Diagrams, experimental equipment and results by [Charles] William Siemens A graph showing the rate of absorption of energy in Watts against the resistance of wire in Ohms for a platinum wire, and a circuit diagram showing the arrangement of Siemens' experiment. Subject: Physics Prints of these diagrams were published in volume 35 of the Proceedings of the Royal Society alongside the paper 'On the dependence of radiation on temperature'. 1883