Based on the possibility in that asteroids collide with the earth, the possible changes of earth rotations when impacting happens are discussed in both of fixed-axis and fixed-point rotation. 以小行星有可能碰撞地球为依据,分别在地球作近似定轴转动和定点转动的两种情况下,讨论了在碰撞的时候地球自转运动可能发生的变化。
An Attempt to Teaching Action-force Reaction of the Fixed-axis Rotation of Rigid Bodies in the General Physical Mechanics& A Thought on the Reformations of Mechanics Course 在普通物理力学中讲授刚体定轴转动动力反作用力的尝试&力学教材改革的思考
Discuss on deduction process of work acted by moment from a rigid body in fixed-axis rotation 关于刚体定轴转动中力矩作功的推导商榷