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One quick analogy to exnapd on this (and I hate the logical traps of analogies, but whatever) Imagine you and a friend are canoeing on a river. Your friend is ahead of you by some yards, and he begins to notice that the river is speeding up. You notice that he is getting away from you faster and faster. Suddenly you see him disappear up ahead, and shortly after you realize that you are about to go over a waterfall. Unable to do anything about it, you fly right over the edge and go directly into free-fall.You see your friend below, getting further from you as he falls faster than you, since he went over first. You look up, only to see another canoe falling as well. This other canoe is also getting farther from you, at an accelerated rate, because, even though it's going over the edge as well, it hasn't yet gone into free-fall. So, the three of you are continually separating. To bring this to an astronomical scale, imagine that the further you fell, the more quickly you accelerated (and thusly, the more quickly you separate from your friend and the other canoe), because you are getting closer to the inflowing mass, increasing your gravity and rate of fall. Since you can't observe space itself directly, all you can see are the other canoes galaxies getting further apart. Since space and time stretch from less dense areas into more dense areas, it's impossible to tell that you and the other galaxies are actually falling to the same place.
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(VISITOR) AUTHOR'S NAME
Sengul
MESSAGE TIMESTAMP
19 december 2014, 09:34:01
AUTHOR'S IP LOGGED
107.191.96.123
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