Energy is at the heart of physics and of huge importance to society and yet no book exists specifically to explain it, and in simple terms. In tracking the history of energy, this book is filled with the thrill of the chase, the mystery of smoke and mirrors, and presents a fascinating human-interest story. Moreover, following the history provides a crucial aid to understanding: this book explains the intellectual revolutions required to comprehend energy, revolutions as profound as those stemming from Relativity and Quantum Theory. Texts by Descartes, Leibniz, Bernoulli, d'Alembert, Lagrange, Hamilton, Boltzmann, Clausius, Carnot and others are made accessible, and the engines of Watt and Joule are explained.
Many fascinating questions are covered, including:
- Why just kinetic and potential energies - is one more fundamental than the other?
- What are heat, temperature and action?
- What is the Hamiltonian?
- What have engines to do with physics?
- Why did the steam-engine evolve only in England?
- Why S=klogW works and why temperature is IT.
Using only a minimum of mathematics, this book explains the emergence of the modern concept of energy, in all its forms: Hamilton's mechanics and how it shaped twentieth-century physics, and the meaning of kinetic energy, potential energy, temperature, action, and entropy. It is as much an explanation of fundamental physics as a history of the fascinating discoveries that lie behind our knowledge today.
This book explains the idea of energy by tracing the story of its discovery, from Galileo through to Einstein. It explains the physics using the minimum of mathematics, presenting both a gripping historical narrative and a fascinating introduction to an elusive physical concept.
This book makes me proud to be a physicist, for two reasons. First it is a tale of the giants of the past who contributed to our present understanding of energy, people whose astonishing intuition took them from gossamer clues to the understanding we have today of one of the most basic explanatory concepts in physics. We've had some pretty good players in our team. More than this - and this is the second reason - this is a story as much about invention as discovery ... I am sure all physicists would enjoy this book and indeed learn from it.
