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Principle of relativity

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392: 31: 2116: 405: 838:, treating a spot on the Earth as a fixed point, the stars are observed to move in the sky, circling once about the Earth per day. Since the stars are light years away, this observation means that, in the non-inertial reference frame of the Earth, anybody who looks at the stars is seeing objects which appear, to them, to be moving faster than the speed of light. 745:
of the theory and derived the Lorentz transformations from this principle combined with the principle of the independence of the speed of light (in vacuum) from the motion of the source. These two principles were reconciled with each other by a re-examination of the fundamental meanings of space and
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The principle of relativity, according to which the laws of physical phenomena should be the same, whether for an observer fixed, or for an observer carried along in a uniform movement of translation; so that we have not and could not have any means of discerning whether or not we are carried along
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The principle requires physical laws to be the same for any body moving at constant velocity as they are for a body at rest. A consequence is that an observer in an inertial reference frame cannot determine an absolute speed or direction of travel in space, and may only speak of speed or direction
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It is possible to derive the form of the Lorentz transformations from the principle of relativity alone. Using only the isotropy of space and the symmetry implied by the principle of special relativity, one can show that the space-time transformations between inertial frames are either Galilean or
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should be the same at all times; and scientific investigations generally assume that laws of nature are the same regardless of the person measuring them. These sorts of principles have been incorporated into scientific inquiry at the most fundamental of levels.
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The problems involved are not always so trivial. Special relativity predicts that an observer in an inertial reference frame does not see objects he would describe as moving faster than the speed of light. However, in the non-inertial reference frame of
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Lorentzian. Whether the transformation is actually Galilean or Lorentzian must be determined with physical experiments. It is not possible to conclude that the speed of light
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is invariant by mathematical logic alone. In the Lorentzian case, one can then obtain relativistic interval conservation and the constancy of the speed of light.
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The mathematics of special relativity presented in as simple and comprehensive manner possible within philosophical and historical contexts.
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Certain principles of relativity have been widely assumed in most scientific disciplines. One of the most widespread is the belief that any
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Newtonian mechanics added to the special principle several other concepts, including laws of motion, gravitation, and an assertion of an
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in natural law: that is, the laws must look the same to one observer as they do to another. According to a theoretical result called
1552: 1228:– An open access, peer-referred, solely online physics journal publishing invited reviews covering all areas of relativity research. 1185: 1076: 1872: 902:. Einstein based this new theory on the general principle of relativity, and he named the theory after the underlying principle. 70: 1585: 1688: 823: 1766: 1829: 2138: 2119: 1861: 1696: 669:. When formulated in the context of these laws, the special principle of relativity states that the laws of mechanics are 516: 247: 570:: If a system of coordinates K is chosen so that, in relation to it, physical laws hold good in their simplest form, the 1683: 623: 1443: 127: 1724: 1458: 600: 558: 477: 409: 137: 75: 152: 2011: 1453: 1406: 1028: 538: 132: 122: 2041: 1667: 1348: 841:
Since non-inertial reference frames do not abide by the special principle of relativity, such situations are not
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General relativity was developed by Einstein in the years 1907 - 1915. General relativity postulates that the
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laws hold good in relation to any other system of coordinates K' moving in uniform translation relatively to K.
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The Principle of Relativity: A Collection of Original Memoirs on the Special and General Theory of Relativity
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affects the path of free particles (and even the path of light). General relativity uses the mathematics of
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All systems of reference are equivalent with respect to the formulation of the fundamental laws of physics.
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the relativity principle holds perfectly. Einstein elevated the (special) principle of relativity to a
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alongside. For example, if two observers at different times see the same laws, then a quantity called
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because those frames do not, in general experience, seem to abide by the same laws of physics. In
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The strength of special relativity lies in its use of simple, basic principles, including the
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Physics principle stating that the laws of physics must be the same in all reference frames
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reference frames—inertial or non-inertial. An accelerated charged particle might emit
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The Noether Theorems: Invariance and Conservation Laws in the Twentieth Century
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was incompatible with the relativity principle, in the way it was defined by
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Several principles of relativity have been successfully applied throughout
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Physics in non-inertial reference frames was historically treated by a
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The special principle of relativity was first explicitly enunciated by
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According to the first postulate of the special theory of relativity:
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visualizing the effects of special relativity on fast moving objects.
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are used to describe acceleration in non-inertial reference frames.
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Congress of arts and science, universal exposition, St. Louis, 1904
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Einstein, A., Lorentz, H. A., Minkowski, H., and Weyl, H. (1952) .
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Lorentz covariance in the presence of matter. The presence of
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and the invariance of the speed of light in vacuum. (See also:
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Relativity Calculator – Learn Special Relativity Mathematics
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Classical Mechanics: Hamiltonian and Lagrangian Formalism
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are added into consideration; an example is a uniformly
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Einstein's Pathway to the Special Theory of Relativity
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states that physical laws should be the same in every
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List of important publications in physics: Relativity
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have the same form in arbitrary frames of reference.
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is the requirement that the equations describing the
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Cambridge Scholars Publishing. p. 272. 1288: 430: 8: 1091:: CS1 maint: multiple names: authors list ( 1537: 1318: 1295: 1281: 1273: 1158:Physical Applications of Homogeneous Balls 437: 423: 18: 1234:– A complete online course on Relativity. 529:Any principle of relativity prescribes a 753:of the laws of physics under a shift of 1257:from the University of New South Wales. 1255:Relativity in film clips and animations 989: 799:That is, physical laws are the same in 21: 1084: 615:named the theory after the principle. 537:, any such symmetry will also imply a 1232:MathPages – Reflections on Relativity 1164:BirkhĂ€user, Boston, 2004, pages 1-21. 923:Cosmic microwave background radiation 461:have the same form in all admissible 7: 1867:Tolman–Oppenheimer–Volkoff equation 1820:Friedmann–LemaĂźtre–Robertson–Walker 1160:, Progress in Mathematical Physics 942:Introduction to general relativity 14: 1637:Hamilton–Jacobi–Einstein equation 622:The principle does not extend to 468:For example, in the framework of 2115: 2114: 1251:– A short course offered at MIT. 1249:Relativity Gravity and Cosmology 1243:A Relativity Tutorial at Caltech 866:of special relativity becomes a 404: 403: 390: 29: 779:general principle of relativity 773:General principle of relativity 619:relative to some other object. 597:special principle of relativity 568:Special principle of relativity 553:Special principle of relativity 1444:Mass–energy equivalence (E=mc) 1: 1221:Wikibooks: Special Relativity 1209:general relativity references 1205:special relativity references 1136:PoincarĂ©, Henri (1904–1906). 624:non-inertial reference frames 517:History of special relativity 1238:Special Relativity Simulator 1226:Living Reviews in Relativity 491:, whether implicitly (as in 478:inertial frames of reference 1459:Relativistic Doppler effect 1029:Kosmann-Schwarzbach, Yvette 997:Deriglazov, Alexei (2010). 601:inertial frame of reference 590:inertial frame of reference 559:Inertial frame of reference 138:Relativistic Doppler effect 76:Inertial frame of reference 2160: 1930:In computational physics: 1454:Relativity of simultaneity 852: 684: 641: 588:This postulate defines an 556: 510: 499:'s special relativity and 476:have the same form in all 133:Relativity of simultaneity 2112: 1767:Lense–Thirring precession 1349:Doubly special relativity 1106:Weistein, Galina (2015). 1037:. Springer. p. 174. 1027:Schwarzbach, Bertram E.; 1003:. Springer. p. 111. 812:coordinate transformation 755:inertial reference frames 1627:Post-Newtonian formalism 1617:Einstein field equations 1553:Mathematical formulation 1377:Hyperbolic orthogonality 1177:The Theory of Relativity 820:rotating reference frame 792:The Theory of Relativity 737:explained that with the 729:In their 1905 papers on 702:, used in the theory of 658:, using the metaphor of 482:Einstein field equations 153:Bell's spaceship paradox 1338:Galilean transformation 1329:Principle of relativity 972:Principle of uniformity 967:Principle of covariance 913:Background independence 739:Lorentz transformations 675:Galilean transformation 495:) or explicitly (as in 455:principle of relativity 267:Galilean transformation 128:Mass–energy equivalence 41:Principle of relativity 1423:Lorentz transformation 797: 727: 638:In Newtonian mechanics 586: 91:Lorentz transformation 1891:Weyl−Lewis−Papapetrou 1632:Raychaudhuri equation 1571:Equivalence principle 928:Equivalence principle 890:in order to describe 884:differential geometry 805:synchrotron radiation 733:, Henri PoincarĂ© and 681:In special relativity 71:Einstein's postulates 2139:Theory of relativity 1932:Numerical relativity 1773:pulsar timing arrays 984:Notes and references 894:as an effect of the 830:into consideration. 724:Henri PoincarĂ©, 1904 46:Theory of relativity 1824:Friedmann equations 1718:Hulse–Taylor binary 1680:Gravitational waves 1576:Riemannian geometry 1402:Proper acceleration 1387:Maxwell's equations 1333:Galilean relativity 1125:Extract of page 272 1050:Extract of page 174 1016:Extract of page 111 933:Galilean relativity 918:Conjugate diameters 708:luminiferous aether 700:Maxwell's equations 644:Galilean invariance 605:Newtonian mechanics 513:Galilean invariance 493:Newtonian mechanics 463:frames of reference 262:Galilean relativity 182:Minkowski spacetime 86:Maxwell's equations 1873:Reissner–Nordström 1791:Brans–Dicke theory 1622:Linearized gravity 1449:Length contraction 1367:Frame of reference 1344:Special relativity 1174:C. MĂžller (1952). 977:Special relativity 938:General relativity 864:Lorentz covariance 855:General relativity 849:General relativity 843:self-contradictory 759:Lorentz covariance 687:Special relativity 609:special relativity 607:and the theory of 501:general relativity 470:special relativity 397:Physics portal 118:Length contraction 23:Special relativity 2126: 2125: 1940: 1939: 1919:OzsvĂĄth–SchĂŒcking 1525: 1524: 1507:Minkowski diagram 1464:Thomas precession 1407:Relativistic mass 1156:Yaakov Friedman, 1119:978-1-4438-7889-0 1063:Arnold Sommerfeld 1044:978-0-387-87868-3 1010:978-3-642-14037-2 824:centrifugal force 816:fictitious forces 719:in such a motion. 632:fictitious forces 628:classical physics 579:Albert Einstein: 535:Noether's theorem 474:Maxwell equations 447: 446: 187:Spacetime diagram 158:Ehrenfest paradox 148:Relativistic disk 143:Thomas precession 123:Relativistic mass 2151: 2118: 2117: 1901:van Stockum dust 1673:Two-body problem 1591:Mach's principle 1538: 1479:Terrell 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MĂžller 751:invariance 613:Max Planck 557:See also: 315:FitzGerald 300:Sommerfeld 252:Precursors 197:Light cone 192:World line 2007:Robertson 1992:Friedmann 1987:Eddington 1977:de Sitter 1811:Solutions 1689:detectors 1684:astronomy 1651:Phenomena 1586:Geodesics 1489:Spacetime 1432:Phenomena 1087:cite book 947:Invariant 900:spacetime 880:curvature 876:spacetime 874:"curves" 743:postulate 671:invariant 547:conserved 365:Ehrenfest 335:Minkowski 305:Michelson 173:Spacetime 2144:Theories 2120:Category 1997:LemaĂźtre 1962:Einstein 1952:PoincarĂ© 1912:Others: 1896:Taub–NUT 1862:interior 1784:theories 1782:Advanced 1749:redshift 1564:concepts 1382:Rapidity 1360:concepts 1207:and the 1203:See the 1031:(2010). 906:See also 896:geometry 794:, p. 220 788:—  722:—  673:under a 577:—  545:will be 531:symmetry 410:Category 360:von Laue 330:PoincarĂ© 320:Herglotz 295:Einstein 212:Dynamics 2062:Hawking 2057:Penrose 2042:Novikov 2022:Wheeler 1967:Hilbert 1957:Lorentz 1914:pp-wave 1735:lensing 1531:General 1312:Special 1065:(ed.). 888:tensors 781:states: 489:science 451:physics 345:Abraham 325:Lorentz 248:History 2103:others 2092:Thorne 2082:Misner 2067:Taylor 2052:Geroch 2047:Ehlers 2017:Zwicky 1835:Kasner 1184:  1116:  1075:  1041:  1007:  872:matter 861:global 543:energy 472:, the 453:, the 408:  370:Tolman 355:Planck 340:Fizeau 310:Morley 286:People 2097:Weiss 2077:Bondi 2072:Hulse 2002:Milne 1906:discs 1850:Milne 1845:Gödel 1702:Virgo 868:local 836:Earth 375:Dirac 2032:Kerr 1982:Weyl 1881:Kerr 1741:and 1695:and 1693:LIGO 1182:ISBN 1114:ISBN 1093:link 1073:ISBN 1039:ISBN 1005:ISBN 886:and 826:and 777:The 694:and 595:The 572:same 515:and 350:Born 2087:Yau 1712:GEO 898:of 801:all 761:.) 503:). 449:In 2135:: 1761:/ 1727:: 1682:: 1211:. 1162:40 1142:. 1089:}} 1085:{{ 845:. 714:: 677:. 662:. 630:, 592:. 465:. 1887:) 1883:( 1869:) 1860:( 1826:) 1822:( 1769:) 1765:( 1745:) 1714:) 1691:( 1340:) 1331:( 1296:e 1289:t 1282:v 1190:. 1122:. 1095:) 1081:. 1047:. 1013:. 767:c 438:e 431:t 424:v

Index

Special relativity
The world line: a diagrammatic representation of spacetime
Principle of relativity
Theory of relativity
Formulations
Einstein's postulates
Inertial frame of reference
Speed of light
Maxwell's equations
Lorentz transformation
Time dilation
Length contraction
Relativistic mass
Mass–energy equivalence
Relativity of simultaneity
Relativistic Doppler effect
Thomas precession
Relativistic disk
Bell's spaceship paradox
Ehrenfest paradox
Spacetime
Minkowski spacetime
Spacetime diagram
World line
Light cone
Dynamics
Proper time
Proper mass
Four-momentum
History

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