Fantasy: If I Ask You to Preach, How Will You Teach Mathematics, Physics and Chemistry?

Xiao Chen, a master of science and engineering, travels through the fantasy world. As long as he popularizes scientific knowledge, he will be rewarded. The higher his popularity, the more generous the reward will be. So Xiao Chen opened a lecture hall in the sect to teach advanced scientific knowledge. Universal gravity, electromagnetic induction, double-slit interference, calculus, periodic table of elements, genetic engineering... Xiao Chen's teaching style was lively and humorous, which attracted applause from the whole room. He also put theory into practice and invented mobile phones, computers, high-speed trains, airplanes... Driven by high-tech inventions, the entire fantasy world has undergone earth-shaking changes. But in class, there are always some girls doing little tricks, which gives Xiao Chen a headache. "Master, listen carefully and don't send me messages all the time!" "Empress, I will charge you if you continue to live broadcast!" "Junior sister, please listen carefully in class and don't ask me weird questions after class!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.