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Air-pumps, electrical machines, colliding ivory balls, coloured sparks, mechanical planetariums, magic mirrors, hot-air balloons - these are just a sample of the devices displayed in public demonstrations of science in the eighteenth century. Public and private demonstrations of natural philosophy in Europe then differed vastly from today's unadorned and anonymous laboratory experiments. Science was cultivated for a variety of purposes in many different places; scientific instruments were built and used for investigative and didactic experiments as well as for entertainment and popular shows....