Energy

by Vaclav Smil

Every human activity entails the conversion of energy. Changes in the fundamental sources of energy, and in the use of energy sources, are a basic dimension of the evolution of society. Our appreciation of the significance of these processes is essential to a fuller understanding of world history. Vaclav Smil offers a comprehensive look at the role of energy in world history, ranging from human muscle-power in foraging societies and animal-power in traditional farming to preindustrial hydraulic