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Thinking about Physics
Roger G. Newton

Paperback | 2002 | $31.95 / £21.95 | ISBN: 9780691095530
208 pp. | 6 x 9 | 9 line illus.
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Physical scientists are problem solvers. They are comfortable "doing" science: they find problems, solve them, and explain their solutions. Roger Newton believes that his fellow physicists might be too comfortable with their roles as solvers of problems. He argues that physicists should spend more time thinking about physics. If they did, he believes, they would become even more skilled at solving problems and "doing" science. As Newton points out in this thought-provoking book, problem solving is always influenced by the theoretical assumptions of the problem solver. Too often, though, he believes, physicists haven't subjected their assumptions to thorough scrutiny. Newton's goal is to provide a framework within which the fundamental theories of modern physics can be explored, interpreted, and understood.

"Surely physics is more than a collection of experimental results, assembled to satisfy the curiosity of appreciative experts," Newton writes. Physics, according to Newton, has moved beyond the describing and naming of curious phenomena, which is the goal of some other branches of science. Physicists have spent a great part of the twentieth century searching for explanations of experimental findings. Newton agrees that experimental facts are vital to the study of physics, but only because they lead to the development of a theory that can explain them. Facts, he argues, should undergird theory.

Newton's explanatory sweep is both broad and deep. He covers such topics as quantum mechanics, classical mechanics, field theory, thermodynamics, the role of mathematics in physics, and the concepts of probability and causality. For Newton the fundamental entity in quantum theory is the field, from which physicists can explain the particle-like and wave-like properties that are observed in experiments. He grounds his explanations in the quantum field.

Although this is not designed as a stand-alone textbook, it is essential reading for advanced undergraduate students, graduate students, professors, and researchers. This is a clear, concise, up-to-date book about the concepts and theories that underlie the study of contemporary physics. Readers will find that they will become better-informed physicists and, therefore, better thinkers and problem solvers too.

Review:

"In Thinking About Physics, a fast-paced and challenging collection of essays, Newton appears as an opinionated yet approachable discussion leader.. . . Newton cuts a wide swath and sprinkles his analysis with provocations that make it hard to be a passive reader."--Chris Quigg, Science

"In brief, this book is a history of theoretical physics but is not lacking in interpretation of experimental results. . . . [It] will interest anyone who wants to understand the basic concepts of physics."--Choice

"Presents the essence of a great deal of modern physical theory in both a condensed and leisurely digestible form."--H. Rechenberg, European Journal of Physics

Endorsement:

"A significant contribution: clear, concise, and useful. A welcome addition, particularly for its modern flavor and for its writing, which is one of its strongest points. No other book so successfully integrates so much material into such a coherent and readable form."--Gregory Derry, author of What Science Is and How It Works

Table of Contents:

Preface
Introduction3
Ch. 1Theories27
Ch. 2The State of a Physical System43
Ch. 3The Power of Mathematics58
Ch. 4Fields and Particles86
Ch. 5Symmetry in Physics106
Ch. 6Causality and Probability124
Ch. 7Arrows of Time150
Ch. 8Quantum Mechanics and Reality165
Epilogue179
Further Reading181
Bibliography187
Index193

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    File created: 9/23/2014

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