Su Zhe, a Ph. D. In materials science, was electrocuted to death while staying up late to write a thesis. When he woke up, he found that he was tied up with five flowers and was about to be sunk into the Weishui River by Xu Fu.
After escaping from death, he faced Qin Shihuang, who was seeking immortality, Xu Fu, who was eyeing him, and all the civil and military officials in the dynasty who were waiting to see his joke.
He doesn't know how to make alchemy or alchemy. But he understands nitrate, disulfide, and charcoal, the principle of the curved shaft plow, the formula of cement, and stirrups and gears.
"Your Majesty, I don't know how to live forever. But I know how to save the people from starving to death and the soldiers from dying in battle."
From the alchemist who was drowned in the Yangtze River to the founder of the Gewuyuan; from the explosion of gunpowder in the Xianyang Palace to the secret edict in the Sand Dune Incident; from three years of suffering in the heavenly prison to more than two hundred people risking their lives to rob the prison -
This is a story about "something useful".
Those things can save one person or a group of people. It can change a war, and it can also change an era.
Before his death, the First Emperor said to him: "I believe in you."
This letter lasts a lifetime.
