In 1843 he published results of experiments showing that the heating effect he had quantified in 1841 was due to generation of heat in the conductor and not its transfer from another part of the equipment.
在1883年他发表了一些实验结果，显示他在1841年所定量化的热效应是因为导体本身的发热，而不是从装置其他部分传来的热量。