A fresh and unified exploration of the laws that govern natural change, examining the historical roots and meaning of the concepts of energy and entropy. All natural processes--mechanical, thermal, chemical, electrical, and biological--are viewed as a flow across free energy gradients that interact with one another.

The authors look to the laws of thermodynamics for answers to the questions of evolution, ecology, economics, and even life's origin.

Energy, Entropy, and the Flow of Nature is an attempt to present the essential principles of energetics (thermodynamics) in a manner that is straight-forward, easy to understand, and logically consistent. It arises from the difficulties author Thomas F. Sherman has seen or experienced as a student of physical chemistry, as a teacher of biochemistry and biology, and as a colleague. The central message of the book is that all natural change can be understood as a flow across a gradient, and that part of the effect of every flow is to diminish its own gradient. The book's mission is to build understanding of the central concepts, and with understanding, a degree of confidence in going forth into the many directions that the study of energy opens up. The laws of energy and entropy can indeed, in their applications, become a very complicated subject involving multivariable calculus, differential equations, and challenging problems and calculations. The fundamentals of energetics should be very straightforward, requiring relatively little mathematics--and it is the fundamentals that this book focuses on.

Thermodynamics sets fundamental laws for all physical processes and is central to driving and maintaining planetary dynamics. But how do Earth system processes perform work, where do they derive energy from, and what are the limits? This accessible book describes how the laws of thermodynamics apply to Earth system processes, from solar radiation to motion, geochemical cycling and biotic activity. It presents a novel view of the thermodynamic Earth system explaining how it functions and evolves, how different forms of disequilibrium are being maintained, and how evolutionary trends can be interpreted as thermodynamic trends. It also offers an original perspective on human activity, formulating this in terms of a thermodynamic, Earth system process. This book uses simple conceptual models and basic mathematical treatments to illustrate the application of thermodynamics to Earth system processes, making it ideal for researchers and graduate students across a range of Earth and environmental science disciplines.

In this groundbreaking book, Adrian Bejan takes the recurring patterns in nature—trees, tributaries, air passages, neural networks, and lightning bolts—and reveals how a single principle of physics, the constructal law, accounts for the evolution of these and many other designs in our world. Everything—from biological life to inanimate systems—generates shape and structure and evolves in a sequence of ever-improving designs in order to facilitate flow. River basins, cardiovascular systems, and bolts of lightning are very efficient flow systems to move a current—of water, blood, or electricity. Likewise, the more complex architecture of animals evolve to cover greater distance per unit of useful energy, or increase their flow across the land. Such designs also appear in human organizations, like the hierarchical “flowcharts” or reporting structures in corporations and political bodies. All are governed by the same principle, known as the constructal law, and configure and reconfigure themselves over time to flow more efficiently. Written in an easy style that achieves clarity without sacrificing complexity, Design in Nature is a paradigm-shifting book that will fundamentally transform our understanding of the world around us.

The present volume studies the application of concepts from non-equilibrium thermodynamics to a variety of research topics. Emphasis is on the Maximum Entropy Production (MEP) principle and applications to Geosphere-Biosphere couplings. Written by leading researchers from a wide range of backgrounds, the book presents a first coherent account of an emerging field at the interface of thermodynamics, geophysics and life sciences.

Economies are open systems embedded in an ecosystem with which they exchange matter and energy. Interactions among these systems are vital for each system's performance and are constrained by the laws of physics. This volume pays tribute to economy--environment interactions simultaneously from an economic, ecological and physical perspective. Integrating Economics, Ecology and Thermodynamics provides a first step in identifying and combining the principles of economics, ecology and thermodynamics on a fundamental level. Part I lays out the general context for the approach chosen. Part II familiarizes readers with core concepts of, and methods used in, the three disciplines of economics, ecology and thermodynamics. Part III assesses ways in which these disciplines can be integrated to provide an improved understanding of economy--environment interactions. Part IV illustrates the integration of the three disciplines with a dynamic model of a human community interacting with its environment. In Part V the volume closes with a brief summary and a set of conclusions on the relevance of integrated, interdisciplinary approaches to economy--environment interactions.