- Song Yingxing
Song Yingxing (
Traditional Chinese:宋應星; Simplified Chinese:宋应星; Wade Giles: Sung Ying-Hsing; 1587-1666 AD) was a Chinese scientist and encyclopedist who lived during the late Ming Dynasty(1368-1644). He was the author of an encyclopediathat covered a wide variety of technical subjects, including the use of gunpowderweapons.Needham, Volume 5, Part 7, 36.] Comparing him to the famous French encyclopedist, the British sinologistand historian Joseph Needhamcalled Song Yingxing, "The Diderot of China."Needham, Volume 5, Part 7, 102.]
Song Yingxing achieved only modest wealth and influence during his life. Born in 1587 to a gentry family of reduced circumstances, he participated in the
imperial examinations, and passed the provincial test in 1615, at the age of 28. However, he was repeatedly unsuccessful in the metropolitan examination. Song sat for the test five times, the last being in 1631 at the age of 44. After this last failure, he held a series of minor positions in provincial government. The works for which Song is known today all date from 1636 to 1637. The repeated trips to the capital to participate in the metropolitan examination likely provided him with the broad base of knowledge demonstrated in the works. Song retired from public life in 1644, after the fall of the Ming dynasty.cite journal | author=Cullen, Christopher| title=The Science/Technology Interface in Seventeenth-Century China: Song Yingxing 宋 應 星 on "qi" 氣 and the "wu xing" 五 行| journal=Bulletin of the School of Oriental and African Studies, University of London| year=1990| volume=53| issue=2| url=http://links.jstor.org/sici?sici=0041-977X%281990%2953%3A2%3C295%3ATSIISC%3E2.0.CO%3B2-1| pages=295–318]
Although Song Yingxing's encyclopedia was a significant publication for his age, there had been a long tradition in the history of
Chinese literaturein creating large encyclopedic works. For example, the " Four Great Books of Song" compiled much earlier in the 10th and 11th centuries (and all four combined, were much more extensive in size than his work). Just a few decades before Yingxing's work, there was also the Ming Dynasty encyclopedia of the " Sancai Tuhui", written in 1607 and published in 1609. Song Yingxing's famous work was the "Tiangong Kaiwu" (天工開物), or "The Exploitation of the Works of Nature", published in May of 1637.Song, xiv.] The "Tiangong Kaiwu" is an encyclopedia covering a wide range of technical issues, including the use of various gunpowder weapons. Copies of the book were very scarce in China during the Qing dynasty(1644-1911) (due to the government's establishment of monopoliesover certain industries described in the book), but original copies of the book were fortunately preserved in Japan.The technical encyclopedia of the "Tiangong Kaiwu" was divided into separate chapters with broad overall themes, which included (a) agriculture, irrigation, and hydraulic engineering,Needham, Volume 4, Part 2, 171-172] (b) sericultureand textiletechnology, (c) agriculture and milling processes, (d) salttechnology, (e) sugartechnology, (f) ceramics industry, (g) bronze metallurgy, (h) transportation; ships and carts, (i) ironmetallurgy, (j) coal, vitriol, sulfur, and arsenic, (k) oiltechnology, (l) papermaking, (m) metallurgyof silver, lead, copper, tin, and zinc, (n) military technology, (o) mercury, (p) ink, (q) fermented beverages, (r) pearls and jade. It featured detailed illustrations that were valuable for historians in understanding many early Chinese production process. For example, illustrations for brick-making; one shows a kilnmaster checking the temperature of a furnace while an assistant stands by and douses the kiln to induce superficial glazing; [Brook, 20.] another illustration shows a brick-maker filling a wooden mold with clay while he dresses the brick's surface with a finishing wire strung on a bow. [Brook, 21.]
As the historian Joseph Needham points out, the vast amount of accurately drawn illustrations in this encyclopedia dwarfed the amount provided in previous Chinese encyclopedias, making it a valuable written work in the history of Chinese literature.Needham, Volume 4, Part 2, 172.] At the same time, the Tiangong Kaiwu broke from Chinese tradition by rarely referencing previous written work. It is instead written in a style strongly suggestive of first-hand experience. In the preface to the work, Song attributed this deviation from tradition to his poverty and low standing.
In the first chapter, The Growing of Grains, Song Yingxing wrote about the great necessity of rural farmers in society, and although they were emulated by tradition, were scoffed at by aristocrats throughout time. Song Yingxing began the chapter with the context of this paragraph in mind:
Song wrote about the general terms used in agriculture, saying that the "hundred grains" referred to crops in general, while the "five grains" were specifically
sesamum, legumes, wheat, panicled millet, and glutinous millet ( ricewas not included in this, says Song, because the ancients were only used to the environment of northern China, which was devoid of rice at the time).Song, 3-4.] He wrote about the meticulous and proper cultivationof each crop, as well as how to avoid agricultural disasters in the process.Song, 3-31.]
In aiding the text, he also provided many different drawn illustrations, including a man loosening the soil by ploughing with an
ox,Song, 5.] soil broken into fine particles by an ox-drawn harrow,Song, 7.] men engaging in foot weeding and hand weeding of rice,Song, 9-10.] a vertical waterwheelwith hollow wooden cylinders dipping water into an open woodwork tub feeding an irrigation canal,Song, 13.] a cylinder-type chain pumppowered by a vertical waterwheel placed in a narrow, low-lying stream with a mounted rotating wheel placed at the top of an elevated plane, whereupon the cylinders fed water into an irrigation canal,Song, 15.] a wooden river damcorrecting the flow of water around a field of crops,Song, 16.] a sluicegate controlling the flow of a water channel,Song, 17] a square-pallet chain pump powered by a horizontal waterwheel, connected by an axleto a gear-tooth wheel above, which in turn engaged a vertical gear-tooth wheel,Song, 18.] another square-pallet chain pump employing an ox-drawn set of geared wheels,Song, 19.] two different types of foot-treadle operated chain pumps,Song, 20-21.] a counterweighted leverfor raising or lowering a bucket,Song, 22.] a pulley-wheel for raising or lowering a bucket,Song, 25.] an ox-drawn plough-seeder with a cone-shaped filter,Song, 26.] an ox-drawn pair of stone rollers, used for pressing seeds into the soil,Song, 27.] the simpler process of sewing seeds by hand and pressing them into the dirt by foot,Song, 28.] and finally, an illustration of men cultivating wheat with broad-headed hoes.Song, 30.]
In another chapter, The Preparation of Grains, he also provided illustrations for rolling rice grains with a wooden ox-drawn roller,Song, 84] a crank-operated rotary-fan
winnowingmachine that separated husks,Song, 85.] a hand-operated wooden hulling mill,Song, 87.] a hand-operated earthen hulling machine,Song, 88.] a process of sieving to separate husk-free grains,Song, 89.] two types of foot-operated trip hammers,Song, 91-92.] a hydraulic-powered trip hammer powered by a waterwheel that rotated an axle of overhead cams,Song, 93.] a horse-drawn hulling mill,Song, 96.] an oxen-drawn grinding mill,Song, 98.] a grinding mill operated by a vertical waterwheel,Song, 99.] and a rolling mill operated by a horizontal waterwheel, the waterwheel placed in a rushing current found under a wooden deck that rotated the axle of the stone roller above within the interior of a building.Song, 103.]
The subject of maritime and nautical technology and engineering was discussed extensively by Song Yingxing. Song noted that in northern China the chief means of transportation was by
carriageand cart, while in southern China it was by shipand boat.Song, 171.] He provided various nuances about nautical matters, such as metal anchors for battleships and sea-going vessels weighing up to 30,000 catties.Song 189.] Song noted that there were thousands of names classifying different boats found in China, which was often named in accordance to their overall shape, cargocapacity, and quality (of material used and construction). For example, he described the layout and construction of the grain tributeboat as a shallow, flat-bottom craft, with the preferred woods of cedarand chestnutbeing used to construct the bulkhead compartments of the hull.Song, 172.] Song also wrote of the methods used by the Chinese in his day for pearl divingin Guangdong.Needham, Volume 4, Part 3, 668.] Song wrote that these divers were able to stay underwaterfor prolonged periods of time since a secure rope was tied around their waists connected to the ship as they breathed through a long curving pipe that led up above the surface of the water. This long breathing tube was strengthened by rings of tin and fastened to a watertight leather face mask. A drawn illustration of this was provided in his book.Needham, Volume 4, Part 3, 669.]
In his admiration for the
stern-mounted steering rudder(which had been known to the Chinese since at least the 1st century AD),Needham, Volume 4, Part 3, 649-650.] he wrote:
The nature of a ship is to follow water as the grass bends under the wind. Therefore a rudder is constructed to divide and make a barrier to the water, so that it will not itself determine the direction of the vessel's motion. As the rudder is turned, the water turbulently presses on it, and the boat reacts to it. The dimensions of the rudder should be such that its base is level with the bottom of the (inland transport) ship. If it is deeper, even by an inch, a shallow may allow the hull to pass but the stern with its rudder may stick firmly in the mud (thus grounding the vessel); then if the wind is at gale strength that inch of wood will give rise to indescribable difficulties. If the rudder is shorter, even by an inch, it will not have enough turning forces to bring the bows round. The water divided and obstructed by the rudder's strength, is echoed as far as the bows; it is as if there were underneath the hull a swift current carrying the vessel in the very direction desired. So nothing needs to be done at the bows...The rudder is worked by a
tillerattached to the top of its post, a 'door-bar' (as the sailors call it). To turn the boat to the north the tiller is thrust to the south, and "vice versa"...The rudder is made of a straight post of wood [more than 10 ft. long and 3 ft. in circumference for the grain-ships] with the tiller at the top, and an axe-shaped blade of boards fitted into a groove cut at its lower end. This blade is firmly fastened to the post with iron nails, and the whole is fixed (with tackle) to the ship to perform its function. At the end of the stern there is a raised part (for the helmsman) which is also called the 'rudder-house'.Needham, Volume 4, Part 3, 634.]
("Note: in this passage he speaks mostly of fresh-water ships at
Poyang Lakeand the Grand Canal".)
ericulture and cotton
Song Yingxing opened his chapter on clothing with the aspects of
sericulturein producing silk. He gave an accurate description of the raising of silkworms, along with their instinctual matingtradition.Song, 36.] Those raising the silkworms had their eggs deposited on sheets of paper or cloth, and stored for use in the following year. He wrote that in some regions a bathing process was used on these sheets, employing rain water, lime water, or brine, and gave specifications on the timing for this during winter, in the 12th month of the year. The reason for this, he said, was so that the inferior eggs would die in the process, hence less mulberryleaves would be consumed needlessly. He also provided specifications on how to avoid damaging the eggs in the long process of preparation before the bathing process in the 12th month.Song, 36-37.] He noted the differences between two general forms of silkworms, late and early, while providing information on a wide variety in different silkworm breeds and cocoons,Song, 37.] and even silkworm diseases.Song, 41.] After their eventful hatching, he described the proper living conditions and environment that the silkworms should be immersed in,Song, 38.] as well as the care that should be given in feeding them.Song 39-41.] He warned of different sources of foul odors and smoke that had the capability of killing the silkworms if they came into contact. He described the spinning of cocoons,Song, 42.] gathering of cocoons, sorting of cocoons,Song, 48.] and the different pests such as birds and mosquitoes that should be avoided,Song, 42, 48.] He also described the proper planting of mulberry trees and how to harvest them.Song, 38-39.] For the process of making silk, he noted that raw silk could not be reeled into normal silk until a formal wadding process was done.Song, 48.] He described the reeling of silk fabric with a reeling machine,Song 48-49.] the spooling of silk fibers,Song, 49-50.] the spinning of silk fibers into weftyarns, the silken threads drawn into a warp frame for weaving,Song, 50.] and the "ingenious" works of figure designing.Song, 56.] He also described the proper dimensions of different draw looms,Song, 55-56.]
Song Yingxing wrote that although silk was reserved for those with economic means, both rich and poor used cotton clothing during the winter.Song, 60.] In ancient times, he said,
cottonwas called "xima" ('nettle- hemp'). He outlined two different types of cotton and their characteristics: tree cotton (Ceiba pentandra) and the cotton plant (Gossypium indicum). He noted their planting in spring and their picking by autumn, as well as use of a cotton ginto separate cotton seeds that are naturally tightly fastened to fiber bolls of cotton.Song, 60-61.] He noted the process of straightening the cotton fibers with wooden boards, which prepared them for the spinning wheel, the "slivers drawn out to desired size and twisted into yarns." After describing the weaving process of cotton and the different patterns used, he also described cotton padding during winter, in ancient times it was hemp padding, and that the rich could afford silk padding in their winter attire.Song, 63.] In addition to these he also described different fur, woolen, and feltclothing.Song, 63-70.]
Metallurgy, casting, and forging
In China, the 'five
metals' were gold, silver, copper, iron, and tin, although the term could be extended in general terms to any sort of metal.Song, 257.] He wrote of how gold was held to be the most precious metal of them all, and that it could be obtained in the mountains, panned from river sand, and from underground mining.Song, 236.] He also outlined the different grades of gold and its malleablequalities. To eliminate trace elements of other metals found in gold alloys, Song Yingxing outlined the use of a crucibletechnique.Song, 237.]
Song Yingxing wrote that ancient rulers of early China cast inscriptions of writing onto
bronzetripods since this was a much more durable method of preserving the written record than using the perishable materials found in books and scrolls.Song, 159-160.] He noted that musical and announcing bells of higher quality were made of different copper alloys, while those of lesser quality were made of iron.Song, 160.] He also provided weighted formulas of different metal compositions for certain bells, for example, the casting a large bell in an audience hall or pavilion that required 47,000 catties of copper, 4,000 catties of tin, 50 oz. of gold, and 120 oz. of silver in its composition. In the smelting process, long pits for the liquid metal flow had to be dug, having a drymold construction of lime and mortar that was dried and covered in ox fat and beeswax. Then he noted the following process of pounded earth and charcoalpowder that was screened and mixed into a mud paste that would be gradually spread on the surface of the wax several inches thick.Song 162.] When dried and heated so that the melted fat and wax could flow out entirely by means of apertures at the base, the bell or tripod could be cast in the vacated cavity between the core and the mold. With the individual casting process for bells and tripods, Song Yingxing also described the intricate individual casting processes for making cooking pots and pans,Song, 163.] metal statues, metal barrels of cannons,Song, 165.] metallic mirrors,Song, 165.] and different metallic coins of copper or iron.Song, 165-169.] He described the processes of hammer forging with the initial casting of an anvil, and noted that in the heating process of forging, coalaccounted for 70% of the fuel, charcoal taking the rest at 30%. He also outlined the quench-hardening process of rapid cooling in clear water immediately after iron and steelproducts were forged.Song, 190.] He outlined the different types of knives, axes, hoes,Song, 191.] file tools, awls,Song, 192.] saws, wood chisels,Song, 196.] anchors, and metal needlesSong, 196-197] that could be forged and produced. For the making of the finest swords, he said, they are coated with steel after "a hundred smeltings," but the core of the sword was still made of wrought iron; this was because a sword made entirely of steel would easily break when making hard strikes.
ulfur and saltpetre
There were many
manufacturingprocesses described in the "Tiangong Kaiwu". For example, for roasting iron pyritein converting sulphideto oxidein sulfurused in gunpowder compositions, the book illustrated how ore was piled up with coal briquettes in an earthen furnace with a still-head that sent over sulfur as vaporthat would solidify and crystallize.Needham, Volume 5, Part 7, 126.] For the preparation of saltpetre, Song Yingxing wrote:
Saltpetre (solve-stone) is found both in China and in the lands of neighboring peoples, all have it. In China it is chiefly produced in the north and west. Merchants who sell (saltpetre) in the southern and eastern (parts of the country) without first paying for the official certificate are punished for illegal trading. Natural saltpetre has the same origin as common
salt. Subterranean moisture streams up to the surface, and then in places near water (e.g. the sea), and where the earth is thin, it forms common salt, while in places near the mountains, and where the earth is thick, it forms saltpetre. Because it dissolves immediately in water it is called solve-stone. In places north of the Yangtzeand the Huai rivers, after the mid-Autumn fortnightly period, (people) just have to be at home and sweep the earthen floors on alternate days to collect a little for purifying. Saltpetre is most abundant in three places. That produced in Sichuanis called "chuan xiao"; that which comes from Shanxiis commonly called "yan xiao"; and that found in Shandongis commonly called "tu xiao".Needham, Volume 5, Part 7, 102-103.]
After collecting saltpetre by scraping or sweeping the ground (as also from walls) it is immersed in a tub of water for a night, and impurities floating on the surface are skimmed off. The solution is then put into a pan. After boiling until the solution is sufficiently concentrated, it is transferred to a container, and overnight the saltpetre crystallizes out. The prickly crystals floating on the surface are called "meng xiao" and the longer crystals are "maya xiao" (the amount of these varies with the places where the raw material has been collected). The coarse (powder or crystals) left at the bottom as a residue is called "pu xiao".Needham, Volume 5, Part 7, 103.]
For purification the remaining solution is again boiled, together with a few pieces of
turnip, until the water has evaporated further. This is then poured into a basin and left overnight so that a mess of snow-white (crystals) is formed, and that is called "pen xiao". For making gunpowder this "ya xiao" and "pen xiao" have a similar effect. When saltpetre is used for making gunpowder, if in small quantity it has to be dried on new tiles, and if in large quantity it should be dried in earthenwarevessels. As soon as any moisture has all gone, the saltpetre is ground to a powder, but one should never use an iron pestle in a stone mortar, because any spark accidentally produced could cause an irretrievable catastrophe. One should measure out the amount of saltpetre to be used in a particular gunpowder formula, and then grind it together with (the right amount of) sulfur. Charcoalis only added later. After saltpetre has been dried, it may become moist again if left over a period of time. Hence when used in large cannons it is usually carried separately, and the gunpowder prepared and mixed on the spot.
Many of the gunpowder weapons that Song Yingxing described were similar to those in the Chinese "
Huolongjing" of the earlier 14th century, although there are many noted differences between the two. For example, the "Huolongjing" described a land minethat was triggered by motion of the enemy above, with a pin release that let down falling weights which would use rope and axle to rotate a flintsteel-wheel which in turn sent sparks onto a train of fuses for the mines.Needham, Volume 5, Part 7, 199.] It also described an explosive naval minethat was timed by a fuse and sent down river to an enemy ship.Needham, Volume 5, Part 7, 205.] However, it was the "Tiangong Kaiwu" of Song Yingxing that outlined the use of a rip-cord pulled from ambushers hidden on a nearby shore that would trigger the steel-wheel mechanism in producing sparks for the naval mine placed in the river or lake. Song Yingxing also outlined the different types of metals that were preferable in casting different types of handguns and cannons.Needham, Volume 5, Part 7, 339 F.]
Song Yingxing described a 'match for ten thousand armies' bomb as follows:
(When attacks are made upon) the walls of small cities in remote prefectures; if the available guns are too weak to repulse the enemy, then bombs should be suspended (i.e. dropped) from the battlements; if the situation continues to worsen, then the 'match for ten thousand armies' bomb should be employed...The saltpetre and sulfur in the bomb, on being ignited (explode), and blow many men and horses to pieces in an instant. The method is to use a dried empty clay ball with a small hole for filling, and in it are put the gunpowder, including sulfur and saltpetre, together with 'poison gunpowder' and 'magic gunpowder'. The relative proportion of the three gunpowders can be varied at will. After the fuse has been fitted, the bomb is enclosed in a wooden frame. Alternatively a wooden tub, coated on the inside with the sort of clay used for image-making, can be used. It is absolutely necessary to use the wooden framework or the tub in order to prevent any premature breakage as the missile falls (until the gunpowder explodes). When a city is under attack by an enemy the defenders on the walls light the fuse and throw the bomb down. The force of the explosion spins the bomb round in all directions, but the city walls protect one's own men from its effects on that side, while the enemy's men and horses are not so fortunate. This is the best of weapons for the defense of cities.Needham, Volume 5, Part 7, 187.]
The historian Needham notes that Song Yingxing must not have been much of a military man with extensive knowledge of martial matters, due to his enthusiasm for this archaic type of bomb that had been used by the Chinese since the
Song Dynastyin the 12th century.Needham, Volume 5, Part 7, 166]
Song Yingxing also published two scientific tractates that outline his cosmological views. In these, he discusses the concepts of "
qi" and "xing" (形). Qi has been described in many different ways by Chinese philosophers. To Song, it is a type of all-permeating vapor from which solid objects ("xing") are formed. These solid objects eventually return to the state of "qi", which itself eventually returns to the great void. Some objects, such as the sun and the moon, remain in "qi" form indefinitely, while objects like stones are eternally "xing". Some objects, like water and fire, are intermediary between the two forms.
Tiangong Kaiwu gallery
List of Chinese people
History of science and technology in China
History of gunpowder
History of agriculture
History of ferrous metallurgy
Wang Zhen (official)
*Brook, Timothy. (1998). "The Confusions of Pleasure: Commerce and Culture in Ming China". Berkeley: University of California Press. ISBN 0-520-22154-0
*Needham, Joseph (1986). "Science and Civilization in China: Volume 4, Physics and Physical Technology, Part 2, Mechanical Engineering". Taipei: Caves Books Ltd.
*Needham, Joseph (1986). "Science and Civilization in China: Volume 4, Physics and Physical Technology, Part 3, Civil Engineering and Nautics". Taipei: Caves Books Ltd.
*Needham, Joseph (1986). "Science and Civilization in China: Volume 5, Chemistry and Chemical Technology, Part 7, Military Technology; the Gunpowder Epic". Taipei: Caves Books, Ltd.
*Song, Yingxing, translated with preface by E-Tu Zen Sun and Shiou-Chuan Sun (1966). "T'ien-Kung K'ai-Wu: Chinese Technology in the Seventeenth Century". University Park: Pennsylvania State University Press.
* [http://china-corner.com/article_list.asp?id=616 Song Yingxing at China-corner.com]
* [http://knows.jongo.com/res/article/4510 Song Yingxing at Jongo Knows]
* [http://nausikaa2.mpiwg-berlin.mpg.de/cgi-bin/toc/toc.x.cgi?dir=songy_tiang_zh_1637&step=thumb Tiangong Kaiwu Picture Gallery at ECHO]
* [http://www.rice-paper.com/about/production/songyingxing.html Chapter 13, Papermaking, at rice-paper.com]
* [http://www.orientaldiscovery.com/2006/9-21/2006921164821.html Tiangong Kaiwu at Orientaldiscovery.com]
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