A Chinese father-and-son duo established a home laboratory to create miniature models of China’s significant national strategic hardware, captivating many online with their skill and passion. Duan Yanjuan, a 13-year-old second-year junior secondary school student in Shanghai, has already replicated turbojet engines, pulse detonation engines, and an electromagnetic aircraft launch system, with assistance from his father, Duan Changzhi. The inspiration for replicating the electromagnetic aircraft...