We live in a bubble. Seriously.

[vlad321]

tarheel91 said:
Am I going to be the only one to own up to the fact that the void thing went WAY over my head. I'm in AP Physics C, and I'm dumbfounded. I don't see how a void would make the distance increase over time. I'm not saying they're wrong; I just don't get it.

 

AP Physics C wass an easy as hell course and of course it would go over your head because that's jus mechanics and E&M. Though I can tell you right now the E&M AP test will be your worst nightmare, even when you get to college.

Just to draw a picture of what Fayceless said. You know the general representation of the space-time continum being a streteched rubber sheet? With massive things pushing "down" on the surface more than less massive. When it stretches light takes longer to travel through the gravitational field of an object than if there was no object. Now if the universe is not uniform and we live in a bubble imagine what Fayceless said in terms of the rubber analogy.

 

OT: The problem given in the article is the very first thing that popped into my head before I even reached it. It is possible that there are other such voids though, not just ours.