Client: Yilin Press
Author: Yi Yang
Date: January 2023
ISBN 9787544792745

Screwdrivers and screws, very weak and very important, seemingly simple but "miraculous" creations, require mathematical and mechanical geniuses to describe the geometry of spirals; It took mechanical genius to come up with a practical application for this unusual shape. It's a great gadget. The author searches for the source and changes of this combination of tools from reference books, ancient books and museums. Following the dialectic of encyclopedias of the past dynasties, he excavates layers of archaeology and links conjecture into exact evidence with primitive legends, highlighting the investigation of knowledge organization. The design of the book revolves around the characteristics of screws, drawing several different shapes of screw patterns, and finally using two screws to bind the book into a volume.

© Nanjing Tenmilliontimes co.
︎ Room 616, Building 3, Hongyang Times Center, No.1 Hongsheng Road, Pukou District, Nanjing City, Jiangsu Province, China