Gold parting in 1860's Australia. It is able to refine gold up to 99.5% purity. The process involves blowing a stream of chlorine gas over and through a crucible filled with molten impure gold. Impurities in the gold form chlorides before the gold does and these insoluble salts are removed from the melt by skimming the surface. Invented by Emil Wohlwill in 1874, this produces the highest purity gold (99.999%). It is an electrolytic process using pure gold for the cathode (or titanium as a starter cathode) and chloroauric acid (gold chloride-hydrochloric acid) as the electrolyte; this is made by dissolving gold
Social peer-to-peer processes in projects that in turn put their adapted source code in the public domain. The fifth requirement is cultural. The diffusion of mass intellectuality, (i.e. the distribution of human intelligence) and associated changes in ways of feeling and being (ontology), ways of knowing (epistemology) and value constellations (axiology) have been instrumental in creating the type of cooperative individualism needed to sustain an ethos which can enable P2P projects. There are two important aspects to the emergence of P2P in the economic sphere. On the one hand, as format for peer production processes, it is emerging as a 'third mode of