The wind and snow in the north are as sharp as a knife, and engineer Li Zhiyuan's soul penetrates the prisoner. The beginning is a life and death situation. He cut wood into wheels, rolled hemp into ropes, and created a simple pulley block that allowed one person to carry the work of thousands of people. Supervisor Zhao Si wanted to seize the treasure and offer it to the peak, but Li Zhiyuan used a trick to bury the risk of collapse and take advantage of the opportunity to stand up. See how the modern infrastructure maniac uses the laws of physics to influence the destiny of the empire at the foot of the Great Wall.
