• Again, when you learn the relativity, you will find out there's one vector that's staring at you.

    再说一遍,当你学习相对论的时候,你会发现,有一个矢量会始终指向你

    耶鲁公开课 - 基础物理课程节选

  • When we do relativity, we'll be dealing with vectors in space-time and we'll find that different observers disagree on what is this and what is that.

    我们学习相对论的时侯,会涉及到时空矢量的问题,我们会发现观测者们对于观测的结果,有着不同的看法

    耶鲁公开课 - 基础物理课程节选

  • I think it's clear, the position of the object with respect to the ground, this vector is the same as the position of the object with respect to the plane, plus the position of the plane with respect to the ground.

    我觉得很明显,物体相对于地面的位置,这个矢量等于,物体相对于平面的位置矢量,加上物体相对于地面的位置矢量

    耶鲁公开课 - 基础物理课程节选

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