Experiments show the effects of a fourth spatial dimension - Sensationalist Headlines

[url]http://en.brinkwire.com/74571/experiments-show-the-effects-of-a-fourth-spatial-dimension/[/url] [url]http://www.chemeurope.com/en/news/1152755/a-look-into-the-fourth-dimension.html[/url] [QUOTE]By placing together two specially designed 2D setups, two separate teams of researchers – one in Europe and one in the US – were able to catch a glimpse of this fourth spatial dimension through what’s known as the quantum Hall effect, a certain way of restricting and measuring electrons. “Physically, we don’t have a 4D spatial system, but we can access 4D quantum Hall physics using this lower-dimensional system because the higher-dimensional system is coded in the complexity of the structure,” a researcher with the US-based team, Mikael Rechtsman from Penn State University, told Ryan F. Mandelbaum at Gizmodo. “Maybe we can come up with new physics in the higher dimension and then design devices that take advantage the higher-dimensional physics in lower dimensions.” In other words, just as a 3D object casts a 2D shadow, scientists have managed to observe a 3D shadow potentially cast by a 4D object – even if we can’t actually see the 4D object itself. That could unlock some new findings in the very fundamentals of science. Thanks to some rather advanced calculations – which won the Nobel Prize for Physics in 2016 – we know that the quantum Hall effect points to the existence of a fourth spatial dimension.[/QUOTE]

:huh::johnnymo1:

[QUOTE=lintz;53035942]:huh::johnnymo1:[/QUOTE] We can study a 3 dimensional shadow of a fourth dimension in some very specific circumstances

Thinking of a fourth dimensional object is a brainfuck, how do you even start to get a concept of what a 4d object looks like

[QUOTE=Svinnik;53035974]Thinking of a fourth dimensional object is a brainfuck, how do you even start to get a concept of what a 4d object looks like[/QUOTE] Understanding a 4th spacial dimension isn't something that's easy to explain. [media]https://www.youtube.com/watch?v=rG6aIVGquOg[/media] After watching videos like this, I was able to understand it. It hurts just looking at these things when they move for me now. [editline]8th January 2018[/editline] It's like another axis you can't [i]see[/i]. The object is retaining all it's dimensions and shapes, but when it rotates on it, it looks... well, bizarre. [editline]8th January 2018[/editline] Also, this is different from time, we're talking about a 4th [i]spacial[/i] dimension here.

So wait. There is a more-dimensional space beyond us? So, brane theory confirmed? The article has me confused. Did they actually discover there is a fourth spatial dimension, or did they just simulate how some physics effect would work in it if it existed?

I've been dabbling in the 4th dimension for years, this is nothing new.

Science gives me such a goddamn erection.

[QUOTE=Daddy-of-war;53036008]Science gives me such a goddamn erection.[/QUOTE] But what is the science behind the erection? Would that knowledge give you a double boner?

[QUOTE=Daddy-of-war;53036008]Science gives me such a goddamn erection.[/QUOTE] Schrödinger's erection

Actually, I should correct myself, time shows properties of a 4th spacial dimension, hence spacetime, but that's physics and I'm not knowledgeable enough about the subject to remark further. My understanding of a 4th dimension is through pure mathematics.

i've always wondered what would happen if a fourth-dimensional object [I]did[/I] begin to pass through our third dimension, only for someone to reach out and grab onto it. would they be pulled in a direction they cannot physically comprehend or even begin to conceive? would it be like dropping [I]way[/I] too much acid? i hope science can accurately answer this for me. i've wondered for years.

[QUOTE=Quark:;53036041]i've always wondered what would happen if a fourth-dimensional object [I]did[/I] begin to pass through our third dimension, only for someone to reach out and grab onto it. would they be pulled in a direction they cannot physically comprehend or even begin to conceive? would it be like dropping [I]way[/I] too much acid? i hope science can accurately answer this for me. i've wondered for years.[/QUOTE] imagine being physically stuck in the oify

i'm sure the 4th dimension isn't literally hell :v:

Guys, that first article is basically kinda nonsense, which misquotes and misunderstands this gizmodo article: [url]https://gizmodo.com/two-experiments-show-fourth-spatial-dimension-effect-1821739488[/url] [quote]The major limitation of both is that, well, this is not a real four-dimensional system, but two highly engineered systems demonstrating what some effect would look like if it were happening in four dimensions. [/quote] Yeah, it's not a real shadow of a 4D object falling on our dimensions, it's just a simulation of a 4D physically effect made using some elaborate tricks. The shadow thing was the guy from the first article misunderstanding the gizmondo writer trying to explain 4D with alegory.

[QUOTE=Quark:;53036057]i'm sure the 4th dimension it's literally hell :v:[/QUOTE] Take 4 different types of psychedelics at once, all in 3 times the dosage. Now you know what the 4th dimension is like.

[QUOTE=WhyNott;53036003]So wait. There is a more-dimensional space beyond us? So, brane theory confirmed? The article has me confused. Did they actually discover there is a fourth spatial dimension, or did they just simulate how some physics effect would work in it if it existed?[/QUOTE] Yet another example of terrible science reporting. No, they didn’t probe an extra fourth dimension that’s lying around in nature. They created a system with an effective fourth spatial dimension, which they can tell by the behavior of the quantum Hall effect. That’s very cool, but not as ridiculous as it sounds. There are many-dimensional systems all over in nature. Three classical free particles form a 6-dimensional system of possible configurations (three posititions and three momenta).

[media]https://youtu.be/rE9Cwa5EDDw?t=15s[/media]

[QUOTE=Quark:;53036041]i've always wondered what would happen if a fourth-dimensional object [I]did[/I] begin to pass through our third dimension, only for someone to reach out and grab onto it. would they be pulled in a direction they cannot physically comprehend or even begin to conceive? would it be like dropping [I]way[/I] too much acid? i hope science can accurately answer this for me. i've wondered for years.[/QUOTE] [Disclaimer: This could be completely wrong, I have no real knowledge in this field outside watching some videos] One way to think about such a question is to consider a 2D entity living in your 3D world. E.g. on the surface of your desk. For this example, assume it is unable to perceive height (the Z axis), but able to perceive in both X and Y axes (the surface of your desk). Now, what would happen if you were to lift this entity straight up 1 foot (along the Z axis)? Logically, its perceived environment would not change so much as be instantly replaced (potentially a huge number of times) in a manner that would defy comprehension from the perspective of this entity. This is because the entity is effectively seeing a single slice of (in this example) height the 3D world it lives in (ignoring the potential there's more than three dimensions); thus, moving it any amount in the dimension it cannot perceive shows an entirely different perceive instantly (because, logically, it can only see the smallest possible slice of that third dimension, thus any movement in that dimension shows an entirely different slice of the third dimension). Hopefully that makes sense; my brain hurts.

There was a really good video explaining how to understand higher dimensions and had a VR experience for playing with 4D toys. edit: Here it is: [video=youtube;0t4aKJuKP0Q]http://www.youtube.com/watch?v=0t4aKJuKP0Q[/video] A fun thing to think about is there are 6 ways to rotate a 4D object.

Imagine we forcefully break into the 4th dimension as 3-dimensional beings.

This thread hurts my head and makes me scared.

[QUOTE=Doneeh;53036007]I've been dabbling in the 4th dimension for years, this is nothing new.[/QUOTE] I read that as "dabbing" and got irrationally upset for a second.

[QUOTE=JohnnyMo1;53036076]They created a system with an [B]effective fourth spatial dimension[/B][/QUOTE] This is the part that really seems nuts to me, how do you simulate another dimension of space? [editline]8th January 2018[/editline] also if finding the answer to this question requires me to change my fucking major then just pat me on the head and tell me to shut up

I definitely believe there is a 4th dimension after some close personal experiences, but we are just incapable as humans to comprehend and see it. Not because our intelligence is limited, but because we ourselves are limited. Forever attached, birthed from and fundamentally grounded to a 3D environment

[QUOTE=sourcegamer101;53036796]I definitely believe there is a 4th dimension after some close personal experiences, [/QUOTE] extrapolate?

Hopefully they can figure out how to open my klein bottle for me, the dang thing has been tempting me for years [editline]8th January 2018[/editline] [QUOTE=Mort Stroodle;53036753]This is the part that really seems nuts to me, how do you simulate another dimension of space? [editline]8th January 2018[/editline] also if finding the answer to this question requires me to change my fucking major then just pat me on the head and tell me to shut up[/QUOTE] They didn't, they created a 3D shadow of a 4D system, like a normal shadow is a 2D outline of a 3D system Thats all the analogies I got. The rest of the article is above my paygrade. [editline]8th January 2018[/editline] [QUOTE=Quark:;53036057]i'm sure the 4th dimension it's literally hell :v:[/QUOTE] "Oh god its so indescribably awful! I can't describe it not for lack of words but because i'm in such indescribable amounts of pain!"

best video about the 4th spatial dimension by far in my opinion, the only video that made it 'click' for me in fact if you have half an hour to spare you should watch this [video]https://youtu.be/zwAD6dRSVyI[/video]

things that should not be have turned their gaze towards us, considering when to reach down

[QUOTE=sourcegamer101;53036796]I definitely believe there is a 4th dimension after some close personal experiences, but we are just incapable as humans to comprehend and see it. Not because our intelligence is limited, but because we ourselves are limited, forever attached, birthed from and fundamentally grounded to a 3D environment[/QUOTE] What's the chance that those close personal experiences involves some sort of psychedelics [editline]8th January 2018[/editline] [QUOTE=DrogenViech;53036858]best video about the 4th spatial dimension by far in my opinion, the only video that made it 'click' for me in fact if you have half an hour to spare you should watch this [video]https://youtu.be/zwAD6dRSVyI[/video][/QUOTE] This is a really good video. Actually, 3Blue1Brown's probably the best math channel on youtube. [editline]8th January 2018[/editline] [QUOTE=Mort Stroodle;53036753]This is the part that really seems nuts to me, how do you simulate another dimension of space? [editline]8th January 2018[/editline] also if finding the answer to this question requires me to change my fucking major then just pat me on the head and tell me to shut up[/QUOTE] It is pretty impressive work, just not characterized well in the article at all. I can't think of an intuitive example or simple analogy. I mean, you could have something like a flat rectangle, and if you identify points on the boundary you can turn it into a torus, but the torus is still two-dimensional topologically. I can't easily see how you can make a system grow an extra dimension. But as I said before, there are actually tons of high-dimensional spaces associated to rather ordinary objects out there. The phase space of a rigid 3D body is twelve-dimensional (three coordinates to describe position, three to describe momentum, three to describe rotation angles, three to describe angular momenta). So it's not out of the ordinary that we have high-dimensional spaces living within our 3D world in a way.