Originally Posted by break19
Why? The max speed limit of the universe: speed of light. So, imagine a train at 1mph less than light speed, someone on the train starts running towards the front of it, at 5mph, did they just break the speed limit? Nope. time is slowed to a point that the person doesnt seem to even move, to an observer on earth...
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Another great way to look at this problem is to picture a ball that represents a light photon bouncing up and down between the floor and the ceiling of a box. It's moving up and down at the speed of light in a straight line
Now... make the box start moving at a very high rate of speed, nearly the speed of light. To a person standing in the box, the ball is still bouncing straight up and down. However, for an outside observer, the box is moving, so the ball is also moving horizontally...
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The speed of light is constant, so the time between when the ball hits the top and the bottom doesn't change. However, the length of the line between the top and the bottom is different for the inside and outside observers.
If the time between hitting the top and the bottom is the same, and the speed of light does not change, but the length of the line over which the ball had to travel did change, then the only thing that could have changed for the inside and outside observer is the time it took to cover the distance. Time has to have moved faster for the outside observer than the inside observer.
Again... all stuff that makes your head hurt ~lol~