This book addresses the latest advances in general relativity research, including the classical world and spinor formalisms; keys to understanding gravity; the continuum mechanics of space-time; new evidences on matter without energy-stress tensor; a new approach to study gravitational stability of the solutions to the Einstein equations; Mond theory; polynumbers field theory; the algebra, geometry and physics of hyperland; S2-like star orbits near the galactic center in RN and Yukawa gravity; geodesic analysis in multidimensional gravity models; and the collapsing of general relativity and the singularity in the event of the Big Bang and black holes.

An inspiring collection of essays, in which Albert Einstein addresses the topics that fascinated him as a scientist, philosopher, and humanitarian Divided by subject matter-"Science," "Convictions and Beliefs," "Public Affairs," etc.-these essays consider everything from the need for a "supranational" governing body to control war in the atomic age, to freedom in research and education, to Jewish history and Zionism, to explanations of the physics and scientific thought that brought him world recognition. Throughout, Einstein's clear, eloquent voice presents an idealist's vision and relays complex theories to the layperson. Einstein's essays share his philosophical beliefs, scientific reasoning, and hopes for a brighter future, and show how one of the greatest minds of all time fully engaged with the changing world around him. This authorized Philosophical Library book features rare photos and never-before-seen documents from the Albert Einstein Archives at the Hebrew University of Jerusalem.

Relativity Revealed: A Concrete Approach You Can Understand presents Einstein's special theory of relativity in clear and simple language. This book is intended for high school students who may have an interest in science, or for adults who simply want to know what relativity is all about. The material in the book was twice presented by the author, Prof. Ray C. Jones, in a series of popular public lectures at Southwestern Oklahoma State University. Special relativity concerns the differences in physical quantities, such as time intervals, lengths and masses, that occur when measured by observers who are in constant speed motion relative to each other or to the objects being measured. Although relativity begins with simple statements about the speed of light and the nature of clocks, we soon find that it changes our perceptions of space and time and leads to an understanding of nuclear fission and fusion processes and the radiation of energy from the sun. This book, by an exceptional teacher, is a very good place to begin to learn of these things. In this book, Prof. Jones develops the major ideas of relativity from simple postulates about observations of the speed of light. The basic ideas are presented in simple language, but are then extended into a consistent logical framework with the aid of some minimal high school level mathematics. (The details of mathematical developments are presented in Appendices that will help to sharpen reader's skills.)

Tired of popular science books written by renowned physicists who think you cannot comprehend what they do, so... all you deserve is the illusion of understanding? If yes, this is the book for you. The fact that the reader may not have a scientific education does not mean that s/he does not have the intelligence to understand profound concepts -- as long as they are presented with semantic and epistemological clarity. After all, Einstein said that Science is simply the refinement of our intuition and everyday experiences. Galloping with Light is a symbolic cavalcade that starts with the discovery of fire 1.5 million years ago; it allegorically employs the imagination of an adolescent called Einstein to explain the Theory of Relativity in non-scientific terms, and ends with the Apollo 11 landing on the Moon in 1969 -- depositing on lunar soil a laser retro-reflector which would prove, once again, that Einstein was right. Motivated by his own difficulties to understand Relativity Theory, and convinced that it is possible to teach the layperson without distorting the subject matter, the author takes an approach utterly opposed to that of most popular science books. Knowing he has to demolish what the reader understands by time, distance, and motion, the author -using his experiences as a child, adolescent, and adult- dedicates the first half of the book to convince the reader that our intuition and common sense, as applied to those three everyday concepts, have a foundation as solid as that of a castle on the sand. The purpose of this book is to demystify and 'defolklorize' the reader; to destroy the aura of mystery and incomprehensibility surrounding Relativity Theory, unmasking and debunking the body of popular (and scientific) beliefs (mostly erroneous) which -taking advantage of the confusion between relativity and subjectivity, as well as of Einstein's popularity and prestige- have been used to validate preposterous assertions in fields like psychology, morality, spirituality, sociology, literature, art, etc.

A nut and its shell, like any X and Y, are joined and separated by a circle. The line is always diameter and circumference of a circle. Thus, pi controls reality, 50-50.

The assertion about the possibility of motion faster than light does not contradict the special relativity. In order to develop the special relativity, is sufficient to assume independence of the speed of light on the reference frame. From equations of special relativity, it follows that object moving faster than light in vacuum cannot be carrier of causal relationship. In the reference frame S3, moving with superluminal speed relative to the reference frame S2, temporal and spatial axes are swapped. Therefore, causal relationships in reference frames S2 and S3 are different. There exists a reference frame S1, moving relative to the reference frame S2 with speed v

The General Principle Of Relativity In Its Philosophical And Historical Aspect (1920)

Relativity: The Special and the General Theory began as a short paper and was eventually published as a book written by Albert Einstein with the aim of giving:
. . . an exact insight into the theory of relativity to those readers who, from a general scientific and philosophical point of view, are interested in the theory, but who are not conversant with the mathematical apparatus of theoretical physics.
- from the Preface
It was first published in German in 1916 and later translated into English in 1920. It is divided into 3 parts, the first dealing with special relativity, the second dealing with general relativity and the third dealing with considerations on the universe as a whole. There have been many versions published since the original in 1916, the latest in December, 2011. The work has been labeled by whom?] unique in that it gives readers an insight into the thought processes of one of the greatest minds of the 20th century.

This book has its origin in a one-year course for non-science majors that Professor Firk taught at Yale throughout the decade of the 1970's. It is intended for the inquisitive reader who wishes to gain an understanding of the immortal work of Einstein, the greatest scientist since Newton. Special Relativity deals with measurements of space, time and motion in inertial (non-accelerating) frames of reference. A popular account of Einstein's Theory of General Relativity, a theory of space, time, and motion in the presence of gravity, is given. The contents include: 1. Understanding the physical universe 2. Describing everyday motion; relative motion, Newton's Principle of Relativity, problems with light, 3. Einstein's Theory of Special Relativity simultaneity and synchronizing clocks, length contraction and time dilation, examples of Einstein's world, 4. Newtonian and Einsteinian mass 5. Equivalence of energy and mass, E = mc2 6. Principle of Equivalence 7. Einsteinian gravity; gravity and the bending of light, gravity and the flow of time, and red shifts, blue shifts, and black holes.

While layman may enjoy many parts of this book there are mathematical parts that may be challenging. This book describes a theory of the multiverse - an infinite expanse of space in which island universes are scattered including our universe. It develops the concept of universe particles and their interactions that lead to colliding universes, the creation of universe - anti universe pairs, and other dynamical phenomena: Tachyonic universes, left and right handed universes and so on. By making the multiverse a complex 16-dimensional space the author is able to show many newly found cosmological phenomena (by the Planck observatory and NASA's WMAP laboratory) can be understood: the origin of the cosmological constant, the origin of left and right handed universes (Our universe appears to favor left-handedness.), deviations from uniform expansion of our universe, spatial asymmetries of our universe, our lopsided universe, and an understanding of the origin for the newly found Web of Galaxies (that links all the groups of galaxies) in our universe. In addition the author develops a 16-dimensional baryonic gauge field, a universe particle quantum field theory representing expanding/contracting universes, an extension of the Wheeler-DeWitt equation to universes residing in a flat 16-dimensional multiverse called the Flatverse, features of the sister universe that are the source of inertial reference frames ..., and evidence for a wormhole connecting our universe and its sister universe. A new view of a new, larger reality.