Energy content of biofuel Energy content of biofuel The Energy content of biofuel is a description of the potential energy contained in a given biofuel, measured per unit mass of that fuel, as specific energy, or per unit of volume of the fuel, as energy density. A biofuel is a fuel, produced from living organisms. Biofuels include bioethanol, an alcohol made by fermentation—often used as a gasoline additive, and biodiesel, which is usually used as a diesel additive. Specific energy is energy per unit mass, which is used to describe the energy content of a fuel, expressed in SI units as joule per kilogram
Scientific Revolution introduced the term "scientific revolution", centering his analysis on Galileo. The term was popularized by Butterfield in his "Origins of Modern Science". Thomas Kuhn's 1962 work "The Structure of Scientific Revolutions" emphasized that different theoretical frameworks—such as Einstein's relativity theory and Newton's theory of gravity, which it replaced—cannot be directly compared. The transformation of scientific subject also concerns the social sciences. These inherit from a natural philosophy a dispute that authors like Francesco Bacone and Descartes take charge of following. This particular aspect is questioned. Thus arise disciplines that reflect the natural world with social laws. They are sociology, social