Scott No: 3500-3
Serial number: 2006-11
Values in set: 4
Date of issue: May 13, 2006
Denomination: 320 fen
Designer: Li Zhihong
Engraver: Xu Yongcai, Ma Rong, Kong Weiyun, Liu Yimin
Size of stamps: 40*30 mm
Perforation: 12
Sheet composition: 20
Printing process: Engraving and offset
Printing House: Henan Postage Stamp Printing Works

This stamp set was issued on May 13, 2006. It consists of four stamps with a total face value of 3.20 yuan, designed by Li Zhihong, with Chen Yisi serving as the responsible editor, and printed by Henan Post and Telecommunications Printing Factory using offset printing.

Modern Chinese Scientists is a commemorative stamp series. The fourth group features four pioneering scientists who made outstanding contributions in the fields of geology, architecture, aerospace, and medicine in China. It pays tribute to the spirit of selfless dedication and quiet perseverance of the older generation of scientists, commemorating their enduring contributions to the nation's science and education.

Stamp Designs and Historical Background

Liang Xi

A founder of modern forestry in China, he dedicated his life to forestry development and ecological conservation, promoting the establishment of China's forestry science system.

Mao Yisheng

A renowned bridge engineering expert, he led the design and construction of the Qiantang River Bridge, and was a pioneer of modern bridge engineering in China.

Yan Jici

An outstanding physicist, he made significant contributions to the field of optics, pioneering modern optical science in China, and devoted his life to scientific research and education.

Zhou Peiyuan

A physicist and educator, he made notable contributions to fluid mechanics and general relativity, and played a key role in advancing China's basic sciences.

Artistic and Design Features

The four stamps share a uniform vertical format, with realistic and dignified portraits. The design is clean and elegant, with the offset printing providing soft and delicate layers. The simple and steady tones reflect the rigorous and scholarly character of these scientists.

This stamp set is a commemorative issue on the theme of scientific and educational figures, suitable for thematic collections on distinguished Chinese figures and scientists.