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Shen Kuo [a] (Chinese: 沈括; 1031–1095) or Shen Gua [b], courtesy name Cunzhong (存中) and pseudonym Mengqi (now usually given as Mengxi) Weng (夢溪翁), [1] was a Chinese polymath, scientist, and statesman of the Song dynasty (960–1279). Shen was a master in many fields of study including mathematics, optics, and horology.
Even before Shen Kuo and Zhu Yu had described the mariner's magnetic needle compass, the earlier military treatise of the Wujing Zongyao in 1044 had also described a thermoremanence compass. [77] This was a simple iron or steel needle that was heated, cooled, and placed in a bowl of water, producing the effect of weak magnetization, although ...
Geomorphology: In his Dream Pool Essays of 1088, Shen Kuo (1031–1095) wrote about a landslide (near modern Yan'an) where petrified bamboos were discovered in a preserved state underground, in the dry northern climate zone of Shanbei, Shaanxi; Shen reasoned that since bamboo was known only to grow in damp and humid conditions, the climate of ...
The Chinese polymath Shen Kuo (1031–1095) of the Song dynasty (960–1279) was the first to accurately describe both magnetic declination (in discerning true north) and the magnetic needle compass in his Dream Pool Essays of 1088, and the Song dynasty writer Zhu Yu (fl. 12th century) was the first to mention use of the compass specifically ...
Shen Kuo's written work of 1088 also contains the first written description of the magnetic needle compass, the first description in China of experiments with camera obscura, the invention of movable type printing by the artisan Bi Sheng (990–1051), a method of repeated forging of cast iron under a cold blast similar to the modern Bessemer ...
Shen Kuo was a renowned government official and military general during the Northern Song period of China. However, he was impeached from office by chancellor Cai Que (蔡確; 1036–1093), who wrongly held him responsible for a Song Chinese military defeat by the Tangut-led Western Xia dynasty in 1081 during the Song–Xia wars. [6]
Under the Mongols, the practice of Chinese medicine spread to other parts of the empire. Ethnic Han physicians were brought along military campaigns by the Mongols as they expanded towards the west. Chinese medical techniques such as acupuncture , moxibustion , pulse diagnosis , and various herbal drugs and elixirs were transmitted westward to ...
Part of a series on the History of China Timeline Dynasties Historiography Prehistoric Paleolithic Neolithic (c. 8500 – c. 2000 BCE) Yellow, Yangtze, and Liao civilization Ancient Xia (c. 2070 – c. 1600 BCE) Shang (c. 1600 – c. 1046 BCE) Late Shang (c. 1250 – c. 1046 BCE) Zhou (c. 1046 – c. 256 BCE) Western Zhou (1046–771 BCE) Eastern Zhou (771–256 BCE) Spring and Autumn (c. 770 ...