10 dimensional space...explain

[peter22]

Courtesy of these boards, I watched the wonderful video of 10 dimensional space and found it really quite interesting. Impenetrable, but interesting. Can anyone explain it in more detail?

http://www.tenthdimension.com/medialinks.php

 

[z3ro]

So...if i visit the tenth dimension, I can build an infinite improbability drive?

 

[peter22]

So...if i visit the tenth dimension, I can build an infinite improbability drive?

Yes?

 

[z3ro]

Yes?

Sweet.

 

[us38]

Courtesy of these boards, I watched the wonderful video of 10 dimensional space and found it really quite interesting. Impenetrable, but interesting. Can anyone explain it in more detail?

http://www.tenthdimension.com/medialinks.php

That's based off of a science fiction book. The first four are pretty accurate, but the credibility drops off fast after that.

 

[Chalnoth]

Yeah, the fifth and above are complete gibberish. Also don't pay any attention about the "folding" concept. It's not useful.

Instead, take the description of the fourth dimension, and use that to visualize all others.

Then it is perhaps good to consider ways in which these other dimensions might be invisible to us, if they exist. One potential possibility for these other dimensions is that they are physically small: you can't move far in that direction before ending right back where you started. This would be akin to looking and seeing a line, but, when we zoom way in close to the line, we notice it's actually a tube instead: there's another direction which we can move along the line, but we just don't see it because we can't move very far that way.

Another potential possibility for the existence of extra dimensions is that we exist on a membrane that is in a higher-dimensional space. For this, you could imagine our own space-time as being a large sheet of frabric sitting out in empty space. Since we are confined to our space-time, we cannot move off the sheet of fabric, but there may be space off in that direction, and only gravity can move in that direction. So, sensitive experiments of gravity may be a way to determine if this describes our world.

 

[Upisoft]

Yeah, the fifth and above are complete gibberish. Also don't pay any attention about the "folding" concept. It's not useful.

Instead, take the description of the fourth dimension, and use that to visualize all others.

Then it is perhaps good to consider ways in which these other dimensions might be invisible to us, if they exist. One potential possibility for these other dimensions is that they are physically small: you can't move far in that direction before ending right back where you started. This would be akin to looking and seeing a line, but, when we zoom way in close to the line, we notice it's actually a tube instead: there's another direction which we can move along the line, but we just don't see it because we can't move very far that way.

Another potential possibility for the existence of extra dimensions is that we exist on a membrane that is in a higher-dimensional space. For this, you could imagine our own space-time as being a large sheet of frabric sitting out in empty space. Since we are confined to our space-time, we cannot move off the sheet of fabric, but there may be space off in that direction, and only gravity can move in that direction. So, sensitive experiments of gravity may be a way to determine if this describes our world.

You could be right, of course, but until we could not measure those dimension, if they exist, no one could tell what they resemble.

 

[Chalnoth]

You could be right, of course, but until we could not measure those dimension, if they exist, no one could tell what they resemble.

The problem, Upisoft, is that the descriptions of the extra dimensions beyond the fourth in that film are completely and utterly wrong. Those descriptions do not fit the very specific thing we mean when we are talking about extra dimensions in physics. A dimension is nothing more and nothing less than a direction in which something can move.

 

[Upisoft]

The problem, Upisoft, is that the descriptions of the extra dimensions beyond the fourth in that film are completely and utterly wrong. Those descriptions do not fit the very specific thing we mean when we are talking about extra dimensions in physics. A dimension is nothing more and nothing less than a direction in which something can move.

Yes, I know what are the 3 dimensions we can observe with our senses. Time is somehow different, but is still dimension.
Anyway, while my senses can't tell me enough details about what are exactly the space and the time, I have some general view of them.
Now why I should think that if there are other dimensions they have to have the same properties like ours?

 

[Chalnoth]

Now why I should think that if there are other dimensions they have to have the same properties like ours?

Because if they didn't, they'd be called something else.

 

[Upisoft]

Because if they didn't, they'd be called something else.

So, lets sit and wait. When we can observe them we will decide how to call them. Now we don't know even if they exist.

 

[Chalnoth]

So, lets sit and wait. When we can observe them we will decide how to call them. Now we don't know even if they exist.

The problem with the video, Upisoft, isn't that the things the video described don't exist. It's that the video was calling them dimensions. After the fourth dimension, the things described decidedly do not fit the definition dimension. That is all I'm trying to say.

 

[AV1611VET]

You can show four dimensions of space using the Bible:

[bible]Isaiah 34:4[/bible]

If 3-dimensional space can be "rolled together as a scroll", then a fourth dimension would be needed to roll it into.

 

[peter22]

OK, I'm very interested in wacky physics, but lack the "brain meats" to understand them fully since I never studied it. Thanks for the replies.

 

[Loudmouth]

Instead, take the description of the fourth dimension, and use that to visualize all others.

Actually, it's a lot easier to drop the third dimension and visualize it in terms of a two dimensional world. I believe it was Riemann who used the bookworm analogy, and it works well here. Imagine that you are a two dimensional bookworm travelling across a page. Now imagine that you are travelling across a page that is folded and crumpled. Being two-dimensional you would not be able to visual or see the three dimensional folds and crinkles of the page. However, you would be tossed side to side as you encounter the three dimensional folds. You would be tossed about by an invisible force caused by extradimensional folds. This is analogous to us being tossed about by an invisible force called gravity. This could also apply to all of the other fundamental forces.

 

[Loudmouth]

OK, I'm very interested in wacky physics, but lack the "brain meats" to understand them fully since I never studied it. Thanks for the replies.

Many theoretical physicists claim that no one can truly "see" or fully understand extra dimensions. However, physicsts are really good at mathematically modeling them.

Another fun example of extradimensions is the tesseract which is pictured below. A tesseract is what you get after unfolding a cube with four spatial dimensions. As you already know, if you unfold a three dimensional cube you get a flat, two dimensional cross. Therefore, a four dimensional cube folds out into a three dimensional cross.

 

[peter22]

Many theoretical physicists claim that no one can truly "see" or fully understand extra dimensions. However, physicsts are really good at mathematically modeling them.

Another fun example of extradimensions is the tesseract which is pictured below. A tesseract is what you get after unfolding a cube with four spatial dimensions. As you already know, if you unfold a three dimensional cube you get a flat, two dimensional cross. Therefore, a four dimensional cube folds out into a three dimensional cross.

OK, that's starting to make more sense. But how many dimensions are there commonly accepted to be?

 

[Upisoft]

OK, that's starting to make more sense. But how many dimensions are there commonly accepted to be?

3 space + 1 time = 4.

I believe that some theories go as far as 26, but as we can't observe them, no one can tell if they are real, or they are some nice math trick that make their equations work.

 

[Chalnoth]

3 space + 1 time = 4.

I believe that some theories go as far as 26, but as we can't observe them, no one can tell if they are real, or they are some nice math trick that make their equations work.

Well, we can't observe them yet. Perhaps some day, tests of short range gravity and high energy physics may potentially provide evidence of higher dimensions. We'll see.

But yes, for now, all that we can be sure of is that 3 space and 1 time dimension exist.

 

[MorkandMindy]

Well, we can't observe them yet. Perhaps some day, tests of short range gravity and high energy physics may potentially provide evidence of higher dimensions. We'll see.

But yes, for now, all that we can be sure of is that 3 space and 1 time dimension exist.

Greetings Chalnoth How do you explain electron spin or is there a good link for it?