为了讲清楚狭义相对论的时空观,我们先回顾一下牛顿力学的时空观。 1.牛顿力学的时空观假定有两个观察者0与0′,他们彼此作相对运动,其中0位静止(注)系0xyz中,而0′位于动系0′x′y′z′中,且0′沿x轴相对于0作匀速运动。如两个观察者0与0′都在观察同一事A(如图1-1,两个平行的直角坐标系)。 In order to clarify the space-time outlook of the special theory of relativity, we first review the space-time outlook of Newtonian mechanics. 1. The space-time view of Newtonian mechanics assumes that there are two observers 0 and 0’, and they move relative to each other. Among them, 0 is stationary (Note) is in 0xyz, and 0’ is in the moving system 0’x’y’z’. , and 0’ along the x axis with respect to 0 for uniform motion. If both observers 0 and 0’ are observing the same thing A (Figure 1-1, two parallel rectangular coordinate systems).