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Author: Roberto Peron Publisher: Springer ISBN: 3319202243 Category : Science Languages : en Pages : 490
Book Description
This book presents an overview of the current understanding of gravitation, with a focus on the current efforts to test its theory, especially general relativity. It shows how the quest for a deeper theory, which would possibly incorporate gravity in the quantum realm, is more than ever an open field. The majority of the contributions deals with the manifold facets of “experimental gravitation”, but the book goes beyond this and covers a broad range of subjects from the foundations of gravitational theories to astrophysics and cosmology. The book is divided into three parts. The first part deals with foundations and Solar System tests. An introductory pedagogical chapter reviews first Newtonian gravitational theory, special relativity, the equivalence principle and the basics of general relativity. Then it focuses on approximation methods, mainly the post-Newtonian formalism and the relaxed Einstein equations, with a discussion on how they are used in treating experimental tests and in the problem of generation and detection of gravitational waves. Following this is a set of chapters describing the most recent experiments, techniques and observations on the testing of gravity theories in the laboratory, around the Earth and in the Solar System. The second part is dedicated to astrophysical topics deeply linked with the study of gravitation, namely binary pulsars and the perspective of direct detection of gravitational waves. These cases are paradigmatic in that the gravitational signals act at the same time as messengers helping us to understand the properties of important and wide classes of astrophysical objects. The third part explores the many open issues in current knowledge of gravitation machinery, especially related to astrophysical and cosmological problems and the way possible solutions to them impact the quest for a quantum theory of gravitation and unified theory. Included is a selection of the many possible paths, giving a hint to the subtleties one is called upon. Whenever possible, a close link to observational constraints and possible experimental tests is provided. In selecting the topics of the various contributions, particular care has been devoted to ensure their fit in a coherent representation of our understanding of gravitational phenomena. The book is aimed at graduate level students and will form a valuable reference for those working in the field.
Author: Roberto Peron Publisher: Springer ISBN: 3319202243 Category : Science Languages : en Pages : 490
Book Description
This book presents an overview of the current understanding of gravitation, with a focus on the current efforts to test its theory, especially general relativity. It shows how the quest for a deeper theory, which would possibly incorporate gravity in the quantum realm, is more than ever an open field. The majority of the contributions deals with the manifold facets of “experimental gravitation”, but the book goes beyond this and covers a broad range of subjects from the foundations of gravitational theories to astrophysics and cosmology. The book is divided into three parts. The first part deals with foundations and Solar System tests. An introductory pedagogical chapter reviews first Newtonian gravitational theory, special relativity, the equivalence principle and the basics of general relativity. Then it focuses on approximation methods, mainly the post-Newtonian formalism and the relaxed Einstein equations, with a discussion on how they are used in treating experimental tests and in the problem of generation and detection of gravitational waves. Following this is a set of chapters describing the most recent experiments, techniques and observations on the testing of gravity theories in the laboratory, around the Earth and in the Solar System. The second part is dedicated to astrophysical topics deeply linked with the study of gravitation, namely binary pulsars and the perspective of direct detection of gravitational waves. These cases are paradigmatic in that the gravitational signals act at the same time as messengers helping us to understand the properties of important and wide classes of astrophysical objects. The third part explores the many open issues in current knowledge of gravitation machinery, especially related to astrophysical and cosmological problems and the way possible solutions to them impact the quest for a quantum theory of gravitation and unified theory. Included is a selection of the many possible paths, giving a hint to the subtleties one is called upon. Whenever possible, a close link to observational constraints and possible experimental tests is provided. In selecting the topics of the various contributions, particular care has been devoted to ensure their fit in a coherent representation of our understanding of gravitational phenomena. The book is aimed at graduate level students and will form a valuable reference for those working in the field.
Author: Marcus Chown Publisher: Simon and Schuster ISBN: 1681775948 Category : Science Languages : en Pages : 239
Book Description
Why the force that keeps our feet on the ground holds the key to understanding the nature of time and the origin of the universe. Gravity is the weakest force in the everyday world yet it is the strongest force in the universe. It was the first force to be recognized and described yet it is the least understood. It is a "force" that keeps your feet on the ground yet no such force actually exists. Gravity, to steal the words of Winston Churchill, is "a riddle, wrapped in a mystery, inside an enigma." And penetrating that enigma promises to answer the biggest questions in science: what is space? What is time? What is the universe? And where did it all come from? Award-winning writer Marcus Chown takes us on an unforgettable journey from the recognition of the "force" of gravity in 1666 to the discovery of gravitational waves in 2015. And, as we stand on the brink of a seismic revolution in our worldview, he brings us up to speed on the greatest challenge ever to confront physics.
Author: Missy Vineyard Publisher: Da Capo Lifelong Books ISBN: 0738213055 Category : Health & Fitness Languages : en Pages : 337
Book Description
The Alexander Technique (AT) is a remarkably simple but powerful method for learning to skillfully control how your brain and body interact, allowing you to better coordinate your movements while increasing the accuracy of your mind's thoughts and perceptions. Now, in How You Stand, How You Move, How You Live, leading Alexander Technique master teacher Missy Vineyard sheds a completely fresh light on this revolutionary method and, in the process, offers path-breaking insight into the mind-body connection. Vineyard thoroughly explains and teaches the central skills of the AT through simple self-experiments, and she offers engaging stories of students in their lessons to show its effective application across a range of disciplines, including the performing arts, athletics, health, psychology, and education. How You Stand, How You Move, How You Live introduces us to a world within ourselves that we know surprisingly little about--and thereby helps us to understand why we often cannot do what we should be able to do, why we harm ourselves with chronic tension and anxiety, and why our thoughts often seem beyond our control. Vineyard is also the first AT teacher to draw on cutting-edge research in neuroscience and to synthesize those findings with AT theories and techniques. She fully illuminates the benefits to be reaped by mastery of the Alexander Technique, which include: Release from acute or chronic physical pain Enhanced mental attention and focus Reduced anxiety Improved balance and coordination Relief from tension and stress Increased ease and efficiency performing precise movement skills
Author: Richard Feynman Publisher: CRC Press ISBN: 0429982488 Category : Science Languages : en Pages : 192
Book Description
The Feynman Lectures on Gravitation are based on notes prepared during a course on gravitational physics that Richard Feynman taught at Caltech during the 1962-63 academic year. For several years prior to these lectures, Feynman thought long and hard about the fundamental problems in gravitational physics, yet he published very little. These lectures represent a useful record of his viewpoints and some of his insights into gravity and its application to cosmology, superstars, wormholes, and gravitational waves at that particular time. The lectures also contain a number of fascinating digressions and asides on the foundations of physics and other issues.Characteristically, Feynman took an untraditional non-geometric approach to gravitation and general relativity based on the underlying quantum aspects of gravity. Hence, these lectures contain a unique pedagogical account of the development of Einstein's general theory of relativity as the inevitable result of the demand for a self-consistent theory of a massless spin-2 field (the graviton) coupled to the energy-momentum tensor of matter. This approach also demonstrates the intimate and fundamental connection between gauge invariance and the principle of equivalence.
Author: Richard Craze Publisher: Teach Yourself ISBN: 1444129163 Category : Self-Help Languages : en Pages : 169
Book Description
The Alexander Technique is now proven to overcome back pain, and is recommended by the NHS to sufferers. Buying this book might save you a visit to your doctor, but more importantly will give you a simple, no-nonsense, step-by-step guide to how to use this technique. It makes the physical facts easy to understand and the spiritual aspect straightforward with simple language, making sure that you benefit from better mental health as well as a pain-free life. NOT GOT MUCH TIME? One, five and ten-minute introductions to key principles to get you started. AUTHOR INSIGHTS Lots of instant help with common problems and quick tips for success, based on the author's many years of experience. TEST YOURSELF Tests in the book and online to keep track of your progress. EXTEND YOUR KNOWLEDGE Extra online articles at www.teachyourself.com to give you a richer understanding of the Alexander Technique. FIVE THINGS TO REMEMBER Quick refreshers to help you remember the key facts. TRY THIS Innovative exercises illustrate what you've learnt and how to use it
Author: David Paul Greene Publisher: Elsevier Health Sciences ISBN: 0323028225 Category : Medical Languages : en Pages : 320
Book Description
Approaching the subject of kinesiology from the perspective of occupational therapy, this unique text written by occupational therapists examines the everyday activities of people using the principles of biomechanics to adapt to changes in their functional abilities. This new edition stresses applicability to clinical practice with the inclusion of case examples. In-depth coverage of wrist and hand pathokinesiology, as well as normal kinesiology function of the wrist and fingers Key terms, chapter outlines, and applications that enhance studying and learning 12 appendices and a glossary with metric conversions, review of mathematics, a diagram of body segment parameters, and laboratory activities New material providing explanations of the pathokinesiology of shoulder subluxation, rotator cuff tear, adhesive capsulitis, fractures, tendon injuries, and shoulder problems secondary to CVA More case studies and less emphasis on heavy calculations to ensure the concepts are more easily grasped Perforated lab manual filled with activities tied directly to the chapters Enhanced illustrations for easier visualization of the concepts demonstrated
Author: Ray Comfort Publisher: WND Books ISBN: 1935071068 Category : Philosophy Languages : en Pages : 160
Book Description
I find it so encouraging that in these challenging times of 'culture wars, ' Christian leaders like my friend Ray Comfort are passionately defending the authority of the Bible from its very first verse.
Author: Peter Merton McGinnis Publisher: Human Kinetics ISBN: 0736079661 Category : Education Languages : en Pages : 460
Book Description
Biomechanics of Sport and Exercise, Third Edition With Web Resource and MaxTRAQ Educational 2D Software Access, introduces exercise biomechanics in concise terms that explain external forces and their effects, how the body generates forces to maintain position, and how forces create movement.
Author: Roberto Peron
Author: Roberto Peron
Author: Marcus Chown
Author: Missy Vineyard
Author: Richard Feynman
Author: Richard Craze
Author: Henry Newell Martin
Author: David Paul Greene
Author: Ray Comfort
Author: Peter Merton McGinnis
Author: