例文
- Due to time dilation, the proper time is the time between two events in a frame of reference where they take place at the same location.
- By contrast, coordinate time is the time between two events as measured by an observer using that observer's own method of assigning a time to an event.
- But at least in special relativity this doesn't work the other way around, and you can't find a frame in which the time between two events is arbitrarily large.