chromatography: a process used for separating mixtures by virtue of differences in absorbency
natural process: a process existing in or produced by nature (rather than by the intent of human beings)
potemkin: a Russian officer and politician who was a favorite of Catherine II and in 1762 helped her to seize power; when she visited the Crimea in 1787 he gave the order for sham villages to be built (1739-1791)