Quote:
|
Originally Posted by Sam5
We don’ t know of any “center” because we can’t see any “outer limits”. We are somewhere inside the universe, and it’s really big. In order to tell in which direction is the center, if there is one, we must be able to see the outer edge or “boundary”, if there is one.
|
Wrong. Have a look at the pretty pic of the fireworks. Place yourself on one of those flaming balls. Notice how the other flaming balls are moving away from you at different rates depending on where they are in relation to you. The ones parallel to your direction of motion (in front of you and behind you) are moving away from you faster than the ones perpendicular to your motion.
By viewing a small piece of that firework, you can figure out the direction of the center.