. Tcl Relational Algebra Library A C-based extension of the TCL language implementing relational algebra. http://tclral.sourceforge.net/

Tcl Relational Algebra Library What is TclRal? TclRAL is a "C" based extention of the TCL language that is an implementation of the Relational Algebra. From a programmers point of view, the library is a Tcl package that introduces two new native data types and a set of commands that operate on them. The new data types are: Tuple Relation The library also contains three primary commands each of which is an ensemble of sub commands that are the operations available on the Tuple and Relation type. Other commands are provided to pretty print relation values and load/store sets of relation variables. tuple - operations on the tuple data type relvar - operations on variables that contain relations relation - operations on the relation data type relformat - generate a human readable tabular layout of a relation serialize - operations to load/store relation variable data What is Relational Algebra? Relational algebra is the application of formal mathematical concepts to managing data. It is most often discussed in terms of the Relational Model of Data and in that context it is often associated with Database Management Systems (DBMS). However, relations are logical entities and do not depend upon any particular DBMS for an implementation. TclRal is patterned after the relational algebra described by Date (Date, C.J., An Introduction to Database Systems , 8th ed, Pearson Education, 2004, ISBN 0-321-19784-4, chap. 7).

134. Curious About Astronomy? The Theory Of Relativity Mar 21, 2008 General Relativity Tutorial A tutorial on the theory of General General Relativity Why doesn t gravity change the speed of light? http://curious.astro.cornell.edu/relativity.php

Main Page About Us For Teachers Astronomy Links ... Ask A Question! SEARCH: QUESTION AND ANSWER ARCHIVE: Most Recent Most Popular Random Question OUR SOLAR SYSTEM The Earth The Moon The Sun Planets ... Comets, Meteors And Asteroids THE UNIVERSE Extrasolar Planets Stars Supernovae Black Holes ... Cosmology And The Big Bang OBSERVATIONAL ASTRONOMY Stargazing Telescopes Timekeeping Lunar And Solar Eclipses MISCELLANEOUS Careers In Astronomy The History Of Astronomy General Physics ... The Arts Credit: Andrew Fruchter STScI ) et al., HST NASA (via Astronomy Picture of the Day Gravitational Lensing. This Hubble Space Telescope image of the galaxy cluster Abell 2218 is a powerful demonstration of gravity's ability to bend light, a phenomenon predicted by Einstein's theory of relativity. The bright, massive galaxies in the cluster act like optical lenses, bending light from more distant galaxies into the faint arcs and rings visible in this picture. The Theory of Relativity Links Questions In the early decades of the 20th century, a young Swiss patent clerk named Albert Einstein published the theory of relativity and changed the face of physics and astronomy forever.

135. A Relational Model Of Data For Large Shared Data Banks The paper that started it all. The first public statement of the Relational Model. http://portal.acm.org/citation.cfm?id=358007

136. Einstein Was Right: General Relativity Confirmed - FoxNews.com Mar 10, 2010 Score one more for Einstein. A new study has confirmed his theory of general relativity works on extremely large scales. http://www.foxnews.com/scitech/2010/03/10/einstein-was-right-relativity-confirme

Fox Sites Fox News Fox Business Fox News Radio Fox News Latino ... Login Search Site Wednesday, April 7, 2010 as of 11:14 AM ET On Air Now Anchors and Reporters Home Video ... Special Report Bret Baier et Weekdays Fox Report Shepard Smith et Weekdays The O'Reilly Factor Bill O'Reilly et Weekdays Hannity Sean Hannity et Weekdays On The Record Greta Van Susteren et Weekdays America Live Megyn Kelly et Weekdays America's News HQ Shannon Bream, Kelly Wright, Jamie Colby et Weekends America's Newsroom Bill Hemmer Marth MacCallum et Weekdays The Cost of Freedom Brenda Buttner Neil Cavuto David Asman et Saturday Gretchen Carlson Steve Doocy Brian Kilmeade et Weekdays Fox News Sunday Chris Wallace et Sunday Fox News Watch Jon Scott et Saturday Geraldo at Large Geraldo Rivera et Weekends Glenn Beck Glenn Beck et Weekdays Happening Now Jon Scott Jenna Lee et Weekdays Huckabee Mike Huckabee et Saturday The Journal Editorial Report Paul Gigot et Saturday Red Eye w/ Gutfeld Greg Gutfeld et Weekdays Studio B Shepard Smith et Weekdays War Stories Oliver North et Saturday Your World Cavuto Neil Cavuto et Weekdays Scitech Home November 18, 2009

137. The New Cherrydale Manufacturers candy for school fundraising and related organizations. Includes product information, promotions, services and related links. http://www.cherrydale.com

Cherrydale Fundraising Create or sign into your shopping account My Account Site Map Need Help? Shopping Cart Shopping cart contains: 0 items About Cherrydale Fundraising Services View Our Catalogs ... SITE MAP

138. MIT OpenCourseWare | Physics | 8.224 Exploring Black Holes: General Relativity & Study of physical effects in the vicinity of a black hole as a basis for understanding general relativity, astrophysics, and elements of cosmology. http://ocw.mit.edu/courses/physics/8-224-exploring-black-holes-general-relativit

skip to content Home Courses Donate ... Donate var addthis_pub = "katej"; Home Courses Physics As taught in: Spring 2003 In this image taken by the orbiting Chandra X-ray Observatory, the bright dot near the center was seen to flicker and brighten dramatically for a few minutes. Many astronomers believe this provides additional evidence that a black hole does indeed reside at our Galaxy's center. (Image courtesy of F. Baganoff, MIT as presented on NASA 's Astronomy Picture of the Day web site.) Level: Undergraduate Instructors: Prof. Edmund Bertschinger Prof. Edwin F. Taylor Course Features Course Description Technical Requirements Course Features Selected video lectures Selected lecture notes Exams (no solutions) Course Description Study of physical effects in the vicinity of a black hole as a basis for understanding general relativity, astrophysics, and elements of cosmology. Extension to current developments in theory and observation. Energy and momentum in flat spacetime; the metric; curvature of spacetime near rotating and nonrotating centers of attraction; trajectories and orbits of particles and light; elementary models of the Cosmos. Weekly meetings include an evening seminar and recitation. The last third of the semester is reserved for collaborative research projects on topics such as the Global Positioning System, solar system tests of relativity, descending into a black hole, gravitational lensing, gravitational waves, Gravity Probe B, and more advanced models of the Cosmos. Technical Requirements

139. Hawaiian Vintage Chocolate Producers of chocolate and related products. Includes information on growing chocolate in Hawaii, recipes, news, and related resources. http://www.hwvi.com/

140. Recreating The Big Bang Inside Metamaterials - Technology Review Aug 20, 2009 The analogy between the physics of superfluid helium and general relativity is well known. The mathematics that describe these systems are http://www.technologyreview.com/blog/arxiv/24013/

Published by MIT Username Password Register Forgot Password? Account Events ... in India Search Blogs Home Computing Web Communications ... Newsletters Recreating the Big Bang Inside Metamaterials kfc 08/20/2009 2 Comments A formal mathematical analogy between the way metamaterials and spacetime effect light could allow scientists to recreate Big Bang-type events in the lab. The analogy between the physics of superfluid helium and general relativity is well known. The mathematics that describe these systems are essentially identical so measuring the properties of one automatically tells you how the other behaves. Now Igor Smolyaninov at the University of Maryland has found another interesting mathematical analogy between optical metamaterials and general relativity. Metamaterials are substances in which the permittivity and permeability have been manipulated in a way that allows fine control over the behaviour of light. They have famously been used to create invisibility cloaks that hide objects from view. But Smolyaninov has another idea. Why not create materials that reproduce the behaviour of light in various kinds of spacetimes. He gives the example of a metamaterial which is a formal equivalent to a (2+2) spacetime with two dimensions of space and two of time.

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