List the main scientific and technological achievements of the Han Dynasty.

6-3 Culture and Technology (Han Dynasty)

A scientific and technological achievements (Eastern Han Dynasty)

(1) Zhang Heng

1 achievements

(1) armillary sphere (celestial movement)

(2) Seismograph (measuring earthquake direction)

Two stars. Zhang Hengshan

(B) Cai Lun: Promote the development of papermaking technology education.

Cultural transmission

Second, magical medicine.

(a) Chunyu Kun (Western Han Dynasty): pulse-taking, acupuncture and the creation of a medical record system.

(2) Hua Tuo (Eastern Han Dynasty): Third Surgery with Ma Fei.

(3) Zhang Ji (Eastern Han Dynasty); This book:

Nine Chapters of Mathematics Arithmetic The Eastern Han Dynasty laid the foundation of ancient mathematics in China.