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[109] [110] After these innovations, the windmill was finally introduced to China in the early 13th century via the Jin dynasty in northern China, during the late Song dynasty. The Persian scholar Ali ibn Sahl Rabban al-Tabari wrote c. 850 that the earlier Caliph Umar ibn al-Khattab was murdered in 644 by the technician Abu Lu'lu'a, who claimed ...
In 2016, China became the country with the highest science output, as measured in publications. While the US had been the biggest producer of scientific studies until then, China published 426,000 studies in 2016 while the US published 409,000. [109]
The History of Clinical Endocrinology: A Comprehensive Account of Endocrinology from Earliest Times to the Present Day. New York: Pantheon Publishing Group Inc. ISBN 1-85070-427-9. Needham, Joseph. (1986). Science and Civilization in China: Volume 3, Mathematics and the Sciences of the Heavens and the Earth. Taipei: Caves Books, Ltd.
In the context of China's high yield agriculture (hence surpluses in the economy which were translated into leisure time for other pursuits) and Confucian [meritocracy] (hence a continued over-supply of the literate vis-à-vis the openings in officialdom and persistent record keeping by the premodern standards), [1] [2] China became one of the hotbeds of scientific discoveries and ...
Ultrasound is defined by the American National Standards Institute as "sound at frequencies greater than 20 kHz". In air at atmospheric pressure, ultrasonic waves have wavelengths of 1.9 cm or less. Ultrasound can be generated at very high frequencies; ultrasound is used for sonochemistry at frequencies up to multiple hundreds of kilohertz.
The princes Yang Wo and Wang Jian, who did not recognize Zhu Wen, became de facto independent, as did their states Wu and Former Shu, respectively. Zhu Wen created Qian Liu the prince of Wuyue. Zhu Wen created Ma Yin, the jiedushi of the Wu'an Circuit, prince of Chu. 909: 27 April: Zhu Wen created Wang Shenzhi prince of Min. 917
As written by Yu Tianchi in his Shadou jijie (痧痘集解) of 1727, which was based on Wang Zhangren's Douzhen jinjing lu (痘疹金鏡錄) of 1579, the technique of inoculation to avoid smallpox was not widespread in China until the reign of the Longqing Emperor (r. 1567 – 1572) during the Ming dynasty (1368–1644). [296]
Similar expressions such as "5000 years of Chinese history" have also emerged and become popular in China, including the People's Republic of China period. For example, the popular history books on Chinese history compiled by mainland Chinese writers Lin Handa and Cao Yuzhang were published under the title of "Five Thousand Years Up and Down". [5]