In engineering, connector design requires a trade-off between freedom and stability; in the human body, nature has provided a more elegant solution through millions of years of evolution. The six major joint types are actually perfect biological representations of six classic mechanical structures: ball-and-socket joints correspond to universal joints, flexor-and-valve joints are like hinges, axle joints resemble bearings, and saddle joints are comparable to cam mechanisms. Each structure is optimized for specific movement needs—for example, the saddle joint of the thumb, through hyperboloid engagement, achieves a fine grasping ability unattainable by other species, a key evolutionary breakthrough enabling humans to use tools. The large-scale interactive installation "The Wisdom of Joints" (1950*2060*3500mm) creatively merges engineering and anatomical perspectives. Visitors can not only observe the anatomical details of real joint specimens but also operate magnified mechanical model