Border of the universe?

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Sounds like such laziness would jack up the equations, anyway. Creating a false variable in the name of "ease and elegance" seems like it would automatically void any equation it was used in.....

Sorry, what I was getting at was that it takes an infinate amount of energy to reach the speed of light. This is like saying the speed of light is un-obtainable. It's just expressed in theory as infinity.

Was at work, on my Droid. So couldn't explain in more than a paragraph.

If space were infinate then so would time be infinate. Time had a beginning 13 or so billion years ago. So did space, as they are part of the same thing.

So does infinity have a beginning? It can't because infinity is not an exact figure. Infinity should be all encompassing with no beginning or end.

So infinity *is* a problem. That's the way I see it.

I had it all figured out one day.

The universe consists of matter, energy, and empty space.
We tend to assume that stuff made of matter is the only stuff that matters.

But Einstein showed us that energy is a "thing" and that it has mass, and space is also a "thing" that has behavior and interacts with matter and energy. Space gets warped by matter to create the illusion of gravity- for example.

So at the edge of the universe- all matter peters out, all energy peters out. But what you have to realize is that what also comes to an end is empty space. We tend to think of matter and energy petering out and just black empty space beyond. But actually space itsself comes to an abrupt end.

Beyond the edge is no matter, no energy, and no empty space.

SInce we are composed of matter, energy, and empty space ourseleves, we cannot imagine the absence of all three.

But its there!

The universe is kind of flexibale bubble in a foam mattress.

There's an infinite amount of numbers between the finite range 0 and 1. If there's some jobs over the border of the universe then lets start digging now.

There's a brick wall and beyond it is just a blank space. If you have binoculars you can see a parallel version of yourself.

There is minimal evidence suggesting an end to the universe. It seems to go on forever, even with the most powerful of telescopes.

[youtube]http://www.youtube.com/watch?v=dx_lIv5SkHM[/youtube]

That's doesn't disprove a finite universe.

We will never see enough of the universe by telescope (or any other em wave) to determine if it actually has an "edge" or not. This is because of the way it is expanding. Some galaxy's are moving away from each other at faster than light speeds.

Umm yeah there is a cowboy universe on the other side and you can see yourself looking like a cowboy. I saw it on a documentary.

ah you saw the same documentary.

Rather then looking outward to the Cosmos, is it possible we are really seeing the border of the Universe as we peer into the sub-atomic world through electron microscopes? Is there an end to how small you can look into reality?

not according to Jennifer Lien, its all clouds and sunsets "beyond" the subatomic.

There is no physical evidence at hand to support that.

ruveyn

really? i think the box set of startrek voyager is physical?

I suggest you look up the term "renormalization"...

Much of quantum theory is actually kind of (educated) guess work. Look at the quark for instance, a totally unprovable concept but the predictions work so quarks are assumed to exist.

Hmmm I may just do that