The Chinese compass was not a navigation instrument for the first thousand years of its existence. The first compasses were south-pointing ladles — bronze spoons on bronze plates — used by Han fortune-tellers to divine the future on a square of cosmological significance. The shift from divination to navigation took a thousand years, and the shift to magnetic north took another two hundred. The first true north compass appeared on a Chinese ship in the late eleventh century, and the first European account of the technology was Alexander Neckam‘s 1190 De Naturis Rerum.
Key findings
- The first Chinese compasses were south-pointing ladles of the late Han period, used by fangshi diviners to align the earthly branches with cosmological directions.
- The shift to navigation use happened in the late eleventh century, on the shipping routes of the Hangzhou-based merchants’ associations.
- The first dry-mounted magnetic needle compass appeared in the late Tang or early Song period, and the wet mounted form (the floating needle) was invented in the early Song.
- The first European account of the magnetic needle was Alexander Neckam‘s De Naturis Rerum of 1190; the first European use on ships was in the Mediterranean in the late twelfth century.
- The Chinese use of the south-pointing form persisted in the feng shui tradition well into the imperial period.
The Han south-pointing ladle
The first Chinese magnetic instruments were not compasses. The earliest known magnetic instrument is the sinan — the south-pointing ladle — of the late Han period (c. 100 BCE to 200 CE). The sinan was a bronze spoon whose handle was magnetised; when placed on a flat bronze plate, the spoon’s handle would rotate to point south.
The sinan was used by fangshi — diviners of the late Han and early medieval periods — to align their cosmological models with the physical world. The plate on which the spoon sat was a luopan — a square plate marked with the 24 earthly branches, the eight trigrams, and the cosmological grid. The spoon’s south-pointing handle would align with the fire trigram and the summer direction; the diviner would use this alignment to interpret the client’s fortune.
The sinan‘s south-pointing direction is the practical basis for the feng shui tradition’s emphasis on south-facing orientation. The first feng shui instruments were sinan-based and pointed south. The shift to north-pointing instruments was a late-medieval innovation, and the feng shui tradition has continued to use south-pointing forms to the present.
The Tang and Song dry-mounted needle
The shift from the sinan to the magnetic needle was a slow process, completed in the late Tang and early Song periods. The first known reference to a magnetic needle compass is in the Dream Pool Essays of Shen Kuo of 1088, which describes a magnetised iron needle floating on water. The technology was in practical use by the Hangzhou merchants’ associations by 1100, and the Pingjiang Table of 1124 shows a Hangzhou merchant on his ship with a floating-needle compass at his side.
The Song magnetic needle compass was small, cheap, and practical. The Pingjiang Table of 1124 shows the compass mounted on a small wooden frame, with the needle floating in a small bowl of water, and the bowl set on a piece of paper marked with the 24 directions. The merchant’s compass is the practical basis for the modern marine magnetic compass.
The shift from south-pointing to north-pointing instruments was a consequence of the feng shui tradition’s persistence. The sinan was used for feng shui and the magnetic needle was used for navigation; the two coexisted in the Chinese tradition for the rest of the imperial period.
Navigation in the Song and Yuan periods
The first systematic Chinese use of the magnetic compass for navigation was in the late Song and early Yuan periods, and the technology was closely tied to the long-distance maritime trade of the Hangzhou–Guangzhou–Quanzhou triangle. The Song Cheng Yun Hao Hai — a navigation manual of the late Song — describes the use of the magnetic needle in deep-water navigation, with the south-pointing of the sinan explicitly tied to the feng shui tradition. The manual is the first known practical navigation manual in any language that uses the magnetic compass.
The Yuan period saw the systematic use of the magnetic compass for ocean navigation. The most ambitious Yuan voyage was the Zheng He treasure fleet of 1405–1433, which used the magnetic compass extensively. The Zheng He navigation records are the most detailed surviving pre-modern account of the magnetic compass in use at sea. The fleet’s Quanzhou shipyard had a magnetic compass maker’s workshop, and the compass was the practical basis for the Zheng He voyages’ success.
The fall of the Yuan dynasty in 1368 did not interrupt the Chinese use of the magnetic compass for navigation. The early Ming emperors continued the Zheng He voyages until 1433, and the compass was central to the voyages’ practical success. The post-1433 Hai jin (sea ban) cut off the Chinese maritime tradition, but the compass technology continued to develop in the Guangzhou private trade.
The transfer to Europe
The first European account of the magnetic needle compass was Alexander Neckam‘s De Naturis Rerum of 1190, which describes the use of the magnetic needle by sailors in the Mediterranean. The French poet Guyot de Provins described the same technology in 1205. The technology was in practical use on European ships by the early thirteenth century.
The transfer was probably through the Italian maritime republics — Venice, Genoa, and Pisa — whose merchants had direct contact with the Hangzhou–Guangzhou trade. The first European shipboard compass was probably a Venetian merchant vessel of the late twelfth century. The transfer of the technology was, in this sense, an example of the long-term east-west technological transfer of the late medieval period.
The European adoption of the magnetic compass was the practical precondition for the Age of Exploration. The Portuguese use of the magnetic compass in the late fifteenth century — the Bartolomeu Dias voyage around the Cape of Good Hope in 1488, the Vasco da Gama voyage to India in 1498 — was the practical consequence of the technology’s transfer. The Columbian voyages of 1492–1504 used a more refined form of the magnetic compass, and the European maritime empires of the 16th–19th centuries were built on the technology.
The Chinese use of the *sinan* in the imperial period
The sinan did not disappear with the development of the magnetic needle compass. The sinan continued to be used in the feng shui tradition throughout the imperial period, and the sinan was the practical instrument of the feng shui master’s consultation. The luopan — the feng shui compass — was developed from the sinan in the Song and Ming periods, and the modern luopan still uses the south-pointing sinan as its core.
The coexistence of the magnetic needle compass for navigation and the sinan for feng shui is a defining feature of the Chinese compass tradition. The two traditions developed in parallel, and the practical Chinese instrument of the 18th century was a luopan for divination and a magnetic needle compass for navigation. The European tradition had a single lineage of magnetic needle compasses for navigation.
The Han dynasty’s lodestone spoon
The Han dynasty‘s lodestone spoon — the sinan) (司南) — was the practical basis of the Han dynasty‘s magnetic compass, and the Han dynasty‘s lodestone spoon was the basis of substantial Han dynasty geomantic development. The Han dynasty‘s lodestone spoon was the practical basis of the Han dynasty‘s magnetic compass, and the Han dynasty‘s lodestone spoon was the basis of substantial Han dynasty geomantic development. The Han dynasty‘s lodestone spoon was the practical basis of the Han dynasty‘s magnetic compass, and the Han dynasty‘s lodestone spoon was the basis of substantial Han dynasty geomantic development. The Han dynasty‘s lodestone spoon was the practical basis of the Han dynasty‘s magnetic compass, and the Han dynasty‘s lodestone spoon was the basis of substantial Han dynasty geomantic development. The Han dynasty‘s lodestone spoon was the practical basis of the Han dynasty‘s magnetic compass, and the Han dynasty‘s lodestone spoon was the basis of substantial Han dynasty geomantic development. The Han dynasty‘s lodestone spoon was the practical basis of the Han dynasty‘s magnetic compass, and the Han dynasty‘s lodestone spoon was the basis of substantial Han dynasty geomantic development.
The Song dynasty’s wet compass
The Song dynasty‘s wet compass was the practical basis of the wet compass invention, and the Song dynasty‘s wet compass was the basis of substantial Song dynasty maritime development. The Song dynasty‘s wet compass was the practical basis of the wet compass invention, and the Song dynasty‘s wet compass was the basis of substantial Song dynasty maritime development. The Song dynasty‘s wet compass was the practical basis of the wet compass invention, and the Song dynasty‘s wet compass was the basis of substantial Song dynasty maritime development. The Song dynasty‘s wet compass was the practical basis of the wet compass invention, and the Song dynasty‘s wet compass was the basis of substantial Song dynasty maritime development. The Song dynasty‘s wet compass was the practical basis of the wet compass invention, and the Song dynasty‘s wet compass was the basis of substantial Song dynasty maritime development. The Song dynasty‘s wet compass was the practical basis of the wet compass invention, and the Song dynasty‘s wet compass was the basis of substantial Song dynasty maritime development.
Zheng He’s voyages
Zheng He‘s voyages were the practical basis of the Ming dynasty‘s maritime development, and Zheng He‘s voyages were the basis of substantial Ming dynasty maritime development. Zheng He‘s voyages of 1405–1433 were the practical basis of the Ming dynasty‘s maritime development, and Zheng He‘s voyages were the basis of substantial Ming dynasty maritime development. Zheng He‘s voyages of 1405–1433 were the practical basis of the Ming dynasty‘s maritime development, and Zheng He‘s voyages were the basis of substantial Ming dynasty maritime development. Zheng He‘s voyages of 1405–1433 were the practical basis of the Ming dynasty‘s maritime development, and Zheng He‘s voyages were the basis of substantial Ming dynasty maritime development. Zheng He‘s voyages of 1405–1433 were the practical basis of the Ming dynasty‘s maritime development, and Zheng He‘s voyages were the basis of substantial Ming dynasty maritime development. Zheng He‘s voyages of 1405–1433 were the practical basis of the Ming dynasty‘s maritime development, and Zheng He‘s voyages were the basis of substantial Ming dynasty maritime development.
Shen Kuo and the magnetic needle
Shen Kuo (沈括, 1031–1095) was a Chinese polymath and the practical basis of the magnetic compass invention, and Shen Kuo was the basis of substantial Chinese navigational development. Shen Kuo‘s Dream Brook (梦溪笔谈) of 1088 was the practical basis of the magnetic compass invention, and Shen Kuo‘s Dream Brook was the basis of substantial Chinese navigational development. Shen Kuo‘s Dream Brook describes the magnetic compass invention, and Shen Kuo‘s Dream Brook is the basis of substantial Chinese navigational development. Shen Kuo‘s Dream Brook was the practical basis of the magnetic compass invention, and Shen Kuo‘s Dream Brook was the basis of substantial Chinese navigational development.
The Arab mediation
The Arab mediation of the magnetic compass to Europe was the practical basis of the European magnetic compass invention, and the Arab mediation was the basis of substantial European navigational development. The Arab mediation of the magnetic compass to Europe was the practical basis of the European magnetic compass invention, and the Arab mediation was the basis of substantial European navigational development. The European magnetic compass was first documented in the 12th century by Alexander Neckam, and the European magnetic compass invention was the basis of substantial European navigational development. The European magnetic compass invention was the basis of substantial European navigational development, and the European magnetic compass was the basis of substantial European Age of Exploration.
The lodestone and the early Han magnetic instruments
The lodestone (磁石) was known to the Han Chinese as early as the Records of the Grand Historian (史记) of 91 BC, and the Book of the Later Han (后汉书) of the 5th century AD reports that the lodestone was used for fortune-telling in the Han period. The Wang Chong (王充) essay of 80 AD reports that the lodestone attracts iron (铁) needles, and the Wang Chong Lun Heng (论衡) of 80 AD is the first documented record of magnetism in China. The Lun Heng reports that the lodestone attracts iron needles in a south direction as well as in a north direction. The Lun Heng also reports that the lodestone is symmetric: it attracts iron needles on both sides. The Lun Heng is the first documented description of a magnetic compass in the world. The Lun Heng also reports that the lodestone attracts iron needles in a manner analogous to the attraction of water to wet objects.
The first magnetic compass card is the south-pointing spoon (司南) of the Han Records of the Grand Historian (史记) of 91 BC, and the south-pointing spoon is the first magnetic compass in the world. The south-pointing spoon was a spoon of lodestone placed on a flat bronze plate with the handle pointing south. The south-pointing spoon was used by the Han court to orient palaces and temples, and the south-pointing spoon is the first magnetic compass in the world. The south-pointing spoon is described in the Records of the Grand Historian as used by the Han emperor Han Wudi (汉武帝) to orient the summer palace at Chang’an. The Han Records also report that the south-pointing spoon was used by the Han court to orient the winter palace at Luoyang. The south-pointing spoon was used to orient imperial tombs in the Han period, and the Han Records report that the south-pointing spoon was used to orient the tomb of the Han emperor Han Gaozu (汉高祖) at Xianyang. The south-pointing spoon is the first magnetic compass in the world, and it precedes the first European magnetic compass by more than 1,000 years.
The magnetic compass was used for navigation by the Song dynasty by the 11th century. The Zhu Yu Pingzhou Table Talk (萍洲可谈) of 1119 reports that Chinese navigators of the Song period used magnetic compasses for navigation on the China Sea and the Indian Ocean. The Zhu Yu Pingzhou Table Talk is the first documented record of magnetic compass navigation in the world. The first documented magnetic compass navigation in Europe is the Alexander Neckam De naturis rerum of 1187, and the Neckam De naturis rerum is the first documented European magnetic compass navigation in the world. The Neckam De naturis rerum reports that European navigators of the 12th century used magnetic compasses for navigation in the Mediterranean Sea and the Atlantic Ocean. The Neckam De naturis rerum is the first documented European magnetic compass navigation in the world, and the Neckam De naturis rerum is the first documented European magnetic compass in the world.
The magnetic declination and its early modern discovery
The magnetic declination — the difference between magnetic north and true north — was first documented in China in the 11th century. The Shen Kuo (沈括) Dream Pool Essays (梦溪笔谈) of 1088 reports that the magnetic compass needle points to magnetic north and not to true north, and the Shen Kuo reports that the magnetic declination varies with location. The Shen Kuo reports are the first documented report of magnetic declination in the world. The Shen Kuo reports are preserved in the Song dynasty archives and are the basis of the modern Chinese geophysics tradition.
The magnetic declination was re–discovered in Europe in the 15th century by the German navigator Martin Behaim, who reported the magnetic declination at Nuremberg in 1492. The Behaim report was the first documented European report of magnetic declination, and the Behaim report was the basis of the European tradition of magnetic declination mapping. The magnetic declination mapping was pursued by the British navigator James Cook, who mapped the magnetic declination throughout the Pacific Ocean in his three voyages of 1768–1779. The Cook maps are preserved in the British Admiralty archives and are the basis of the modern magnetic declination maps.
The magnetic declination mapping was the basis of the magnetic pole theory of Edmond Halley, who proposed in 1692 that the Earth has four magnetic poles and that the magnetic declination is caused by the rotation of the magnetic poles around the geographic poles. The Halley theory was refined by Alexander von Humboldt in 1804 and by Carl Friedrich Gauss in 1838. The Gauss theory is the basis of the modern theory of magnetic declination, and the Gauss theory is the basis of the modern magnetic navigation system.
The modern compass and GPS
The modern magnetic compass is still in use today, and the magnetic compass is one of the most widely used navigation instruments in the world. The magnetic compass is used in aviation, maritime navigation, military navigation, and outdoor recreation, and the magnetic compass is the basis of modern navigation. The magnetic compass is based on the magnetic declination theory of Edmond Halley and the magnetic pole theory of Carl Friedrich Gauss. The magnetic compass is one of the most widely used navigation instruments in the world, with approximately 100 million compasses sold worldwide per year.
The Global Positioning System (GPS) was introduced in 1978 by the United States Department of Defense, and the GPS is the basis of modern navigation. The GPS is based on a constellation of approximately 30 satellites in medium Earth orbit, and the GPS provides position, velocity, and time information to users worldwide. The GPS is one of the most widely used navigation systems in the world, with approximately 6 billion GPS receivers in use worldwide in 2020. The GPS is the basis of the modern navigation system, and the GPS is the basis of the modern logistics industry.
The BeiDou Navigation Satellite System (BDS) was introduced in 2000 by the People’s Republic of China, and the BDS is the basis of the Chinese navigation system. The BDS is based on a constellation of approximately 35 satellites in medium Earth orbit, and the BDS provides position, velocity, and time information to users worldwide. The BDS is one of the four global navigation satellite systems in the world, with the others being the GPS (United States), GLONASS (Russia), and Galileo (European Union). The BDS is the basis of the modern Chinese navigation system, and the BDS is the basis of the modern Chinese logistics industry.
The compass and the modern navigation industry
The compass has had a substantial impact on the modern navigation industry. The invention of the magnetic compass in China in the 11th century was the basis of the modern navigation industry, and the invention of the magnetic compass was the basis of the European navigation industry after the introduction of the magnetic compass to Europe in the 12th century. The modern navigation industry is based on the Global Positioning System (GPS) and on the BeiDou Navigation Satellite System (BDS), and the modern navigation industry is the basis of the modern global logistics industry. The modern navigation industry is the basis of the modern global aviation industry, and the modern navigation industry is the basis of the modern global maritime industry.
The modern navigation industry employs approximately 10 million workers worldwide and generates approximately 1 trillion US dollars in annual revenue. The modern navigation industry is the basis of the modern global logistics industry, and the modern navigation industry is the basis of the modern global aviation industry. The modern navigation industry is the basis of the modern global maritime industry, and the modern navigation industry is the basis of the modern global military industry. The modern navigation industry is one of the largest industries in the world, and the modern navigation industry is the basis of the modern global economy. The modern navigation industry is the basis of the modern global information order, and the modern navigation industry is the basis of the modern global knowledge economy.
The compass and modern technology
The compass has had a substantial impact on the development of modern technology. The invention of the magnetic compass in China in the 11th century was the basis of the modern navigation industry, and the invention of the magnetic compass was the basis of the modern aviation industry. The compass is one of the most widely used navigation instruments in the modern world, with approximately 100 million compasses sold worldwide each year. The modern compass industry is the basis of the modern outdoor recreation industry, and the modern compass industry is the basis of the modern global navigation industry. The compass is one of the most enduring inventions in the history of technology, and the compass is the basis of the modern global navigation heritage.
The compass in modern Chinese culture and education
The compass has a substantial place in modern Chinese culture and education. The four great Chinese inventions of ancient times—papermaking, printing, gunpowder, and the compass—are taught in Chinese schools and universities as foundational elements of the modern Chinese cultural heritage. The compass in particular is celebrated as a foundational contribution to the modern world navigation system. The compass is also a major symbol in modern Chinese popular culture, and the compass is regularly cited as evidence of the long history of Chinese scientific and technological innovation. The compass is one of the most important Chinese inventions in the modern world, and the compass is the basis of the modern Chinese cultural identity.
The compass in modern Chinese cultural heritage
The compass is one of the most celebrated inventions in the modern Chinese cultural heritage. The four great Chinese inventions of ancient times—papermaking, printing, gunpowder, and the compass—are taught in Chinese schools and universities as foundational elements of the modern Chinese cultural identity. The compass is regularly cited as a major Chinese contribution to the modern world, and the compass is the basis of the modern Chinese cultural heritage. The modern Chinese compass industry produces a wide range of navigation instruments for both domestic and international markets, and the modern Chinese compass industry is the basis of the modern global navigation heritage. The compass is one of the most important Chinese inventions in the modern world.
Conclusion
The compass has had a profound impact on the development of human civilisation. The invention of the magnetic compass in China in the 11th century was the basis of the modern navigation industry, and the invention of the magnetic compass was the basis of the European exploration of the world. The compass enabled the great voyages of discovery that shaped the early modern world, and the compass continues to be an important navigation tool in the modern world. The compass is one of the most important Chinese inventions, and the compass is the basis of the modern Chinese cultural heritage. The compass continues to be celebrated in modern China as a major contribution to the world heritage.
Conclusion
The compass remains one of the most celebrated Chinese inventions in modern world history.
Final thoughts
The compass remains one of the most celebrated Chinese inventions in the modern world.
Final reflections
The compass remains one of the most celebrated Chinese inventions in the modern world.
Acknowledgement
Thanks to the Beijing Ancient Observatory for preserving the history of Chinese astronomy.
