Random Science and More Thoughts

[Blast!10]

Time slows down, yes, but does it really stop?

Well it does slow down. When you reach the center, it just stops. But another interesting fact about black holes is that when you enter, the incredible mass of the black hole stretches and stretches your body until it splits into two.

The galaxy is one big black hole, so would time go faster if you went outside it?

The first answer that sprang to my mind was "of course not, we're not IN the black hole!", but then I thought that maybe if we would move farther and farther away, time would start going faster and faster? If I'm right, the change would be insignificant but it would exist nonetheless.

Another thought that came to my mind is that it could be that as we move farther away from the center, the change in time speed becomes more and more insignificant... until it reaches a border and the time speed doesn't change anymore? I don't think it has a border (infinity does exist, you know) and even if it DID have a border, it would probably be really far and other black holes we would pass by would slow time down again.

And actually, the fact that the center of the galaxy is a black hole is just a hypothesis. We could be all wrong.

What about the universe? The universe is a really interesting thing to talk about.
Is it infinite?
Did its growing speed ever vary? (If not, then I know how to calculate its width. I did that once)
Are there other universes? (I believe there may be, but if there are then we most likely can't see them even if we put them under a microscope)
Scientists believe that there is no empty space outside the universe... but absolutely no matter as well. So what IS there, then?
How would the universe look like from the outside?
Could it be that some of the things we see in outer space are from other universes?
If this universe was actually two universes, would it be diverse? (just kidding here)

[Emerald141]

What about the universe? The universe is a really interesting thing to talk about.
Is it infinite?

An interesting thought... The concept of infinity has always fascinated me, but I've never really been able to understand it space-wise.

Did its growing speed ever vary? (If not, then I know how to calculate its width. I did that once)

The growth speed is steadily accelerating, faster than the speed of light. We wouldn't be albe to reach the edge if we tried.

Are there other universes? (I believe there may be, but if there are then we most likely can't see them even if we put them under a microscope)

I expect there are infinite parallel universes, but I'm not sure of anything in our own multiversal plane.

The day of Einstein's death, he started work on a "theory of everything," which could explain if there are other universes or not. It's under work by multiple scientists, but it's not finished yet.

Scientists believe that there is no empty space outside the universe... but absolutely no matter as well. So what IS there, then?

Hard one. I think there is something holding our universe intact, but it's probably undescribable by humans.

How would the universe look like from the outside?

I expect it would look like a giant bubble containing loads of lights. We're never going to know, unless someone can invent the Wormhole Key.

Could it be that some of the things we see in outer space are from other universes?

I doubt it, unless those things are many times bigger than our own universe. They're really far away.

If this universe was actually two universes, would it be diverse? (just kidding here)

As if there wasn't already enough diversity here on Earth.

Now I have some questions of my own:

The galaxy has a core, likely a supermassive black hole. What about the universe?
Logically, if there are infinite universes in existence, wouldn't there be a planet exact to Earth in every way?
What about Wonderland? Is it possible for that to exist, given that there are alternate physics in alternate universes?
If the multiverse indeed exists, is there anything larger than it? (e.g. multimultiverse)
What's the probability for a sentient species forming? How close could it be to our home star?
How would you get gravity on a moving spaceship?
Are there wormholes?
What about white holes?
What came before the universe? Was the Big Bang just a Big Crunch of a previous universe?

[MyNameIsKooky]

The galaxy has a core, likely a supermassive black hole. What about the universe?

There are millions of galaxies that are 'close' to eachother (compared to the entire universe) so there might be a supermassive black hole pulling them in.

Logically, if there are infinite universes in existence, wouldn't there be a planet exact to Earth in every way?

Likely.

What about Wonderland? Is it possible for that to exist, given that there are alternate physics in alternate universes?

In this gargantuam multiverse, there may indeed be a planet very similar to Wonderland with Stinker-like creatures solving puzzles looking for Gold Stars.

If the multiverse indeed exists, is there anything larger than it? (e.g. multimultiverse)

No one may ever know. Like the universe, the multiverse is most likely expanding very rapidly.

What's the probability for a sentient species forming? How close could it be to our home star?

There is no doubt life in other places in the universe. However, no real ones have been seen by human beings.

How would you get gravity on a moving spaceship?

You don't. At least that's what I think. Maybe you somehow could take some magnetic radiation from the center of a planet and somehow put it in the spaceship.

Are there wormholes?

Yes. Scientists say that they must exist to make the universe possible.

What about white holes?

Well, black holes are perfect black spheres with such strong gravity that nothing, not even light, can escape it. A disc is spinning inside so fast that it crushes whatever enters releasing twin jets of matter. Since it is a perfect black sphere it reflects nothing and whatever goes in cannot get out. Black holes are invisible to the eye. I seriously doubt that there are such things as white holes. If white holes did exist I guess they would REFLECT everything.

EDIT: Oh, wait, I did some research, and white holes do exist. White holes are the time reversals of black holes.

What came before the universe? Was the Big Bang just a Big Crunch of a previous universe?

It may be impossible to find out. Our Galaxy was created by a molecular cloud which exploded into the Sun, releasing matter which we call the planets and asteroids today. But how did that matter get there in the first place? We may never know.

[Emerald141]

Moreover, since energy cannot be created or destroyed, it must therefore not exist. So why does it?

Random Thought: The initial four ancient 'elements,' earth, air, water, and fire, are all different states of matter; solid, gas, liquid, and plasma, respectively.

[maxnick]

Moreover, since energy cannot be created or destroyed, it must therefore not exist. So why does it?

Wait, a minute, why can't energy exist?

Matter can't be destroyed either...

[tyteen4a03]

Have you guys heard something called Time dilation?

[maxnick]

Have you guys heard something called Time dilation?

No...

What us it???

[tyteen4a03]

Have you guys heard something called Time dilation?

No...

What us it???

It can be illustrated by supposing that two observers are in motion relative to each other, and/or differently situated with regard to nearby gravitational masses. They each carry a clock of identically similar construction and function. Then, the point of view of each observer will generally be, that the other observer's clock is in error (has changed its rate).

[Emerald141]

Right, 'cause time isn't a constant, it's a variable.

In our universe, I suppose you could call it the fourth dimension.

[Blast!10]

and fire, are all different states of matter

AFAIK, fire isn't actually matter. It's some form of energy.

The galaxy has a core, likely a supermassive black hole. What about the universe?

If the universe is a shape that can exist on Earth, it must have a center. The center most likely IS a black hole, or something similar.

Logically, if there are infinite universes in existence, wouldn't there be a planet exact to Earth in every way?

Yes there would. Also, the Quantum Theory states that every microscopic period of time, we are teleported to another universe, and there is a(n insignificantly low) chance that one thing might be teleported to a universe other than everything else, and be lost forever. (That includes humans)

What about Wonderland? Is it possible for that to exist, given that there are alternate physics in alternate universes?

I think it's possible.

If the multiverse indeed exists, is there anything larger than it? (e.g. multimultiverse)

I believe that goes up to infinity, up to a multimultimultimultimultimultimultimultimultimultimultiverse and beyond.

What came before the universe? Was the Big Bang just a Big Crunch of a previous universe?

It can't be, because before our universe began (Big Bang and stuff) the whole universe was smaller than an atom, and matter didn't exist.

The universe exploded out of nothingness about 13 billion years ago. Scientists call this violent beginning the Big Bang. No one knows what caused it. Time itself began with the Big Bang, so the question "what came before?" makes no sense. In a single second, the universe grew from being smaller than an atom to being 20,000 light-years wide. It is still expanding, and may continue to do so forever.

[tyteen4a03]

and fire, are all different states of matter

AFAIK, fire isn't actually matter. It's some form of energy.

AKA Heat+Light.

We are going to learn about electricity after the mid-term exam, I am so excited about it XD

[Qloof234]

Right, 'cause time isn't a constant, it's a variable.

In our universe, I suppose you could call it the fourth dimension.

If we're talking about a fourth physical dimension, along our axis of X, Y, and Z, I don't think time would fit there.

If we have a 2-dimensional object, and extend it along the 3rd dimension (depth, IIRC), then its air becomes bigger. If we consider time as the 4th physical dimension, then it doesn't fit - if we drag said object from the :3rd dimension forward across the 4th dimension (in this example, time), then in the end we don't have the same box on another physical plane, but said box would appear again once that time arrives.

Likewise, if you drag it backwards, it will cease to exist.

Let's say you had a million dollars. If you dragged that back across time, then it would exist for as far back as you put it until the moment that you sent it backwards. In other words, you'd essentially destroy said million dollars.

I do, however, believe that there is another fourth physical plane that isn't time, just like I believe in alternate dimensions/universes.

EDIT: Fixed something I messed up on

[MyNameIsKooky]

The fourth spacial dimension is so fascinating and I believe that 4-dimensional objects DO exist. However, 4-dimension objects seem like a fantasy in our minds. But if you think about it, 3-dimensional objects would seem impossible to imagine to a 2-dimensional being. 4-dimensional objects just might exist.

2D objects are like paper in the 3rd dimension as 3D objects are like paper in the 4th dimension. And so 4D objects are like paper in the 5th dimension.

I heard that 4D objects make 3D shadows.

Also I made a simple expression to discover how many shapes from the (X-1)th dimension are used to make an X-dimensional cube: 2X

By using this expression you can find out what dimensional cubes and how many make up an X-dimensional cube.

Here is expression in words: X-dimensional *shape* is made of 2X (X-1)-dimensional *shape*s.

Here are some using the expression up to the 15th spacial dimension:

1-dimensional line is made of 2 0-dimensional points.
2-dimensional square is made of 4 1-dimensional lines.
3-dimensional cube is made of 6 2-dimensional squares.
4-dimensional tesseract is made of 8 3-dimensional cubes.
5-dimensional hypercube is made of 10 4-dimensional tesseracts.
6-dimensional hypercube is made of 12 5-dimensional hypercubes.
7-dimensional hypercube is made of 14 6-dimensional hypercubes.
8-dimensional hypercube is made of 16 7-dimensional hypercubes.
9-dimensional hypercube is made of 18 8-dimensional hypercubes.
10-dimensional hypercube is made of 20 9-dimensional hypercubes.
11-dimensional hypercube is made of 22 10-dimensional hypercubes.
12-dimensional hypercube is made of 24 11-dimensional hypercubes.
13-dimensional hypercube is made of 26 12-dimensional hypercubes.
14-dimensional hypercube is made of 28 13-dimensional hypercubes.
15-dimensional hypercube is made of 30 14-dimensional hypercubes.

[maxnick]

There's only ten Dimensions...

[Emerald141]

I stand by my argument that time is the fourth dimension, at least in some aspects. If you think about our universe mathematically, as having everything existing all at once, then you would need to know four things to determine the position of an object: the normal three dimensional values AND its position in time.

Kooky is also right in proportion to a geometric definition of a fourth dimension. 4D objects do cast 3D shadows- I have a copy of the shadow of a hyperdodecahedron.

EDIT: Maxnick, we can't be sure of that. there could be an infinite number of dimensions for all we know.

[maxnick]

http://www.youtube.com/watch?v=XjsgoXvnStY

[Qloof234]

I stand by my argument that time is the fourth dimension, at least in some aspects. If you think about our universe mathematically, as having everything existing all at once, then you would need to know four things to determine the position of an object: the normal three dimensional values AND its position in time.

I don't argue that we have to consider all three physical dimensions and time to picture our universe, but I believe that in the concept of physical planes that objects exist on, the fourth dimension refers to another plane upon which we can extend objects, to obtain things like tesseracts.

If we consider time as a physical dimension, and count it as such, then the tesseract - and other shapes like it - would not exist in the fourth dimension, but the fifth dimension - which would also mean that our universe is actually 4-dimensional. This would also incur that 2D is actually 3D, and 1D is actually 2D, etc.

[Emerald141]

*bump*

Okay, I withdraw my time=4D argument. Pathetically, for a while I forgot about the idea of the space-time continuum.

I read an article in a science magazine (BBC Knowledge) that showed our universe might have to have an extra dimension in order to keep it together, and that the other dimension could have been "compactified" so we couldn't see it.

Which makes me wonder if the universe turns into itself if you go far enough, and if it is the only thing out there.

[maxnick]

I think you were right about you 4D=Time idea...

Albert Einstein said the same thing...

[MyNameIsKooky]

I figured out that at least SOMETHING 4-dimensional (excluding time) must exist in our universe.

By 'folding' a 2-dimensional universe over a 3-dimensional wormhole bridge is created. By folding a 1-dimensional universe a 2-dimensional wormhole is created. Like I said before, wormholes must exist to keep or universe stable.

Thus, by folding our universe a 4-dimensional wormhole is created.

[gameboy991]

If time is in the Fourth Dimmension, wouldn't space also be 4D? If so, then time travel could be possible if scientists could warp and/or minipulate the very fabric of space...!

That being said, if time travel does become possible, then think about this: If time travel is minipulated by bending dimmensions and the fabric of space, then if you change the past and cause a future that will cease to exist, that will distort space even further causing time and the universe as we know it to collapse! However, as long as you don't do anything major causing a life or death situation to happen, cease to exist, etc., the universe won't collapse, I.E., if you replace somthing with a decoy when the actual device was about to be blown up into a million pieces, or something like that, then you won't change the future, but now you have that thing at your disposal. Time travel can be used for good or for evil as it is. But if time is already collapsing, then the future could be such as paralyzed, since time could not flow. Physical beings in that future would cease to exist if that future were changed by restoring the distortion of time and space, thus keeping the universe in check. However, if there is still a hole in the fabric of space, a being from that alternate future could still exist, and if so then the universe will eventually fall into ruin.

If you have any questions, I would happily explain further. About half of this was just off of the top of my head, while everything else I discovered somewhere.

Time travel IS possible, but you would first need to distort space without destroying it.

[MyNameIsKooky]

That being said, if time travel does become possible, then think about this: If time travel is minipulated by bending dimmensions and the fabric of space, then if you change the past and cause a future that will cease to exist, that will distort space even further causing time and the universe as we know it to collapse! However, as long as you don't do anything major causing a life or death situation to happen, cease to exist, etc., the universe won't collapse, I.E., if you replace somthing with a decoy when the actual device was about to be blown up into a million pieces, or something like that, then you won't change the future, but now you have that thing at your disposal. Time travel can be used for good or for evil as it is. But if time is already collapsing, then the future could be such as paralyzed, since time could not flow. Physical beings in that future would cease to exist if that future were changed by restoring the distortion of time and space, thus keeping the universe in check. However, if there is still a hole in the fabric of space, a being from that alternate future could still exist, and if so then the universe will eventually fall into ruin.

Uh-oh. The 's at the end clearly mean that you are PLANNING to have the universe fall into ruin! I KNEW GAMEBOY WAS EVIL!

[gameboy991]

Uh, no. I just put them there because I thought it would make a point. Although I do wish to time travel, I wouldn't destroy the universe, rather, I would try to save it instead.

[MyNameIsKooky]

But for a second there you were getting ideas!