{"title":"Relativity","description":"\u003cp\u003eRelativity examines the fundamental principles underlying Einstein’s theories of Special and General Relativity, which revolutionized our understanding of time, space, and gravity. This subject guides readers through how motion, gravity, and the speed of light interconnect, influencing everything from high-energy astrophysics to the nature of black holes. Relativity’s mathematical and conceptual frameworks distinguish it from broader physics topics by focusing specifically on how observers experience phenomena differently depending on their motion and gravitational environment.\u003c\/p\u003e\u003cp\u003eFor a targeted approach, use relativity to investigate core concepts like spacetime curvature, mass-energy equivalence, or experimental demonstrations of time dilation. If your interest spans wider scientific contexts, comparing relativity with categories like quantum mechanics or classical physics can provide a clearer sense of its unique role within the foundations of modern science.\u003c\/p\u003e","products":[{"product_id":"new-euclidon-method-generating-stationary-vacuum-einstein-9789819813919-new","title":"New Euclidon Method of Generating Stationary Vacuum Einstein","description":"\u003cp\u003eThe purpose of this book is to systematically derive, as much as possible, the main exact asymptotically flat solutions of the static and stationary axially symmetric vacuum Einstein-Maxwell equations. The primary \"building block\" used is the Euclidon solution, which has a clear physical interpretation as a relativistic accelerated non-inertial reference frame in the flat space-time.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eIn the first part, static Einstein fields are considered. The one-static Euclidon solution and its generalizations are obtained by various methods.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe second part deals with the main classes of stationary vacuum Einstein field solutions. The one-stationary soliton solution, the one-stationary Euclidon solution, and its physical interpretation are obtained.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eIn the third part, using the method of variation of parameters, solutions are obtained including a two-Euclidon stationary solution, which coincides with the Kerr-NUT solution.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe fourth part deals with the main classes of static Einstein-Maxwell fields. The methods of superposition of the one-stationary Euclidon solution, the one-stationary soliton solution, and the two-Euclidon stationary solution with arbitrary external static electrovacuum fields are also applied to this case.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe fifth part deals with stationary Einstein-Maxwell fields. The generalized solutions are constructed using symmetry transformations from the previously found solutions.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543604658466,"sku":"9789819813919-new","price":82.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789819813919.jpg?v=1776386107"},{"product_id":"understanding-time-space-9789819813100-new","title":"Understanding Time and Space","description":"\u003cp\u003eUnderstanding Time and Space is an invitation to the theory of relativity for anyone who is now or has ever been an inquisitive high school student.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eRelativity can seem violently counterintuitive. It says that different observers can describe the world in very different ways and they can all be correct. It helps to be reminded that you've known this since childhood, when you learned that the direction you call left might be the same as the direction I call right, and we can both be correct. This book illuminates and demystifies the theory of relativity through repeated analogies to that kind of everyday experience. Dozens of drawings, analogous to the maps we all use to navigate through ordinary space, emphasize that relativity is a branch of geometry - the geometry of navigating through that more mysterious venue called spacetime.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe reader is assisted by exercises sprinkled throughout, and by \"dangerous curve\" sections that identify and combat the most common misunderstandings.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eSteven Landsburg is a professor at the University of Rochester. He has published widely in mathematics, economics, physics and philosophy. His hobby is answering questions about \u003c\/p\u003e\u003cp\u003erelativity on the internet, which has taught him a lot about how to be helpful.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543604887842,"sku":"9789819813100-new","price":40.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789819813100.jpg?v=1776386164"},{"product_id":"understanding-time-space-9789819808397-new","title":"Understanding Time and Space","description":"\u003cp\u003eUnderstanding Time and Space is an invitation to the theory of relativity for anyone who is now or has ever been an inquisitive high school student.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eRelativity can seem violently counterintuitive. It says that different observers can describe the world in very different ways and they can all be correct. It helps to be reminded that you've known this since childhood, when you learned that the direction you call left might be the same as the direction I call right, and we can both be correct. This book illuminates and demystifies the theory of relativity through repeated analogies to that kind of everyday experience. Dozens of drawings, analogous to the maps we all use to navigate through ordinary space, emphasize that relativity is a branch of geometry - the geometry of navigating through that more mysterious venue called spacetime.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe reader is assisted by exercises sprinkled throughout, and by \"dangerous curve\" sections that identify and combat the most common misunderstandings.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eSteven Landsburg is a professor at the University of Rochester. He has published widely in mathematics, economics, physics and philosophy. 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They proposed that life might have originated elsewhere in the universe and spread to Earth through a process called panspermia.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eHoyle and Wickramasinghe's research, supported by advancements in space technology and astronomy, argued that the origins of life required a cosmological scale beyond the solar system or galaxy. Their work contributed to the emergence of astrobiology, merging astronomy and biology, and indicated a shift from Earth-centered theories of life.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eTheir challenge parallels the Copernican revolution, which displaced Earth from the center of the universe. Similarly, Hoyle and Wickramasinghe's ideas suggest a new paradigm shift in science, moving towards a view of life as a cosmic phenomenon. 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This economic scenario, combined with China's millennial tradition of seeking to expand the frontiers of knowledge, led to the planning and construction of several large radio telescopes and the launch of a series of deep space exploration satellites. As a concrete result of this broad effort, today China is gradually advancing to the forefront of scientific research and technological innovation in the field of Pulsar Astronomy. The main highlight of this book is to present the Five-hundred-meter Aperture Spherical Telescope (FAST) and its new discoveries and scientific results. To date, FAST has discovered more than 800 new pulsars through its galactic plane survey and drift sweep. The high-precision millisecond pulsars found by FAST can be used to detect extremely lowfrequency gravitational waves, establish pulsar timing patterns, and search for unknown objects in the solar system. For the vast majority of readers, this book undoubtedly represents a rich source of documentation, information and learning about pulsars and their impact on modern astrophysics and particularly about China's contribution to new achievements in this area.\u003c\/p\u003e","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543611179298,"sku":"9789819800636-new","price":175.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789819800636.jpg?v=1776386407"},{"product_id":"extend-lagrange-hamilton-formal-point-mech-covari-9789814578417-new","title":"Extend Lagrange \u0026 Hamilton Formal for Point Mech \u0026 Covari ..","description":"\u003cp\u003eThis book presents the extended Lagrange and Hamilton formalisms of point mechanics and field theory in the usual tensor language of standard textbooks on classical dynamics. The notion \"extended\" signifies that the physical time of point dynamics as well as the space-time in field theories are treated as dynamical variables. It thus elaborates on some important questions including: How do we convert the canonical formalisms of Lagrange and Hamilton that are built upon Newton's concept of an absolute time into the appropriate form of the post-Einstein era? How do we devise a Hamiltonian field theory with space-time as a dynamical variable in order to also cover General Relativity?\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eIn this book, the authors demonstrate how the canonical transformation formalism enables us to systematically devise gauge theories. With the extended canonical transformation formalism that allows to map the space-time geometry, it is possible to formulate a generalized theory of gauge transformations. For a system that is form-invariant under both a local gauge transformation of the fields and under local variations of the space-time geometry, we will find a formulation of General Relativity to emerge naturally from basic principles rather than being postulated.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543665049890,"sku":"9789814578417-new","price":144.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789814578417.jpg?v=1776388598"},{"product_id":"einstein-relatively-simple-9789814525596-new","title":"Einstein Relatively Simple: Our Universe Revealed in Everyday Language","description":"'Outstanding Academic Title for 2014' by CHOICEEinstein Relatively Simple brings together for the first time an exceptionally clear explanation of both special and general relativity. It is for people who always wanted to understand Einstein's ideas but never thought they could.Told with humor, enthusiasm, and rare clarity, this entertaining book reveals how a former high school drop-out revolutionized our understanding of space and time. From E=mc2 and everyday time travel to black holes and the big bang, Einstein Relatively Simple takes us all, regardless of our scientific backgrounds, on a mind-boggling journey through the depths of Einstein's universe. Along the way, we track Einstein through the perils and triumphs of his life -- follow his thinking, his logic, and his insights -- and chronicle the audacity, imagination, and sheer genius of the man recognized as the greatest scientist of the modern era.In Part I on special relativity we learn how time slows and space shrinks with motion, and how mass and energy are equivalent. Part II on general relativity reveals a cosmos where black holes trap light and stop time, where wormholes form gravitational time machines, where space itself is continually expanding, and where some 13.7 billion years ago our universe was born in the ultimate cosmic event -- the Big Bang.","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543670096162,"sku":"9789814525596-new","price":31.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789814525596.jpg?v=1776388844"},{"product_id":"new-perspective-relativity-9789814340489-new","title":"A New Perspective on Relativity","description":"Starting off from noneuclidean geometries, apart from the method of Einstein's equations, this book derives and describes the phenomena of gravitation and diffraction. A historical account is presented, exposing the missing link in Einstein's construction of the theory of general relativity: the uniformly rotating disc, together with his failure to realize, that the Beltrami metric of hyperbolic geometry with constant curvature describes exactly the uniform acceleration observed.This book also explores these questions:","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543721771298,"sku":"9789814340489-new","price":262.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789814340489.jpg?v=1776390506"},{"product_id":"michelson-morley-experiments-9789813278189-new","title":"Michelson-Morley Experiments","description":"\u003cp\u003eIn 1887, Michelson and Morley tried to observe in laboratory the \"ether drift\" by measuring a small difference in the velocity of two perpendicular light beams. The result of their measurements, however, was much smaller than the classical prediction and interpreted as a \"null result\". This was crucial to stimulate the first pioneering formulations of relativity and, as such, it represents a fundamental step in the history of science. Since then, many repetitions of that original experiment have been performed with better and better sensitivity and the standard conclusion has been always the same: no genuine ether drift has ever been detected. However, in the authors' new scheme, the small irregular residuals observed in laboratory show surprising correlations with the direct observations of the Cosmic Microwave Background (CMB) with satellites in space. This opens the possibility of finally linking the CMB to a fundamental reference frame for relativity, with substantial implications for the interpretation of non-locality in the quantum theory. The importance of the issue would require new dedicated experimental tests and significant improvements in the data analysis. Otherwise, without such more stringent checks, these crucial experiments will remain forever as an enigma for physics and the history of science. 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As such, it has been very well tested and its remarkable predictions are compatible with most experimental and observational data. However, the observational and experimental results compatible with General Relativity fall in its vast majority under the weak gravitational field regime. In recent years, discrepancies between the data and the corresponding predictions of General Relativity have been observed and have generated intense research activity. One of the most critical aspects of General Relativity is the presence of singularities in extreme physical situations. These discrepancies indicate that either the parameters of the theory must be modified in the regime of strong field gravity\/high energy and large space-time curvature, or the theory itself should be modified. 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It is pointed out that the formalism presented in this book is applicable to various aspects of optical sciences of current interest.\u003c\/p\u003e","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543888986402,"sku":"9789813237704-new","price":82.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789813237704.jpg?v=1776393603"},{"product_id":"principles-space-time-matter-9789813235779-new","title":"Principles of Space-Time-Matter: Cosmology, Particles and Waves in Five Dimensions","description":"\u003cp\u003eThis book is a summing up of the prospects for unification between relativity and particle physics based on the extension of Einstein's theory of General Relativity to five dimensions. This subject was first established by Paul Wesson in his previous best-seller, \u003cem\u003eSpace-Time-Matter\u003c\/em\u003e, and discussed from a different perspective in \u003cem\u003eFive-Dimensional Physics\u003c\/em\u003e, both published by World Scientific in 1999 and 2006 respectively. This third book brings the field up to date and details many new developments and connections to particle theory and wave mechanics in particular. It was in largely finished form at the time of Paul Wesson's untimely death in 2015, and has been completed and expanded by his former student and longtime collaborator, James Overduin.\u003c\/p\u003e","brand":"WORLD SCIENTIFIC PUB CO INC","offers":[{"title":"New","offer_id":51543895277858,"sku":"9789813235779-new","price":103.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/4755\/5618\/files\/9789813235779.jpg?v=1776393724"},{"product_id":"global-nonlnr-stabil-minkowski-space-self-gravit-massive-9789813230859-new","title":"Global Nonlnr Stabil Minkowski Space Self-Gravit Massive ..","description":"\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThis book is devoted to the Einstein's field equations of general relativity for self-gravitating massive scalar fields. We formulate the initial value problem when the initial data set is a perturbation of an asymptotically flat, spacelike hypersurface in Minkowski spacetime. 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A thorough exposition on the canonical framework of Einstein's theory and its extensions reveals the synergy between gravitation and the cosmic clock of our expanding universe that renders time concrete, physical, and comprehensible. In conjunction with a paradigm shift from four-covariance to just spatial diffeomorphism invariance, causal time-ordering of the quantum state of the universe and its evolution in cosmic time become meaningful. The quantum state of the universe is the embodiment of our shared past, present, and future. The advocated framework prompts natural extensions and improvements to Einstein's theory. A salient feature is the addition of a Cotton-York term to the physical Hamiltonian. Besides bringing improved ultraviolet convergence, this radically changes the solution to the initial data problem and the quantum origin of the universe. 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The second part discusses cosmology, including inflation and problems of a unified description of the whole evolution of the universe. The third part concerns multidimensional theories of gravity and contains a number of original results obtained by the authors. Expository work is conducted for a mechanism of symmetries and fundamental constants formation. The original approach to nonlinear multidimensional gravity that is able to construct a unique perspective describing different phenomena is highlighted.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eMuch of the content was previously presented only in journal publications and is new for book contents, e.g., on regular black holes, various scalar field solutions, wormholes and their stability, inflation, clusters of primordial black holes, and multidimensional gravity. The last two topics are added in this new edition of the book. 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