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Fluoropolymers were discovered accidentally by Plunkett in 1938. He was working on freon and accidentally polymerised tetrafluoroethylene. The result was polytetrafluoroethylene (PTFE), more commonly known as Teflon. PTFE is inert to virtually all chemicals and is considered to be the most slippery material in existence - it has the lowest coefficient of friction of any known solid material. These properties have made it one of the most valuable and versatile technologies ever invented, contributing to significant advancements in areas such as aerospace, communications, electronics, industrial.
First published in 1983. Professor Paul Chao writes Chinese Kinship in the line of the Chinese tradition; it is in this tradition that cultural complexes, such as family structure and kinship in relation to religious, political and economic organizations, are expounded by analysis of concepts and supported by historical documents. For the anthropological study of kinship is indispensable as a supplement to important historical work on basis of written documents. Professor Chao has made, in the main, a study of kinship in China of all known periods. He has taken the points of view of social anthropology and has also given a history of his topic.
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Founded 30 years' ago by one of Taiwan's most respected architects, J. J. Pan & Partners has been steadfastly pursuing its vision of creating lasting, beautiful architecture that is appropriate to its role, harmonious with its time and place, and that best expresses the cultural, social and technological environment. The diversity of projects the multi-award-winning architectural firm has been involved in include master planning and urban design for residential communities, college campuses, and industrial parks; building design for housing complexes, high-tech industrial plants, office buildings, research laboratories, educational and health care facilities; and landscape and interior design