Time and Space
Einstein’s postulates lead to the conclusion that all previous ideas of time and space must change
Time and space must be defined by operational definitions
Notice how far reaching are the consequences of this simple, direct logic:
- If the speed of light is constant for all observers:
- Then we must give up the concept of “simultaneity” at different points in space -- the order in which things happen can be different for different for different observers!
- Nothing can travel faster than light
- There be one one such maximum speed
What about space??? (We will return to time later.)