Do We Expand With The Universe?
Help support MinuteEarth - http://subbable.com/minuteearth MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics...
==========
Physicists tell us that the universe is expanding, but does that mean we expand with it? I mean,if so, wouldn't no one notice because everything would scale up at the same relative size andit would seem like nothing had changed?Well, the truth is, the universe isn't expanding. Space is. Of course, everything else in theuniverse is "in" space, and ignoring the influence of any other forces, when the space betweenthings expands, those things will appear to be carried farther apart. But there are otherforces in the universe, and their strengths aren't directly affected when space expands.For example, gravity and electromagnetism are able to hold atoms and solar systems togetherbecause these forces are too strong for the slow expansio...
==========
Physicists tell us that the universe is expanding, but does that mean we expand with it? I mean,if so, wouldn't no one notice because everything would scale up at the same relative size andit would seem like nothing had changed?Well, the truth is, the universe isn't expanding. Space is. Of course, everything else in theuniverse is "in" space, and ignoring the influence of any other forces, when the space betweenthings expands, those things will appear to be carried farther apart. But there are otherforces in the universe, and their strengths aren't directly affected when space expands.For example, gravity and electromagnetism are able to hold atoms and solar systems togetherbecause these forces are too strong for the slow expansio...
