第1个回答 2015-06-07
time is the collection of all the events outside of the P's future and past light cone except for the future.. This part of the event is neither affected by the P, nor can it affect the P. For example, if the sun is stopped emitting at this moment, it will not affect the earth at this time, because the earth is now the light cone outside of the event (Figure 2.6). We本回答被网友采纳