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| Author | : Cheryl Mansfield |
| Publisher | : North Star Editions, Inc. |
| Total Pages | : 35 |
| Release | : 2017-08-01 |
| Genre | : Juvenile Nonfiction |
| ISBN | : 1635174775 |
Provides readers with an engaging introduction to gravity. With colorful spreads, clear text, helpful diagrams, and a "Science in Action" activity, this book offers an exciting look at physics in the real world.
| Author | : Peter Kosso |
| Publisher | : Cambridge University Press |
| Total Pages | : 237 |
| Release | : 2017-01-20 |
| Genre | : Science |
| ISBN | : 1316867447 |
The concept of gravity provides a natural phenomenon that is simultaneously obvious and obscure; we all know what it is, but rarely question why it is. The simple observation that 'what goes up must come down' contrasts starkly with our current scientific explanation of gravity, which involves challenging and sometimes counterintuitive concepts. With such extremes between the plain and the perplexing, gravity forces a sharp focus on scientific method. Following the history of gravity from Aristotle to Einstein, this clear account highlights the logic of scientific method for non-specialists. Successive theories of gravity and the evidence for each are presented clearly and rationally, focusing on the fundamental ideas behind them. Using only high-school level algebra and geometry, the author emphasizes what the equations mean rather than how they are derived, making this accessible for all those curious about gravity and how science really works.
| Author | : David C. Moore |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2006 |
| Genre | : Science |
| ISBN | : 9781594546600 |
Quantum gravity is the field of theoretical physics attempting to unify the theory of quantum mechanics, which describes three of the fundamental forces of nature, with general relativity, the theory of the fourth fundamental force: gravity. The ultimate goal is a unified framework for all fundamental forces -- a theory of everything. This book examines state-of-art research in this field.
| Author | : Douglas W. MacDougal |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 442 |
| Release | : 2012-12-16 |
| Genre | : Science |
| ISBN | : 1461454441 |
“Newton’s Gravity” conveys the power of simple mathematics to tell the fundamental truth about nature. Many people, for example, know the tides are caused by the pull of the Moon and to a lesser extent the Sun. But very few can explain exactly how and why that happens. Fewer still can calculate the actual pulls of the Moon and Sun on the oceans. This book shows in clear detail how to do this with simple tools. It uniquely crosses disciplines – history, astronomy, physics and mathematics – and takes pains to explain things frequently passed over or taken for granted in other books. Using a problem-based approach, “Newton’s Gravity” explores the surprisingly basic mathematics behind gravity, the most fundamental force that governs the movements of satellites, planets, and the stars. Author Douglas W. MacDougal uses actual problems from the history of astronomy, as well as original examples, to deepen understanding of how discoveries were made and what they mean. “Newton’s Gravity” concentrates strongly on the development of the science of orbital motion, beginning with Galileo, Kepler, and Newton, each of whom is prominently represented. Quotes and problems from Galileo’s Dialogs Concerning Two New Sciences and particularly Newton’s Principia help the reader get inside the mind of those thinkers and see the problems as they saw them, and experience their concise and typically eloquent writing. This book enables students and curious minds to explore the mysteries of celestial motion without having to know advanced mathematics. It will whet the reader’s curiosity to explore further and provide him or her the tools (mathematical or physical) to do so.
| Author | : Louis Komzsik |
| Publisher | : Trafford Publishing |
| Total Pages | : 127 |
| Release | : 2012-02-11 |
| Genre | : Science |
| ISBN | : 1466910186 |
Gravity is the most detectable physical phenomenon of the universe. Nothing or nobody can escape its grasp, even in very large, astronomical distances. It is manifested in many aspects of our lives. Yet we are still not really sure what carries it. The gradually increasing understanding of gravity throughout history and its observed effects in various physical fields are the subjects of this book. This is an enlightening read about one of the most misterious phenomena of our lives that is still far from being fully understood, presenting a historical journey through several millennia of encountering and understanding gravitys mysteries.
| Author | : Richard Feynman |
| Publisher | : CRC Press |
| Total Pages | : 192 |
| Release | : 2018-05-04 |
| Genre | : Science |
| ISBN | : 0429982488 |
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 | : Kevin Czarnecki |
| Publisher | : Cavendish Square Publishing, LLC |
| Total Pages | : 114 |
| Release | : 2016-07-15 |
| Genre | : Juvenile Nonfiction |
| ISBN | : 150261958X |
Gravity addresses the natural phenomenon that both philosophers and mathematicians have been curious about for centuries and the science that makes it all possible. It begins in the time of Aristotle, where the book explains why and how the evolution of thought contributed to the understanding of force, acceleration, and resistancethe early pieces to the puzzle of gravity. Once the basics have been established, the text dives headfirst into Albert Einsteins general theory of relativity and Sir Isaac Newtons law of universal gravitation in order to explain one of the universes greatest mysteries and the effects these discoveries have had on the world.
| Author | : Mokhtar Hassaine |
| Publisher | : World Scientific |
| Total Pages | : 149 |
| Release | : 2016-01-07 |
| Genre | : Science |
| ISBN | : 9814730955 |
'The authors provide an up-to-date, well-organised background and essential elements of supergravity notions as well as all relevant aspects of Chern-Simons forms in gravitation. The book is a self-contained, informative, and much-needed broad introduction into the latest quantum gravity concepts, with a main focus on Chern-Simons gravity and supersymmetry … The book represents a comprehensive and systematic pedagogical exposition on gravitational Chern-Simons (Super)gravity theories, their applications, together with a selection of related recent developments in the field.'Contemporary PhysicsThis book grew out of a set of lecture notes on gravitational Chern-Simons (CS) theories developed over the past decade for several schools and different audiences including graduate students and researchers.CS theories are gauge-invariant theories that can include gravity consistently. They are only defined in odd dimensions and represent a very special class of theories in the Lovelock family. Lovelock gravitation theories are the natural extensions of General Relativity for dimensions greater than four that yield second-order field equations for the metric. These theories also admit local supersymmetric extensions where supersymmetry is an off-shell symmetry of the action, as in a standard gauge theory.Apart from the arguments of mathematical elegance and beauty, the gravitational CS actions are exceptionally endowed with physical attributes that suggest the viability of a quantum interpretation. CS theories are gauge-invariant, scale-invariant and background independent; they have no dimensional coupling constants. All constants in the Lagrangian are fixed rational coefficients that cannot be adjusted without destroying gauge invariance. This exceptional status of CS systems makes them classically interesting to study, and quantum mechanically intriguing and promising.
| Author | : Cesar Augusto Zen Vasconcellos |
| Publisher | : |
| Total Pages | : 260 |
| Release | : |
| Genre | : Astrophysics |
| ISBN | : 9789813277342 |
"For more than a century, our understanding of gravitational physics was based on Albert Einstein's theory of General Relativity, which fundamentally changed our understanding of the Universe, its origin, and its evolutionary process. General Relativity accurately describes a large number of phenomena on very different scales. 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. In this book, we focus our attention on extended alternative gravity theories and the best astrophysical laboratories to probe the strong field regime: black holes, pulsars, and neutron stars"--
