Aside from many original inventions, the Chinese were also early original pioneers in the discovery of natural phenomena which can be found in the human body, the environment of the world, and the immediate Solar System.
They also discovered many concepts in mathematics.
The list below contains discoveries which found their origins in China.
Han dynasty
(202 BC – 220 AD) paintings on tile of Chinese guardian spirits representing 11 pm to 1 am (left) and 5 am to 7 am (right); the ancient Chinese, although discussing it in supernatural terms, acknowledged
circadian rhythm
within the human body
Aware of underground minerals associated with certain plants by at least the 5th century BC, the Chinese extracted trace elements of
copper
from
Oxalis corniculata
, pictured here, as written in the 1421 text
Precious Secrets of the Realm of the King of Xin
.
With the description in Han Ying's written work of 135 BC (
Han dynasty
), the Chinese were the first to observe that
snowflakes
had a
hexagonal
structure.
Oiled garments left in the tomb of
Emperor Zhenzong of Song
(r. 997–1022), pictured here in this portrait, caught fire seemingly at random, a case which a 13th-century author related back to the
spontaneous combustion
described by
Zhang Hua
(232–300) around 290 AD