دعوة إلى الإخوة المختصين من أجل النظر في دعاوى القائلين بمركزية الأرض للكون! (تااااني)

Quote: Quote: There is no real center in the universe or in space, only a center relative to something else. When we say the sun is the center of the solar system, what we are saying is simply that the planets orbit the sun. They don't orbit earth. And this is something that you observe with a telescope, not calculate. So the sun is the center of everything that we consider to be part of our solar system, as everything in our solar system can be observed to orbit around the sun directly or indirectly i.e. even the moons of planets. In terms of the universe, there is no center that we can point to. We cannot point in some direction and say x light years in that direction is where the big bang took place. We just don't know. The universe appears to us as a massive sphere but the boundary of the sphere is merely the boundary of what we have been able to observe. The boundary exists because light has a speed limit imposed on it, it doesn't travel instantly. Therefore the boundary of how far into the universe we can see in any direction is dictated by the speed of light the age of the universe.

(عدل بواسطة Abureesh on 01-27-2014, 11:13 AM)