foreword I first heard the title of this book on the message board of Mr. Zhu Bangfu's website. I didn't get a glimpse of the book until I got the scanned copy of the original book in December last year.After reading the catalog, I turned directly to the most interesting chapter 11. After reading it carefully, I realized that this is a rare popular science book and should be introduced to more people.However, the scanned copy has the shortcomings of unclear text and too large file size, which is not conducive to the dissemination of content on the Internet, so it is determined to convert it into a text web page format.It is hoped that after the popularization of the telegram book, the content of this book can increase the scientific knowledge of the world.

Aren, January 21, 2005 A.D. For information about the original book, please refer to the website of Zhu Bangfu Studio.