CARNOT laid down the great and incontrovertible principle that if, when we have obtained motive power by the application of heat, we inquire whether we have obtained the maximum of motive power ...

IN a paper on Carnot's Cycle and the Efficiency of Heat Engines, reported in NATURE, August 29, Dr. J. S. Haldane comes to the astonishing conclusion that “the Carnot cycle is radically in ...