Space-time And The Fourth Dimension

[littleitaly1990]

how to start this...

Einstein once theorized that space is composed of a "fabric" that he called space time. space time can be described as the 3d modeling program type thing

for example:

u see this example is incorrect but its impossible for humans to imagine what space-time would actually look like. considering there is no definite interval between the planes which interlock and create space a visual representation would look like a solid cube and the meaning would be lost. there are an infinite amount of planes which create space-time

now according to Einsteins theory any mass placed within space-time bends that fabric and creates what we call gravity. its easy to interpret how this theory works when there is only one plane drawn. for example:

u see how the "fabric" below the earth is bent due to the mass of the earth? well this explains two things. why it is the earth "floats" in space and why the moon rotates around us. and also why we revolve around the sun and so on. black holes are described as a tear in space-time. essentially a steep hole in the fabric.

now... in order for objects to move they have to move on this fabric of space-time. which makes sense thinking about celestial bodies. however the problem i have is on Earth. why is it that we cant walk on space-time into the sky? but birds can fly.

so what is it that keeps us from being able to move on this space-time that can easily support a planet and our gigantic sun?

i wanna get a debate started bout this. no one plas the god card understand? this is purely theoretic science involving quantum physics, calculus and the string theory. but dont be scared to chime in if u dont know ill try and explain the best i can

Space nerd time

Easy answer for this one, the smaller bodies are supported by the fabric. Think of a shuttle in space, is it, or is it not simply floating in space? It's movement, like the sun and Earth's, is determined by inertia. If a person were to ( assuming they were immortal or something) simply exit Earths atmosphere and try walking, it wouldn't really work, because there would be hardly any thrust to increase there momentum. Think of this as a difference between walking on concrete floor (such as most surfaces on earth) vs. walking on an extremely large bunched up super soft blanket, It would be much harder to easily get yourself moving forward on the blanket. But even though it would be much easier for us to obtain thrust on a surface such as the earth, doesn't mean we can't in space, it would just be to minimal to even see in our lifetimes.

[LHatt]

Space nerd time

Easy answer for this one, the smaller bodies are supported by the fabric. Think of a shuttle in space, is it, or is it not simply floating in space? It's movement, like the sun and Earth's, is determined by inertia. If a person were to ( assuming they were immortal or something) simply exit Earths atmosphere and try walking, it wouldn't really work, because there would be hardly any thrust to increase there momentum. Think of this as a difference between walking on concrete floor (such as most surfaces on earth) vs. walking on an extremely large bunched up super soft blanket, It would be much harder to easily get yourself moving forward on the blanket. But even though it would be much easier for us to obtain thrust on a surface such as the earth, doesn't mean we can't in space, it would just be to minimal to even see in our lifetimes.

there would be no thrust at all when just walking, because space is a vacuum so where would be nothing to walk against , with a space shuttle the fuel expands behind it when it is burned pushing, it also since its a vacuum it will keep going without slowing down unless it hits something or there is enough thrust in the opposite direction of travel.

[rusty959]

there would be no thrust at all when just walking, because space is a vacuum so where would be nothing to walk against , with a space shuttle the fuel expands behind it when it is burned pushing, it also since its a vacuum it will keep going without slowing down unless it hits something or there is enough thrust in the opposite direction of travel.

actually... there are still particles in the "vacuum" of space. So yes, technically there is something to walk against. but like littleitaly said it isn't much. One or two particles every cubic meter isn't a whole lot to do anything with.

[jbondox]

Einstein was doing this over 100 years ago... I feel really dumb now!

[jbondox]

actually... there are still particles in the "vacuum" of space. So yes, technically there is something to walk against. but like littleitaly said it isn't much. One or two particles every cubic meter isn't a whole lot to do anything with.

light is made up of photons (particles) and I do believe it would be more than 1 or 2 particles every meter even though they are massless

[LHatt]

light is made up of photons (particles) and I do believe it would be more than 1 or 2 particles every meter even though they are massless

there would be billions-quadrillions of photons where the light is shining, but since they are mass less that still dosent give you any more to walk against than the one or two stray particles that arent light.

[littleitaly1990]

Following Einstein's theory there are particles everywhere, in a different dimension. I read a lot about it a while back, complicated stuff.

[LHatt]

Following Einstein's theory there are particles everywhere, in a different dimension. I read a lot about it a while back, complicated stuff.

i guess its complicated lol

[IH8PunkRok]

It doesn't defy the law of conservation of matter at all. all of the mass is still there, its just compressed. take a nerf ball and squish it. (for the sake of argument assume you are in a vacume or something) All of the matter is still there, just compressed. It is the same with a black hole, just the compression is on an atomic scale and happens to be somewhat infinite.

wut we figured was there is a certain point where everything is at its smallest. lets take quarks for this example (i wont delve into the string theory just yet) so u can take everything and push it so close the at every point of this quark sized mass there is another quark touching it. now the problem is these quarks cant be compressed like we think they can. they would have to either bond or be destroyed and in either case mass is released. but to where? if there is not other dimension then the law of conservation of matter is broken. therefore there must be another dimension for black holes to really exist. true?

Space nerd time

Easy answer for this one, the smaller bodies are supported by the fabric. Think of a shuttle in space, is it, or is it not simply floating in space? It's movement, like the sun and Earth's, is determined by inertia. If a person were to ( assuming they were immortal or something) simply exit Earths atmosphere and try walking, it wouldn't really work, because there would be hardly any thrust to increase there momentum. Think of this as a difference between walking on concrete floor (such as most surfaces on earth) vs. walking on an extremely large bunched up super soft blanket, It would be much harder to easily get yourself moving forward on the blanket. But even though it would be much easier for us to obtain thrust on a surface such as the earth, doesn't mean we can't in space, it would just be to minimal to even see in our lifetimes.

very good example there. basically we cant move on the fabric of space time because we are too slow. like a tiny dust particle moving on a blanket that has gaps between the thread so it falls through.

so does that mean space-time really does have gaps? or am i interpreting wrong

[littleitaly1990]

wut we figured was there is a certain point where everything is at its smallest. lets take quarks for this example (i wont delve into the string theory just yet) so u can take everything and push it so close the at every point of this quark sized mass there is another quark touching it. now the problem is these quarks cant be compressed like we think they can. they would have to either bond or be destroyed and in either case mass is released. but to where? if there is not other dimension then the law of conservation of matter is broken. therefore there must be another dimension for black holes to really exist. true?

very good example there. basically we cant move on the fabric of space time because we are too slow. like a tiny dust particle moving on a blanket that has gaps between the thread so it falls through.

so does that mean space-time really does have gaps? or am i interpreting wrong

At this time there are only theories about this. In all honesty, we have no F*$@ing idea. The problem is we cannot see the fourth dimension, or for that matter ever experience it... However if we look at this problem from a dumbed down perspective, bringing the 4th to 3rd dimensions down to 3rd to 2nd, then yes, there should be some sort of "gap." However we don't nor will we ever have the capability to visualize the true scenario. So, I just speculate.

If someone is having trouble visualizing the "fabric" because it does not fall on a simple plane, keep in mind we can compare it to the 3rd dimension.

length x width x height x time = 4d

The fabric is not on a 2d plane, like say, 4 tires on a road, with the road being the plane. The fabric is on a 3d plane, and infinite 3d planes make up the 3rd dimension. At any given moment in time, everything has exactly, on length x width x height. The next moment, things change. The fabric's plane is on an exact moment, and the forth dimension is the changing from one moment to the next.

Sorry if that's sort of sloppy, it's hard to get the point across lol.