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 operations are having several different functions: A heterogeneous mixture (e. g. liquid and solid) can be separated by mechanical separation processes like filtration or centrifugation. Homogeneous mixtures can be separated by molecular separation processes; these are either equilibrium-based or rate-controlled. Equilibrium-based processes are operating by the formation of two immiscible phases with different compositions at equilibrium, an example is distillation (in distillation the vapor has another composition than the liquid). Rate-controlled processes are based on different transport rates of compounds through a medium, examples are adsorption, ion exchange or crystallization. Separation of a mixture into two phases can be done