Science and Civilisation in China: Volume 4, Physics and Physical Technology, Part 2, Mechanical Engineering

Capa
Cambridge University Press, 2 de jan de 1965 - 816 páginas
1 Resenha
As Dr Needham's immense undertaking gathers momentum it has been found necessary to subdivide volumes into parts, each to be bound and published separately. The first part of Volume 4, already published, deals with the physical sciences; the second with the diverse applications of physics in the many branches of mechanical engineering; and the third will deal with civil and hydraulic engineering and nautical technology. With this part of Volume 4, then, we come to the application by the Chinese of physical principles in the control of forces and in the use of power; we cross the frontier separating tools from the machine. We have already noticed that the ancient Chinese concept of chhi (somewhat similar to the pneuma of the Greeks) asserted itself prominently in acoustics; but we discover here that the Chinese tendency to think pneumatically was also responsible for a whole range of brilliant technological achievements, for example, the double-acting piston-bellows, the rotary winnowing-fan, and the water-powered metallurgical blowing-machine (ancestor of the steam-engine); as well as for some extraordinary insights and predictions in aeronautics.
 

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Conteúdo

List of Illustrations
xiii
List of Tables
xxxv
Acknowledgements
xli
Vehicles for land transport p
243
Powersources and their employment I Animal trac
303
Hydraulic engineering I Waterraising machinery
330
Powersources and their employment II Water flow
362
j Clockwork six hidden centuries p
435
k Vertical and horizontal mountings the revolving book
546
Powersources and their employment III Wind force
555
m The prehistory of aeronautical engineering p
568
n Conclusion p
599
GENERAL INDEX page
709
Table of Chinese Dynasties
754
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Justice, Nature and the Geography of Difference
David Harvey
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