Extent of the Universe

[dusken]

Originally posted by anileve The new theory, cosmologists Paul Steinhardt and Neil Turok have developed a new cosmology that views the visible universe as one small part of a much larger reality, most of which exsists in other dimensions that we cannot perceive. Our universe exists on a three-dimensional membrane that lies right next to another membrane. Every trillion years or so, the two membranes collide, unleashing firestorm of energy analogous to the Big Bang. As in the earilier model, the universe cools, gives rise to galazies, and eventually expands to newar emptiness. In this version, however, another collision between membranes then restarts the whole cycle of creation.

Thus, time and space are both infinite. Our existence has no beginning or end, it exists in cyclicality.

Interesting idea.

We actually have 5 dimensions that are agreed upon: a coordinate, length, width, height, and time.

[anileve]

Actually the new super string theory which is hellishly complex, claims that the space includes 10 dimensions. Three of which are spatial and one of time, and another six of “particles and forces”. The 3 dimensional membranes collide, since they are not static, the membranes contain energy and carry a force of attraction, which in the event gradually draws them together resulting in a another regeneration of universe.

[sleuth]

flame according to this diagram we stuck somewhere in a middle....there is physical univers and there is non physical univers(red one)...we are in the middle..i guess..i am not sure

[sleuth]

Originally posted by anileve Actually the new super string theory which is hellishly complex, claims that the space includes 10 dimensions. Three of which are spatial and one of time, and another six of “particles and forces”. The 3 dimensional membranes collide, since they are not static, the membranes contain energy and carry a force of attraction, which in the event gradually draws them together resulting in a another regeneration of universe.

If the big bang idea is true,it means black holes or emptiness,or vaccum contains energy...it sounds unverifiable speculation.

[Anonymouse]

Originally posted by sleuth If the big bang idea is true,it means black holes or emptiness,or vaccum contains energy...it sounds unverifiable speculation.

The problem is there is no way of knowing whether or not the big bang is true. Thus people believe it is.

[sleuth]

Originally posted by Anonymouse The problem is there is no way of knowing whether or not the big bang is true. Thus people believe it is.

If they can prove that vaccum contains energy,that's an answer...

[dusken]

Originally posted by anileve Actually the new super string theory which is hellishly complex, claims that the space includes 10 dimensions. Three of which are spatial and one of time, and another six of “particles and forces”. The 3 dimensional membranes collide, since they are not static, the membranes contain energy and carry a force of attraction, which in the event gradually draws them together resulting in a another regeneration of universe.

Yes I know. There are several theories out there all claiming different numbers of dimensions having different roles in reality. What I listed were the dimensions zero through four which are agreed upon and a surely part of the universe as we know it.

[dusken]

Originally posted by Anonymouse The problem is there is no way of knowing whether or not the big bang is true. Thus people believe it is.

You are being unfair. Physicists do not accept the Big Bang as set in stone. It is only that there is evidence to show that it may be true and little to no evidence of any other explanation. The Big Bang cannot be entirely accepted unless the physics of a singularity are understood. And even beyond that there will be further speculation. However, if I was standing on a tall building and noticed a crowd of people at ground level running in all directions outward from what seemed like the same area, I would first assume that they all came from the same place.

[dusken]

Originally posted by sleuth If the big bang idea is true,it means black holes or emptiness,or vaccum contains energy...it sounds unverifiable speculation.

In the case of black holes, it is not unverifiable speculation. Black holes have mass. If something has mass, it is a form of energy. In addition, they spin.

As for vaccuums, dark matter, dark energy and such are speculation based on observation and, in my opinion, not unverifiable. Just because we do not know, does not mean we will not know. People are always so critical of the process of understanding.

[loseyourname]

Originally posted by sSsflamesSs That is precisely my question. If the universe keeps expanding, what are we contained in? If you go to the 'edge' of the universe, and take that extra step to 'pierce' the 'wall' of it, what will you find?

Read up on dimensional inversion and Calabi-Yau spaces. Dimensions four through ten (the lower spatial dimensions) are overtly circular and contained within the space of an elementary particle. Dimensions one through three, the ones we observe, are also circular, but on a much larger scale. To answer your question, there is no edge to the universe. If you travel far enough, you will only end up back where you started, essentially moving in circles.

To answer your questions about black holes, it is fallacious to think of them as having other sides. A black hole is a singularity. It is a point in space with very high mass that exhibits almost unbelievable gravitational attraction. It may exhibit enough power (calculations are inconclusive on this) to tear space, but even so, if you were to move into the tear, you would not in any meaningful way be outside of space. A tear would only mean that unconnected parts of space could theoretically be connected. So the answer to your question, if I have reformulated it correctly, is more space. What lies in that space is another question entirely, and I can't even imagine any way to find out except by going there.