- Du Shi (Tu Shih)
- SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering[br]fl. 25/57 AD China[br]Chinese official of high rank and patron of engineers.[br]He was Prefect of Nanyang, a region that had long been noted as a centre for metallurgical operations. He devised or at least sponsored the construction of water-powered blowing engines (hydraulic reciprocators or shui pai) for blast furnaces and forges in ironworks for making agricultural implements. This invention is significant because it incorporated all the components needed to convert rotary motion to reciprocating motion. The only watermills previously known in China were those recorded by Huan Tan in the first century BC.[br]Further ReadingJoseph Needham, Science and Civilisation in China, Cambridge: Cambridge University Press, 1965, Vol. IV.2, pp. 31, 32, 85, 370, 377; Clerks and Craftsmen in China andthe West, 1970, pp. 119, 177, 186–7, 189.LRD
Biographical history of technology. - Taylor & Francis e-Librar. Lance Day and Ian McNeil. 2005.