The Start of the Tang Dynasty Shocked Li Shimin

In the early Tang Dynasty, in the second year of Zhenguan, Li Sheng traveled through time and became a small eunuch during the Tang Dynasty. At this time, Li Shimin, Du Ruhui and others who were attacked by Turks unexpectedly came to the village. What surprised Li Shimin and others even more was that the things in this little eunuch's home were very unusual! "Li Sheng, what is a chemical reaction? What is an endothermic reaction?" Li Sheng: "I..."