• Is our world going to ever go into the 4th dimension?
    194 replies, posted
[QUOTE=Detective P;24516725]How is movement through time/spacetime movement outside of time? From what I understand, time to us is simply our movement along a fourth dimension through four dimensional spacetime. While there is a forward and back along a fourth dimension, we only go forward from our viewpoint, and hence we can only see it limited, similar to how Sagan explained that a 2dimensional flatlander can only see small sections/slices of a 3dimensional object at a time, we can only see slices of 4dimensional spacetime at a time. It's like if we were flatlanders, and only had two dimensions- length and width, and the concept of height was not fully understandable, if the entirety of our 2d spacetime were to move in 3d spacetime along a third dimension, say 'up', then we would realize when we passed certain points in 3d spacetime that we passed them- similar to how when we move along a fourth dimension, we pass points in 4d spacetime which we interpret as moving forward through time. Least that's how I've always been taught it.[/QUOTE] But when we move through time, for example we can't define a speed we're moving at, since we don't have any other time to compare with :v:
[QUOTE=Coffee;24477967][IMG]http://upload.wikimedia.org/wikipedia/commons/5/55/8-cell-simple.gif[/IMG][/QUOTE] File name of the picture is "8-cell-simple". :wtc:
[QUOTE=thf;24516175]Yeah and I guess they wouldn't see 2d stuff at all like we don't see 1d stuff :v:[/QUOTE] Crazy stuff.
[QUOTE=DatWut?;24520345]File name of the picture is "8-cell-simple". :wtc:[/QUOTE] Yeah, 4d shapes have cells as their "sides" [editline]09:15PM[/editline] [QUOTE=Detective P;24516725]How is movement through time/spacetime movement outside of time? From what I understand, time to us is simply our movement along a fourth dimension through four dimensional spacetime. While there is a forward and back along a fourth dimension, we only go forward from our viewpoint, and hence we can only see it limited, similar to how Sagan explained that a 2dimensional flatlander can only see small sections/slices of a 3dimensional object at a time, we can only see slices of 4dimensional spacetime at a time. It's like if we were flatlanders, and only had two dimensions- length and width, and the concept of height was not fully understandable, if the entirety of our 2d spacetime were to move in 3d spacetime along a third dimension, say 'up', then we would realize when we passed certain points in 3d spacetime that we passed them- similar to how when we move along a fourth dimension, we pass points in 4d spacetime which we interpret as moving forward through time. Least that's how I've always been taught it.[/QUOTE] Well, it is possible that our "time" is a spatial dimension which we move through with a higher temporal dimension as time. That way it's possible there's an infinite stack with dimensions with the one above as it's "time", with an infinitly high temporal dimension. That would be pretty cool :v:
[QUOTE=ZekeTwo;24515310]I was trapped in a 4-dimensional cube once and one of those started flying around the room Oh wait that was just a movie[/QUOTE] You know, I never fucking got my boots back after that...
[QUOTE=Pepin;24509115]I can just imagine it now, a 4th dimensional being explaining how a third dimensional being would experience reality and the complications of 4th dimensional objects interacting with stuff in the 3rd dimension. And then the person would go onto explain that a 3rd dimensional being wouldn't be able to imagine the world that they live in, just as they can't imagine what the 5th dimension would look like. I don't know if we'd look odd because I'd assume a 4th dimensional being would be aware of what objects look like in 3 dimensions. Just as an example, 2D is very common for us to look at and it doesn't look odd. I think that as we go up and up in the dimensions that the beings could still be able to grasp hold of the smaller dimensions such as the first, second, and third, especially since it is a big part of physics. Also, why would it be two additional axises, that doesn't make any sense to me. Maybe I'm understanding this wrong.[/QUOTE] I realized we would look the same to them today, while I was think about it. But anyway, I think I said that wrong, there would be ONE more axis, W, don't know where I got, V, from that would be the 5th dimension. [editline]03:14PM[/editline] [QUOTE=SGorilla;24516752]I doubt there's a 4th dimension, although it's interesting I think it's just one of those things that are perhaps plausible but in the end an idea created by humans. After all, there is no world that is 2D.[/QUOTE] And you know there is no world in the 2nd dimension how?
One thing people seem to miss is that [I]it is impossible[/I] for us to visualize/imagine/picture/represent the fourth dimension. So stop trying!
[QUOTE=Kendra;24515205] Matter + Antimatter = Annihilation Annihilation = Matter and antimatter decay into high powered photons. Guess what light is? Photons.[/QUOTE] What's your point? All electromagnetic radiation is photons. Also CommunistCookie is right, it's "energy" rather than just "photons". Low energy annihilations produce mostly photons but at higher energies they can produce a bunch of other stuff too. [QUOTE=imarawrus;24516600]I know I'll probably get boxes but can some put the 4th dimension into laymans terms for me?[/QUOTE] Maybe this helps: [img]http://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Dice_analogy-_1_to_5_dimensions.svg/400px-Dice_analogy-_1_to_5_dimensions.svg.png[/img] It's just an extra axis. Difficult to visualize.
[QUOTE=superdinoman;24477948]4th dimension is a spacial dimension like every other spacial dimension, just think of it instead of up, down, right, left, it has another movement. My favorite definition of the 4th dimensional movement is to think of the it as "through".[/QUOTE] The fourth-dimensional directions are usually referred to as "ana" and "kata".
[QUOTE=Satane;24516532]Time isn't a dimension it's simply the speed of light.[/QUOTE] Time doesn't exist, humans invented it.
[QUOTE=Stormcharger;24538469]Time doesn't exist, humans invented it.[/QUOTE] Why do people keep saying that? It makes no sense to me.
I just stared cross-eyed at that .gif of a rotating tesseract for about 15 minutes.
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