Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable. 中英双语版:英文原文完整保留,中文紧随对应单元;术语采用 v20260916 确认表,自动语义审校结果可追溯。
Index to Video/Demonstrations
视频/演示索引
Mechanics
力学
Conservation of angular momentum: holding masses on a rotating stool.
角动量守恒:人在旋转的凳子上持着质量块。
Hoop and cylinder on incline: conservation of energy including rotational kinetic energy.
滑轮和圆柱体在斜面上的能量守恒:包括旋转动能的能量守恒。
Precession of a bicycle wheel supported by one end of axle.
由轴的一端支撑的自行车轮的进动
Swinging balls: conservation of momentum and energy.