My Poor Son-In-Law, Please Die!

[Alternative history + logical passion + unparalleled national warriors + rise of humble families] Prosperity recedes and decay emerges. A son-in-law from a poor family changes the world. He is a top talent in the 21st century. He has a father who is an unparalleled scholar in the country. Under his father's support, he is familiar with "Tiangong Kaiwu" and "Essential Art of Qi Min", and he can grasp the physics in the palm of his hand. But he suddenly traveled to ancient times, a country where men withered and the court found wives, a country where people were cannibalistic and decadent. My wife is as beautiful as a flower, but how dare she be fooled by the breeze on her sleeves? It doesn't matter, Guoshi Wushuang has changed the world! Learn physics well and take over the world! No money? Movable type printing and ancient papermaking! No soldiers? Modern military management! No weapons? Rifled shotguns kill people like crazy! The thunderous means of calling the wind and rain! He instantly became a legend! Until that day the princess found him and wanted to recruit him as her son-in-law. Jiang Chen: Your Majesty! For the people of Da Di! Please die!