Great Achievements in the Song Dynasty 3 movable-type printing
The scientific development in the Song Dynasty ranked forefront in the world of the time. The world-shaking China"s three greatest inventions-the gun powder, compass, movable-type printing were invented at that time, which altered the whole world"s civilized rate of progress. The abacus began to be used and had become the main calculating tool since then. The famous scientist and polymath Shen Kuo wrote a great book Meng Xi Bi Tan (Dream Stream Essays) which summarized many great scientific achievements during the Northern Song period and the time before.
In economics, the earliest paper money called "Jiao Zi" in the world appeared in the Northern Song period, which soon became the popular currency money of the time. This indicated the high development of the commerce especially in the capital Dongjing (the present Kaifeng). In addition, the development of the silk industry, textile industry and porcelain-making industry were outstanding. The present Zhejiang Province and Sichuan Province were the two biggest silk-producing areas. The emergence of the cotton textile indicated that cotton instead of flax became the raw material of choice to make clothes and quilts. The level of the porcelain-making technique was quite advanced during the Song Dynasty. The five porcelain kilns were Ding Kiln producing white porcelain in present Hebei, Ru Kiln producing the porcelain for royal use in present Henan, Ge Kiln producing the celadon porcelain in present Zhejiang, Guan Kiln producing the porcelain for royal use in present Kaifeng and Jun Kiln producing the underglaze red porcelain in present Henan.
In the area of astronomy, Yang Zhongfu wrote the Tong Tian Calendar which recorded 365.2425 days as the total time of a year and this record was totally same with that of the Gregorian calendar implemented in the West in 1582.
In medicine, the Taiping Holy Prescriptions was the first book on medicinal prescriptions compiled by the related departments in the Song court. This reflected that under economic stability, the government paid great attention to the common people"s health; the development of medical care attested to the civilized degree of society in the Song Dynasty.
In physiology, one of the most influential philosophers was Zhu Xi (1130-1200), whose doctrine was called "Neo-Confucianism" - synthesis of Confucian thought and Buddhist, Taoist, and other ideas. It became the imperial ideology from latter period of the Song Dynasty and on. His teaching emphasized the obedience to the ruler which maintained the feudal hierarchy. To some degree this doctrine hindered the societal development of the time, however, the political, social, and spiritual stability were achieved many generations thereafter.