Gravity Where Do We Stand
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Author | : Roberto Peron |
Publisher | : Springer |
Total Pages | : 490 |
Release | : 2015-12-14 |
Genre | : Science |
ISBN | : 3319202243 |
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 |
Total Pages | : 239 |
Release | : 2017-11-07 |
Genre | : Science |
ISBN | : 1681775948 |
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 | : Henry Newell Martin |
Publisher | : |
Total Pages | : 418 |
Release | : 1884 |
Genre | : Human anatomy |
ISBN | : |
Author | : |
Publisher | : Arihant Publications India limited |
Total Pages | : 353 |
Release | : |
Genre | : |
ISBN | : 9326195066 |
Author | : David Paul Greene |
Publisher | : Elsevier Health Sciences |
Total Pages | : 320 |
Release | : 2005-01-01 |
Genre | : Medical |
ISBN | : 0323028225 |
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 |
Total Pages | : 160 |
Release | : 2009 |
Genre | : Philosophy |
ISBN | : 1935071068 |
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 | : Fen SUN |
Publisher | : City University of HK Press |
Total Pages | : 182 |
Release | : 2016-07-15 |
Genre | : Health & Fitness |
ISBN | : 9629372525 |
Kung Fu has evolved from a traditional means of defence to become a system of attacking and defending oneself, with or without weapons, exercising the body and maintaining good physical and mental health. As such, these practices have found an international following. Yet what has remained a largely unexplored area is the scientific principles behind these martial arts. This book not only covers the brief history of Chinese martial arts, but also brings together the wisdom of a Kung Fu grand master with a scientist and teacher to explain the scientific reasons why Kung Fu is the powerful practice that it is. Using the principles of physics, biomechanics and biology, with a number of drawings showing some basic postures of Kung Fu, the authors present a deep understanding of how the styles, the specific movements and methods of attack and defence operate.
Author | : |
Publisher | : |
Total Pages | : 1416 |
Release | : 1964 |
Genre | : Science |
ISBN | : |
Author | : Will Johnson |
Publisher | : Green Dragon Books |
Total Pages | : 268 |
Release | : 1993-11-01 |
Genre | : Religion |
ISBN | : 0893341630 |
Ancient Buddhist meditations and modern Western somatic therapy are united in this fascinating book. Both philosophies — and their healing capabilities — recognize that a structurally balanced human body is the key to a mentally and emotionally balanced human mind. This book explains the beautiful simplicity of these healing techniques and how to make them part of your life. Following its path, you’ll learn how to attain the spiritual and physical balance needed to create your own optimum environment through: -Understanding the experience of balance -Balancing time, present time and change -Balancing sound, vision and the components of reality -Balancing your heart and breath -Balancing “luminous vision” and the “luminous world” -Understanding suffering and its causes -Understanding your heart and breath and how they work together to help create balance What readers are saying about this book: “This book signals a new and sorely needed vitality in a field which, even though it is about life, so often seems to bring out the gray and pedantic in its champions.” — Peter Melchior, senior faculty member, the Guild for Structural Integration
Author | : Paul Grimshaw |
Publisher | : Garland Science |
Total Pages | : 428 |
Release | : 2019-01-08 |
Genre | : Medical |
ISBN | : 1317266013 |
This is the clearest and most straightforward biomechanics textbook currently available. By breaking down the challenging subject of sport and exercise biomechanics into short thematic sections, it enables students to grasp each topic quickly and easily, and provides lecturers with a flexible resource that they can use to support any introductory course on biomechanics. The book contains a wealth of useful features for teaching and learning, including clear definitions of key terms, lots of applied examples, guides to further reading, and revision questions with worked solutions. It has been significantly expanded to encompass rapidly developing areas, such as sports equipment design and modern optoelectronic motion analysis systems, and it includes a number of new sections that further develop the application of biomechanics in sports performance and injury prevention. A new companion website includes a test bank, downloadable illustrations and, where appropriate, suggestions for learning outcomes and/or lab-based sessions for lecturers. Instant Notes in Sport and Exercise Biomechanics has been an invaluable course companion for thousands of students and lecturers over the last decade. Engaging, direct, and now fully refreshed, it is the only biomechanics textbook you’ll ever need.