The Construction Principle of the Tai Chi Diagram
January 28, 2012 -
The Tai Chi
diagram is a common diagram in ancient Chinese works and medical works, but it's
not known yet how it was made. Key evidence has been found in the data of
astronomical observation in Han Dynasty. It was found that variation
characteristics of the curve of the lengths between days and nights are in
accordance with the S-curve of the Tai Chi
diagram. The theory contained in the Tai Chi
diagram could also be illustrated well by this curve.
In conclusion: the
Tai Chi diagram was made according to the diurnal rhythm in a year, which
was obtained from observation of 24 solar terms in ancient times. As a great
scientific achievement in ancient China, the Tai Chi
diagram has profound influence and should be reevaluated on an academic level.
The full text of this article is published in a Chinese medical
journal Zhonghua Yi
Shi Za Zhi.