In the late summer of 2024, in the mechanical laboratory affiliated to the Chang'an Archaeological Research Institute, he was lying on the precision instrument table, debugging a miniature model used to restore the "hydraulic machine-operated crane" of the Tang Dynasty. As a top mechanical engineering expert in the country and a lover of historical military affairs, Li Hao has an almost obsessive obsession with this type of ancient machinery - especially the Tang Dynasty, an era that combined mechanical craftsmanship with national power to the extreme. Whether it was the exquisite utensils for prisons or the siege equipment of the army, they all contained wisdom that would amaze modern engineers.
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