Shen Kuo

[7] Alongside his colleague Wei Pu, Shen planned to map the orbital paths of the Moon and the planets in an intensive five-year project involving daily observations, yet this was thwarted by political opponents at court.

[8] To aid his work in astronomy, Shen Kuo made improved designs of the armillary sphere, gnomon, sighting tube, and invented a new type of inflow water clock.

Shen Kuo devised a geological hypothesis for land formation (geomorphology), based upon findings of inland marine fossils, knowledge of soil erosion, and the deposition of silt.

His father Shen Zhou (沈周; 978–1052) was a somewhat lower-class gentry figure serving in official posts on the provincial level; his mother was from a family of equal status in Suzhou, with her maiden name being Xu (許).

[11] Since Shen was unable to boast of a prominent familial clan history like many of his elite peers born in the north, he was forced to rely on his wit and stern determination to achieve in his studies, subsequently passing the imperial examinations and enter the challenging and sophisticated life of an exam-drafted state bureaucrat.

[13] With his leadership position in the bureau, Shen was responsible for projects in improving calendrical science,[10] and proposed many reforms to the Chinese calendar alongside the work of his colleague Wei Pu.

"[18] While employed by the central government, Shen Kuo was also sent out with others to inspect the granary system of the empire, investigating problems of illegal tax-collection, negligence, ineffective disaster relief, and inadequate water-conservancy projects.

[22] In regard to the Lý dynasty of Đại Việt (in modern northern Vietnam), Shen demonstrated in his Dream Pool Essays that he was familiar with the key players (on the Vietnamese side) in the prelude to the Sino-Vietnamese War of 1075–1077.

In the 1070s, Shen had purchased a lavish garden estate on the outskirts of modern-day Zhenjiang, Jiangsu province, a place of great beauty which he named "Dream Brook" ("Mengxi") after he visited it for the first time in 1086.

[32] Joseph Needham suggests that certain pottery vessels of the Han dynasty (202 BC – 220 AD) showing artificial mountains as lid decorations may have influenced the development of the raised-relief map in China.

[38] In the realms of botany, zoology, and mineralogy, Shen Kuo documented and systematically described hundreds of different plants, agricultural crops, rare vegetation, animals, and minerals found in China.

[47][48] However, he did not anticipate the more complex and matured system of unit proportions embodied in the extensive written work by scholar-official Li Jie (1065–1110), the Treatise on Architectural Methods (營造法式; Yingzao Fashi) of 1103.

[61] Shen wrote extensively about what he had learned while working for the state treasury, including mathematical problems posed by computing land tax, estimating requirements, currency issues, metrology, and so forth.

[6] The preference of use for the twenty-four-point-rose compass may have arisen from Shen's finding of a more accurate astronomical meridian, determined by his measurement between the pole star and true north;[6] however, it could also have been inspired by geomantic beliefs and practices.

"[81] While working in the Bureau of Astronomy, Shen Kuo's interest in archaeology and old relics led him to reconstruct an armillary sphere from existing models as well as from ancient texts that could provide additional information.

[90] Shen wrote that in the Zhiping reign period (1064–1067) a man of Zezhou unearthed an object in his garden that looked like a serpent or dragon, and after examining it, concluded the dead animal had apparently turned to "stone".

[93] Considering that damp and gloomy low places provide suitable conditions for the growth of bamboo, Shen deduced that the climate of Yanzhou must have fit that description in very ancient times.

[103] The philosopher Wang Chong argued against the 'radiating influence' theory of Jing Fang's writing in the 1st century BC and that of Zhang Heng (78–139); the latter two correctly hypothesized that the brightness of the Moon was merely light reflected from the Sun.

"[112] Along with his colleague Wei Pu in the Bureau of Astronomy, Shen Kuo planned to plot out the exact coordinates of planetary and lunar movements by recording their astronomical observations three times a night for a continuum of five years.

[114] Shen Kuo wrote that during the Qingli reign period (1041–1048), under Emperor Renzong of Song (1022–1063), an obscure commoner and artisan known as Bi Sheng (990–1051) invented ceramic movable type printing.

[121] Yao Shu (1201–1278), an advisor to Kublai Khan, once persuaded a disciple Yang Gu to print philological primers and Neo-Confucian texts by using what he termed the "movable type of Shen Kuo".

While visiting the iron-producing district at Cizhou in 1075, Shen described the "partial decarburization" method of reforging cast iron under a cold blast, which Hartwell, Needham, and Wertime state is the predecessor of the Bessemer process.

[130] Shen was worried about deforestation[f] due to the needs of the iron industry and ink makers using pine soot in the production process, so he suggested for the latter an alternative of petroleum, which he believed was "produced inexhaustibly within the earth".

[134] Nathan Sivin proposes that Shen was the first in history to "make a clear distinction between our unconnected experiences and the unitary causal world we postulate to explain them," which Biderman and Scharfstein state is arguably inherent in the works of Heraclitus, Plato, and Democritus as well.

[137] When describing an event where lightning had struck a house and all the wooden walls did not burn (but simply turned black) and lacquerwares inside were fine, yet metal objects had melted into liquid, Shen Kuo wrote: Most people can only judge of things by the experiences of ordinary life, but phenomena outside the scope of this are really quite numerous.

[138]In his commentary on the ancient Confucian philosopher Mencius (372–289 BC), Shen wrote of the importance of choosing to follow what one knew to be a true path, yet the heart and mind could not attain full knowledge of truth through mere sensory experience.

In 1075, Shen Kuo wrote the Xining Fengyuan Li (熙寧奉元曆; The Oblatory Epoch astronomical system of the Splendid Peace reign period), which was lost, but listed in a 7th chapter of a Song dynasty bibliography.

[162] In the Routledge Curzon Encyclopedia of Confucianism, Xinzhong Yao states that Shen Kuo's legacy was tainted by his eager involvement in Wang Anshi's New Policies reforms, his actions criticized in the later traditional histories.

"[167] Huff writes that this was a systemic problem of early Chinese science, which lacked systematic treatment that could be found in European works such as the Concordance and Discordant Canons by the lawyer Gratian of Bologna (fl.

[171] In this exhibition hall there stands a 1.4 m (4.6 ft) tall statue of Shen Kuo sitting on a platform, along with centuries-old published copies of his Dream Pool Essays in glass cabinets, one of which is from Japan.

The Bencao on traditional Chinese medicine ; printed with woodblock printing press in 1249; Shen grew ill often as a child, and so developed an interest in medicinal cures.
Shen's confidant, Emperor Shenzong of Song (r. 1067–1085), a Song era portrait painting.
Portrait painting of Wang Anshi .
Boundaries of the Northern Song dynasty , the Liao dynasty , and the Western Xia .
Painting of a Buddhist luohan , by Liu Songnian , painted in 1207; Shen Kuo not only listed literati painting as one of his cherished pastimes, but also Buddhist meditation . [ 29 ]
A Han dynasty incense burner, showing artificial mountains as a lid decoration, which may have influenced the invention. [ 33 ]
A side view of a pound lock for canals, invented in China in the 10th century and described by Shen.
Five bracket arm bases and two cantilever arms, from the Yingzao Fashi of 1103.
Yang Hui triangle ( Pascal's triangle ) using rod numerals , from a book by mathematician Zhu Shijie , 1303
An 18th-century diagram of camera obscura
A Han dynasty (202 BC–220 AD) ladle-and-basin lodestone south-pointing compass , used by ancient Chinese geomancers , but not for navigation.
Bronzeware from the Shang dynasty (1600–1046 BC); Song era antiquarians and archeologists in search of antiques for reviving ancient rituals claimed to have found bronzewares dated as far back as the Shang era, which contained written inscriptions. [ 79 ]
View of the Taihang Mountains , where Shen Kuo had his epiphany about geomorphology .
Bamboo and rocks by Li Kan (1244–1320); using evidence of fossilized bamboo within China's dry northwestern climate zone, Shen Kuo hypothesized that climates naturally shifted geographically over time .
Shen accurately hypothesized that rainbows were caused by sunlight passing through rain droplets.
One of the five star maps published in 1092 AD for Su Song 's horological and astronomical treatise, featuring Shen Kuo's corrected position of the pole star .
The original diagram of Su Song 's book of 1092 showing the inner workings of his clocktower ; a mechanically rotated armillary sphere crowns the top.
The Chinese Diamond Sutra , the oldest known printed book in world history (868), using woodblock printing .
A revolving table typecase with individual movable type characters arranged primarily by rhyming scheme, from Wang Zhen 's book of agriculture published in 1313.
Ideas of the philosopher Mencius deeply influenced Shen.
A painting by Dong Yuan , who Shen praised for his ability to portray landscapes and natural scenery in a grand but realistic style.
Poet and statesman Su Shi , whose pharmaceutical work was combined with Shen Kuo's in 1126, in a Yuan dynasty portrait by Zhao Mengfu .
A sketch of Shen Kuo by an anonymous artist of the Qing dynasty , 18th century