What is the main content of Dust’s Journey?

The main content of "Journey of Dust" is to explore urban architecture and culture around the world, and record various feelings and thoughts during the journey. The protagonist of this book is a bacterium named "Jinger". It tells readers the morphological characteristics, food, clothing, housing, transportation, and living habits of different groups of the fungus family, as well as their impact on human life. It not only allows us to understand Bacteria let us know the importance of hygiene. Opening this book, those sometimes naughty, sometimes arrogant, sometimes sad, sometimes ferocious fungi tell us all its secrets in its poetic language. Author Gao Shiqi: Gao Shiqi (1905-1988), a native of Fuzhou, Fujian, is a famous scientist, science popularization writer and social activist in my country, and a pioneer and founder of science popularization in my country. When he studied in the United States in his early years, he became physically disabled due to a bacterial infection during a scientific experiment. After returning to China, he devoted all his energy to popular science creation and anti-Japanese and national salvation activities. For half a century, he wrote millions of words of scientific sketches, scientific fairy tales and various forms of popular science articles from his wheelchair and hospital bed. He was a mentor and helpful friend to hundreds of millions of teenagers, and was affectionately called "Grandpa Gao Shiqi" by them. ".