What Has Government Done to Our Money? What Has Government Done to Our Money? What Has Government Done to Our Money? is a 1963 book by Murray N. Rothbard that details the history of money, from early barter systems, to the gold standard, to present day systems of paper money. Rothbard explains how money was originally developed, and why gold was chosen as the preferred commodity to use as money. The essay, "What Has Government Done to Our Money?" was written by Rothbard as an objective historical account with a provocative title. In contrast, "The Case for a 100 Percent Gold Dollar" was an essay with an
Industrial separation processes Industrial separation processes Industrial separation processes are technical procedures which are used in industry to separate a product from impurities or other products. The original mixture may either be a natural resource (like ore, oil or sugar cane) or the product of a chemical reaction (like a drug or an organic solvent). Separation processes are of great economic importance as they are accounting for 40 – 90% of capital and operating costs in industry. The separation processes of mixtures are including besides others washing, extraction, pressing, drying, clarification, evaporation, crystallization and filtration. Often several separation processes are performed successively. Separation