How Chinese science and technology has influenced the West … and vice versa

Han Qi is a professor of Chinese history and culture at Hong Kong Polytechnic University. He has published a large body of work on East-West cultural exchanges in history – in particular the transmission of science between China and Europe. This interview first appeared in SCMP Plus. For other interviews in the Open Questions series, click here.

In what ways has Chinese scientific knowledge influenced Western scientists – especially in fields that are still salient today?

There are people who believe that China only has traditions in technology, but not in science. However, in fields like astronomy, China actually has a very long tradition of astronomical observation dating back more than 2,000 years. China has the longest and most complete records of astronomical observations, including solar and lunar eclipses, and records of stars, meteors and supernovas. Europeans do not have the same level of observational astronomy records, so Chinese records have actually had an influence on the West.

In the 17th and 18th centuries, many people began to study the universe. For a long time both Western and Chinese astronomers were not sure about the changing rule of the values of the obliquity of the ecliptic. In 1722, a French Jesuit missionary named Antoine Gaubil arrived in Beijing and checked over numerous Chinese historical records. After compiling the records, he sent them to France. In the early 19th century, there was a famous French astronomer and mathematician named Pierre-Simon Laplace who read the compiled manuscript and performed some calculations and conducted research based on it. This was a way in which Chinese astronomical observations have had a very direct impact on science up until today.

In the 20th century, contemporary astronomers also searched for new evidence from China’s records. In the 1950s, a Russian astrophysicist met the then vice-president of the Chinese Academy of Sciences. The astrophysicist said they were studying radio astronomy and wanted to know about Chinese records of supernovas. So researchers at the academy went and found the records, and later they ended up writing a paper that was originally published in Chinese and later translated into English. This became one of the most cited astrophysics papers, and was of great importance to the field.

So these ancient Chinese scientific observations have influenced both European and American astronomers. Even now, some people are still using these records to find the earliest star explosions using large telescopes. This is the influence of Chinese astronomical records on both current and past astronomy.

Have Chinese historical records also enabled the development of climate modelling and the study of climate change?

This post was originally published on here

How Chinese science and technology has influenced the West … and vice versa

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