History of science and technology in China

Ancient Chinese scientists and engineers made important discoveries and advances in many areas, including the natural sciences, engineering, medicine, military technology, mathematics, geology, and astronomy.

Some of the earliest inventions included the abacus, the sundial, and the Kongming lantern. The Four Great Inventions – the compass, gunpowder, papermaking, and printing – were very important advances that Europe did not learn about until the end of the Middle Ages, more than 1000 years later. The Tang dynasty was especially known for its innovations.

During the 16th and 17th centuries, the Jesuit China missions helped share Western science and astronomy with China, while also bringing Chinese knowledge back to Europe. In the 19th and 20th centuries, bringing in Western technology was very important for China’s modernization. Much of the early work on the history of science in China was done by Joseph Needham and his Chinese partner, Lu Gwei-djen.

Ancient China

The Warring States period began 2500 years ago, around the time the crossbow was invented. During this time, many new ideas spread across different regions of China, known as the Hundred Schools of Thought. These schools helped guide leaders and rulers.

Ancient Chinese scientists and doctors made important discoveries in medicine, including Traditional Chinese medicine like acupuncture and herbal medicine. They also used tools like shadow clocks and the abacus to watch the sky and record events, such as solar eclipses and comets. One famous book, the Book of Silk, described comets that appeared over many years. The building of the Great Wall of China showed impressive engineering skills under the first Chinese Emperor Qin Shi Huang.

Han dynasty

Main article: Science and technology of the Han dynasty

During the Han dynasty, many smart inventors changed how people understood the world and solved problems. One important person was Zhang Heng, who made the first water-powered armillary sphere, a tool to show the stars and directions. He also created the first instrument to detect earthquakes, which could tell when and where an earthquake happened.

Another clever engineer, Ma Jun, improved machines for weaving silk, designed pumps to bring water to gardens, and even built a mechanical puppet theatre for an emperor. His most amazing invention was the south-pointing chariot, a vehicle that could always point south, using early ideas of gears that we still use in cars today.

The Chinese were also early pioneers in flight, creating the first kites and Kongming lanterns, which were among the first machines to fly in the sky.

Four Great Inventions

Main article: Four Great Inventions

The "Four Great Inventions" are the compass, gunpowder, papermaking, and printing. These important discoveries helped shape both Chinese history and the world. Paper and printing were developed early in China. Printing was first recorded during the Tang dynasty, and Buddhists were among the first to use this new technology.

The compass was a tool that helped guide people during travel and exploration. Gunpowder was discovered by mixing certain materials together, which created powerful reactions. These four inventions had a big effect on how people lived, worked, and traveled around the world.

China's Scientific Revolution

Further information: Science and technology of the Tang dynasty

Early China made many important discoveries in engineering. Some of these included matches, dry docks, a special kind of pump called a double-action piston pump, strong cast iron, a heavy iron plough, the horse collar, a tool called a multi-tube seed drill, the wheelbarrow, the suspension bridge, the parachute, using natural gas as fuel, making detailed raised-relief maps, the propeller, a type of water control called a sluice gate, and the pound lock. The Tang dynasty (AD 618–907) and Song dynasty (AD 960–1279) were especially rich in new ideas and inventions.

In the 7th century, China developed a new way to make books called printing. They used wooden blocks carved by hand to print pages. The Diamond Sutra from the 9th century is the oldest printed document we know about. Later, they tried using small, movable pieces of type, but this method was not kept because it was hard with so many characters. It would be many years before this idea was used well again in Europe.

The Song dynasty brought new stability and change to China. The first Song Emperor encouraged learning and new ideas. This helped science, trade, and money grow. In 1080, China made over five billion coins, and in 1023, they made the first paper money.

Famous inventors and scientists lived during the Song dynasty. Shen Kuo wrote about many discoveries in his book Dream Pool Essays. He talked about using a drydock to fix boats, the magnetic compass, and how the Earth's surface changes over time.

Su Song built an amazing Astronomical Clock Tower in Kaifeng by 1088 AD. This clock used water wheels and other parts to show the time and move a large model of the sky overhead.

Chinese astronomers were the first to write about seeing bright explosions of stars, called supernovas. They wrote about three of these explosions during the Song dynasty.

During the Song dynasty, people also studied old things, like ancient tools and writings. They tried to learn from the past and understand history better.

Shen Kuo also studied the Earth and weather. He thought that land slowly changed shape over time due to water and wind. He noticed that some places that were once near the sea were now far inland.

In chemistry, Chinese medicine used different plants and minerals to make medicines. Over time, people mixed these to make new kinds of medicines and even tried to make special mixtures that could help people live longer.

During the time of the Yuan dynasty, new ways of making money appeared, like mass-producing paper banknotes. There were also many meetings between people from Europe and the Mongols, which helped share ideas and technology.

Chinese scientists made many guesses that match what we know today. For example, they thought that rainbows happen when sunlight meets moisture in the air. They also understood that a lunar eclipse happens when the Earth comes between the Sun and the Moon.

There were big steps forward in traditional medicine. Books described many different medicines made from plants, animals, and minerals.

Su Song is also famous for his work on clocks. He wrote about a special clock tower that used water power and many moving parts to show the time and move models of the sky.

Shen Kuo also described the first magnetic compass and talked about how light can bend, called atmospheric refraction. He also explained how the Moon shines by reflecting sunlight.

In metallurgy, or working with metals, Chinese people found new ways to make stronger iron and steel. They also learned to use coal instead of wood to make metals, which helped save forests.

In mathematics, Chinese teachers introduced the symbol for zero into their math. They also studied patterns in numbers, like Pascal's triangle.

Chinese people mixed different materials to make new things, like special paints and protective coatings. These mixtures came from old ideas but were improved over time.

The use of gunpowder changed battles forever. Early guns called fire lances appeared, and later, people made bombs, cannons, rockets, and other new weapons.

Jesuit activity in China

During the 16th and 17th centuries, Jesuit missionaries brought Western science and astronomy to China. They were highly valued in Chinese courts for their knowledge of astronomy, making calendars, mathematics, water systems, and geography. The Jesuits helped translate Western books on math and astronomy into Chinese, which sparked interest among Chinese scholars. They also made detailed observations of the stars and created modern maps of China.

In return, the Jesuits shared Chinese knowledge with Europe. They translated the works of the ancient Chinese thinker Confucius into European languages. One Jesuit, Matteo Ricci, began sharing Confucius’s ideas, and another published them in Latin in 1687. These translations influenced European thinkers during a time called the Enlightenment. Some European philosophers even compared Confucius to wise leaders in their own cultures.

Scientific and technological stagnation

Further information: Great Divergence

Historians have wondered why China did not develop a Scientific Revolution like Europe did and why its technology fell behind. Many ideas have been suggested, from cultural to political and economic reasons. Some believe the Chinese political system did not support scientific progress. Others think that cultural beliefs made it hard for Chinese thinkers to see natural laws in the same way Europeans did.

More recent ideas focus on economic factors. Some say China had enough workers and good farming, so there was less need for new machines. Events like wars and political changes also kept China from advancing during important times. Some think Europe’s access to resources from other parts of the world helped it grow faster. Others point to Europe’s many small countries competing with each other, which may have pushed them to adopt new ideas more quickly.

The Republic of China (1912–1949)

The Republic of China (1912–1949) brought modern science to China. Many Chinese students went to study in Japan, Europe, and the US. When they returned, they started schools and universities, helping science grow quickly. Important leaders like Cai Yuanpei, Hu Shih, Weng Wenhao, Ding Wenjiang, and Fu Ssu-nien were part of this change. When the Communist Party took control in 1949, some scientists and schools moved to Taiwan, including the central science academy, Academia Sinica.

People in the May Fourth Movement in 1919 believed that science and democracy could help China grow stronger. This idea became very popular during this time.

People's Republic of China

Main article: History of science and technology in the People's Republic of China

See also: Science and technology in the People's Republic of China

After 1949, China reorganized its science system, inspired by the Soviet Union. Despite challenges like famine and political upheaval, China achieved major successes in nuclear weapons and launching satellites.

China started its first big computing plan in 1956, building its first vacuum-tube computer by 1958. Later, China developed its own electronics and computing technology. In 1964, China built a major industrial area for safety, spreading factories and resources across the country. That same year, China created its first large digital computer and tested its first nuclear weapon. By the 1970s, China was making advanced computers and focusing on science as key to growth. In recent years, China has become a world leader in many areas, including space travel, supercomputing, and artificial intelligence. The country now publishes more scientific studies than any other nation and aims to stay at the forefront of global science and technology.