Daming: Time Travel in One Month, Waiting Online, Urgent!

A time-travel countdown suddenly appeared in Zhu Yi's mind, telling him that one month later he would time-travel to the eighth year of Hongwu in the Ming Dynasty. He would be the fifth son of Zhu Yuanzhang and be able to carry no more than 1 cubic meter of supplies. He directly sent a short video asking for help, and big guys from all walks of life offered suggestions. Travelers must have three sacred books, all the textbooks from elementary school to middle school, technical drawings of steelmaking, metallurgy, shipbuilding, steam engines, etc. You can memorize as many as you can, and take with you as much as you can. At the same time. Zhu Jiji's notes were synchronized to the Ming Dynasty and obtained by Zhu Yuanzhang. "What kind of rice is corn?" "Is this militia not our Ming?" "Can the gunpowder used in fireworks be used as a weapon of war?" "The issuance of Ming Dynasty treasure banknotes turns out to have a scientific name for finance!" … Looking at the increasingly profound contents in the notes, and then looking at Zhu Yu who was unconscious on the bed, Zhu Yuanzhang sighed silently, "One month, right? OK! Then let's wait for one month!"