The Austrian project, ‘The latex motor’, investigated the conversion and conservation of energy via four experiments using latex. A latex glove was used to convert thermal energy into potential energy, lifting a weight when heated; the heating and cooling of condoms was used to create a motor driven by heat from a spotlight; the same latex motor was reversed to demonstrate that kinetic energy can be transformed into thermal energy; refrigeration was demonstrated with a latex loop that is cooled on one side (relaxed) and heated on the other (expanded). To learn more about the latex motor, see Eidenberger et al. (2009).