R-W方法是多刚体系统动力学中的主要方法之一,本文应用此方法进行汽车悬架系统的空间运动分析。文中讨论了多体系统模型的建立及简......

There are three main mechanisms to cause the red shift of spectrum in physics. The first is gravity which is related to ......

The true meaning of the constant in the Robertson-Walker metric is discussed when the scalar factor s the function of ti......

The Doppler formula should be used directly to calculate red shift of Cosmology. The first is gravity, the second is the......