God of Science and Technology in the Late Ming Dynasty

Zhang Tianyou, who studied philosophy, traveled back in time to the troubled times of the late Ming Dynasty and was crying without tears. Various majors such as mechanics, metallurgy, manufacturing, and history were not good enough for time travel. He only brought a flashlight with him and no system to support him. How could he survive? Fortunately, he was born shameless, used the magic of deception, and with the help of ancient people, started the road of science and technology of pretending to be gods and ghosts... Different historical time travel stories, if there are any similarities, it is purely plagiarism from this book.