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Economic, political aspirations of the people,throwback nba jerseys, but many will try and defeat, so that he witnessed the phenomenon of clusters of dark examination room with officialdom drawbacks, and the final break with the imperial examination in favor of real learning, he will try the way, on the north and south around the agriculture and handicraft production were made large-scale scientific expedition to collect a wealth of scientific information. this Miles trip, he also made a wide range of social surveys, made an analysis of the Late Ming Society which provided material for his future writing about works, so although he suffered a hard pull involved tens of thousands of miles journey without the fame, but extremely valuable scientific school surgery knowledge and social knowledge is more important is his ideological awakening he became critical of feudalism and the medieval academic tradition attitude of thinkers and scientists.
Song should be the star before the University of Bo, the field of books and studies involving different disciplines of natural sciences and the humanities, is an encyclopedic scholar, his work can be divided into the following four categories: (1) natural and technical sciences a total of a dozen of these writings as in the late Ming or Ming and Qing Dynasties, due to social unrest, coupled with the author there is a strong anti-ideological, it will not be tolerated by the Qing rulers, so most of his works have been lost now preserved cream liquid Described in the first,nba jerseys cheap, followed by the relevant industrial chapter reflects not cut people's livelihood bead chapter pad of heavy agriculture, heavy industry and focus on the idea of ​​real learning.
Volume has six chapters, mostly related to agriculture, a variety of irrigation machinery, and Jiangxi as the representative of the southern rice cultivation techniques particularly detailed. operating points, with special emphasis on advanced Jiaxing, Huzhou, Zhejiang sericulture and silk spinning, cotton jacquard machine structure diagram.