and The First Law of Thermodynamics by A. R. Miller , Ph.D., of the Royal Society Mond Laboratory, University of Cambridge
It is only 100 years since Joule completed the experiments that showed conclusively that a perpetual motion machine is not feasible. Dr. Miller describes the setting in which Joule carried out his experiments, and the implications of his results embodied in the first law of thermodynamics. The talk ends with a comment on the place Joule's work occupies in physical theory 100 years after its completion.