Siheyuan Counterattacks from the Sign-In System

This book has little enthusiasm: time travel to 1960, he became Yi Zhonghai's adopted son, and he has a daily sign-in system. From photographic memory to mechanical proficiency, from shortage of food and meat to future drawings... Lin Tian originally wanted to live a low-key life, study with peace of mind, and slowly change his life with advanced knowledge. However, the courtyard is never peaceful. The Jia family's calculations, Xu Damao's insidiousness, the second uncle's official addiction, the third uncle's stinginess... Facing the endless "animal" neighbors, he smiled calmly. What you are fighting for is petty profits, while what I am seeking is the rise of a great power. What you think is selfishness, but what I offer is a strategy that benefits the country. While others were still racking their brains for half a pound of meat tickets, the drawings of the "energy-saving wind stove" he submitted have been sent to the streets. When the general meeting of the college pointed fingers at him, the special recruitment notice from the university and the visit of the engineer made everyone shut up. From a genius boy at Red Star Elementary School to the core of a secret project team at an institution of higher learning. From improving a machine tool to participating in the blueprint design of a powerful weapon. Lin Tian is fulfilling the gifts of the sign-in system step by step, and quietly pushing the gears of an era. Yi Zhonghai burst into tears: "This is my son!" Everyone in the courtyard was stunned: "Who is he?" This is the story of a young man who, starting from a courtyard house, uses technology and wisdom to heal his regrets, protect his loved ones, and finally spread his light to a wider world.