Physics:Prescott Joule and William Thomson: The Discovery
Scientists had long debated what heat actually was. Heat-related phenomena were observed， and generalized theories were drawn up to explain them. Among the scientists who helped to formulate them， a major role was played by James Prescott Joule. He had discovered what is known as the mechanical equivalent of heat. A particular amount of mechanical work generates a particular amount of heat. It was a significant discovery. And in 1978 the international unit of energy was renamed the “joule” in his honour.
- Added：2006
- Country：Germany
- Duration：15
- Time of update：2011/8/15 17:23:03