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
Ways to Strength and Beauty Ways to Strength and Beauty Ways to Strength and Beauty () is a 1925 German silent film directed by Nicholas Kaufmann and Wilhelm Prager. The film was produced by Ufa-Kulturfilmabteilung of Weimar Germany. The action was an idealized, somewhat naive depiction of health and beauty in conformity with nature. The film offered a contrast to the rather hopeless lifestyles available in Berlin and other large cities of Germany during the twenties and became an immediate success. Finally it became the most popular and most important German "kulturfilm" of this period. The film is best known as the first film to