Don't know why I made this thread, just really bored I guess. This is just a list of average misconceptions about the Universe. It's not really an
article, but since alot of people tend to flip-flop their science thinking that College has taught them all they need to know about the world around
us, and I don't have anything better to do...well, you get the idea.
The universe is 13 billion light-years big and we have the tools to see the center of the universe, but don't know where it
The universe is only 13 billion (give or take) years old. This means we can only see up to 13 billion light-years away, but does not
mean the universe is 13 billion light years wide (or long, whichever you prefer). Anything we see within this range is part of the observable
, the part of the universe we can see. It is
If something is outside this range, it doesn't mean it doesn't exist, just that we can't see it -- yet. It is actually estimated that currently the
universe is about 28 billion parsecs, or 93 billion light-years in size. This is due to the rate of expansion the universe underwent during the Big
Bang, and is still continuing to this day. In another billion years, our view will expand to 14+/- billion light years. We can't see the center of the
universe because the universe is homogeneous, meaning matter is spread out evenly among the universe, and also, because the universe is isotropic,
meaning no matter which direction you look, even at the edge of the universe, it looks the same. This of course, is just a principle. The Cosmological
Principle, in fact.
Viewed on sufficiently large distance scales, there are no preferred directions or preferred places in the Universe. Stated simply, this principle
means that averaged over large enough distances, one part of the Universe looks approximately like any other part.
(for the sake of not using Wiki) Source
Outside of the universe is the 4th dimension
This is just one of many theories, and a horrible theory at that. Sadly, I've seen it written on these boards and decided to add it
in. The 3rd dimension sits in the universe. That is to say, the 3rd dimension is not the universe itself, but the 3rd dimension is part
universe. What you are seeing is the 3rd dimension of space itself. Think of what you are seeing as a layer. We exist in the 3rd dimension, which is
just another layer of the universe itself. So the 4th dimension cannot possibly exist OUTSIDE of the universe, because it exists within the universe,
and although it is not a spatial dimension (It isn't X, Y, or Z) it is just another layer and is known as spacetime.
Imagine, for instance, that you're at the center of a hollow sphere. The distance between you and every point on the sphere's surface is equal.
Now, try moving in a direction that allows you to move away from all points on the sphere's surface while maintaining that equidistance. You can't do
it. There's nowhere to go—nowhere that we know anyway.
It is hard to conceive of spacetime, but we do it all the time when we think of timelines. The 4th dimension is just time, or rather, state of being
and time does not exist separate of our universe.
Space and the Universe are the same things
If you haven't read the above misconception, you may want to. Space is the term we use for our 3rd dimension. Most people tend to
confuse Space with Outer Space. They are not the same thing. When you move your arm, you are moving it in Space. When you jump, run, or even use
verbal communication, all these acts occur within Space. When you think of Space, it would be better to visualize your living space rather than Outer
space. Space itself is not made of matter, but it has matter and non-matter. Pockets in space that have no matter are known as Vacuums, and the most
notable vacuum you know of is Outer space.
The universe, on the other hand, depends on which definition you are using. The textbook definition of the universe is that it is everything that is,
however, the one I use, is the universe is everything that is, was, or ever will be. The reason I subscribe to this theory is because it is fact that
space itself is expanding. This space needs something to expand into, and I believe space is expanding into the universe. If you believe in the
multiverse theory, then the universe, how I see it, is where all the multiverses are suspended in. Some call it nothingness, some call it the darkness
we will never know, and I call it the universe itself.
If I haven't scared you off by now with my horrible scientific definitions, then rest assured that this is only what we currently know about our
universe. There is more to it than just what know now, and we may never really know all there is about the universe, but we do know right from wrong
and fact from fiction.
edit on 11-12-2012 by mr10k because: (no reason given)
edit on 11-12-2012 by mr10k because: (no reason