Tuesday, October 16th 2007

Electromagnetic Wormholes May Make 3D TVs Possible

A professor of mathematics at the University of Rochester named Allan Greenleaf has solved a mathematical problem which could bring electromagnetic wormholes (EMW) into existence. These EMWs would create a full invisibility cloak in a tube which surrounds whatever they were employed to hide. Such devices could eventually be employed to make true 3D TV possible, and without special glasses. Researchers themselves admit this is a long way off from practical application. However, scientists are now theorizing about such things and believe that they are ultimately possible.


In their simplest forms, EMWs are basically tubes. They create a specific type of EM field around an object, one which refracts electromagnetic waves of all frequencies, according to the researchers. The EM radiation continues on from its source as it would've without the tube being there. It would be like an invisible paper towel roll. When you hold it up, the light from behind is refracted around, no matter which way it was turned, producing a true invisibility cloak. These tubes would then be placed in such a way as to surround an object, thereby making the object inside appear invisible. The researchers indicated that the field generated would also cause an odd side effect. If, for example, you were to look in one end of the tube and out the other side, the generated field would produce a fish-eye appearance, or something like an Escher drawing, making the tube's through-image appearance distorted. The scientists were able to take their theory and apply it to practical applications, at least in a mental exercise. For example, micro-surgery in the presence of an MRI system would be possible. Since any tools a surgeon might need to use would greatly distort the MRI field and subsequent display the surgeon would use, the desire to electromagnetically cloak all parts of the tool except for the very tip would be prevalent. This would result in a significantly greater ability for surgeons to see what they'd be doing with greater image quality and accuracy, and in real-time through the MRI. Fewer distortions means potentially life-saving solutions as they guide tools more expertly through computer assistance. Potentially one of the more exciting future aspects of the design would be the 3D TV. Consider fiber optics lights and the bundle of cords which shine the light out from some central source. When the cords are held together they produce a lot of light. Individually however, they are tip lights only which, while sometimes pretty, don't convey a lot of light. Well, for the 3D TV something similar would be used. Imagine an array of toothbrush-like bristles extending up from a projection source. The bristles would be of different lengths, however, fully occupying all points in a cube, each comprising a single dot at a given X/Y/Z coordinate. Rather than just having a pixelated surface image as with traditional TV, layer after layer of pixelated images would be created, each corresponding to a specific layer or slice of the 3D image being projected. Now, using traditional fiber optics cables to achieve this effect is theoretically possible today. However, the cables themselves would quickly get in the way. Anything below the second or third layer would become very difficult to see. The interference from the fibers themselves would distort the light, making it dim and probably completely obstructed below the first few layers. The mathematicians involved in carrying out this research have suggested that by cloaking all of the fiber optic stems from source to tip, all of the emitted light from inside of the cube would be visible, thereby allowing for 3D TV. Rather than the stems obstructing the light from all the 3D pixels, they would simply carry the light around the EMWs straight to the eye. One of the researchers described it as "a thousand pixels suspended in mid air." They admit it's a long ways off, but mathematically it is possible, and it is something they're thinking of.Source: TG Daily
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25 Comments on Electromagnetic Wormholes May Make 3D TVs Possible

#1
marsey99
i will belive it when i see it...hold on...will i see it? :D
Posted on Reply
#2
Firedomain
THIS IS FCUKING AWESOME!!!!!!!!!!!!!!!
FINALY SHIT U ONLY SAW IN GAMES (& I GUESS SORTA IN SOME MOVIES)
IS FINALY BECOMING REAL.....
Since it refracts electromagnetic waves of all frequencies wouldn't that make it invisible to computers & shit?
or would sound & stuff still bounce back off it.....?

its quit scary when u think about it.... is anyone gonna tell me that the government wont 1day implement this in a way thats going to compromise everyones privacy & stuff (for example camera's that are almost invisible apart from the lens..... coz we'll never know.....)

still this is the most awesome thing i have ever read.... now you dont have to create floating stuff that runs by air or anything... coz u can just hide it all instead:D
even 2d monitors that float & just show a screen & a 5mm floating dot above it for your webcam!!!

i'll shut up now... suddenly i have a mass of thoughts that this technology could be implied on!!!
Posted on Reply
#3

how cool would it be if our armed forces could go in like the predator? no complaining about security, because you can sneak in, take care of the problem, and avoid major wars
Posted on Edit | Reply
#4
Kreij
Senior Monkey Moderator
Hmmm ... I think this is fitting ...

Posted on Reply
#5
Easy Rhino
Linux Advocate
so invisibility and 3d porn!! two birds with 1 stone!
Posted on Reply
#6
Firedomain
rofl.. i think this post is gonna come up with a lot of stupid/cool uses for this technology!
Posted on Reply
#7
tigger
I'm the only one
Lol kreij,i get ya,there on they're thinking of step 3,weres step 1 and 2?

really cool idea tho'
Posted on Reply
#8
DaMulta
My stars went supernova
US military buys the info and we never this this tech again....."It could happen"


They had 3d TVs at CES last year that didn't take any glasses, but I think you couldn't move around the room and still see it.
Posted on Reply
#9
Firedomain
didn't even think bout that... its most likely what will happen.. he'll make billions & the "U.S." will buy it & noone will see it again..... although they wouldn't have seen it in the 1st place coz its invisible.....yes..................

although the possibilities may be to large for just the military...........

we will see....... or not, as i just said..... ummmm...... yer..........

& was that 3d tech at CES by any chance a "heliodisplay"?
Posted on Reply
#10
Kreij
Senior Monkey Moderator
by: tigger69
Lol kreij,i get ya,there on they're thinking of step 3,weres step 1 and 2?

really cool idea tho'
It is a cool idea, but there is so much pertinent information missing from this article that it is laughable.

For instance ...
1) In order to generate an EM Tube to bend the frequencies around it you would need an EM Tube generator. How much power would the generator need to create a tube that would bend "all" frequencies, or even just visible light frequencies?
2) Can an EM Tube generator exist inside the tube along with what you are hiding? or would that distort the tube?
3) The magnetic field of an MRI scanner is about 25x the earth's magnetic field (or they were when I built them). What effect would the MRI's field have on a much smaller EM tube?
If for some reason the "cloaking" field collapsed, what then? I've seen what an MRI scanner does with anything even marginally subject to magnetic fields, and it ain't pretty.
4) If the military hid something would you still see it if you look through the tube? Yes, according to the article.
5) 3DTV, it is impossible to run fiber optic lines to every x,y,z point in a cube, as the strands of fiber take up a portion of the cubic volume that "tips" would need to be located at.

Yah, I know ... I'm a buzzkill :D
Posted on Reply
#11
Easy Rhino
Linux Advocate
by: Kreij
It is a cool idea, but there is so much pertinent information missing from this article that it is laughable.

For instance ...
1) In order to generate an EM Tube to bend the frequencies around it you would need an EM Tube generator. How much power would the generator need to create a tube that would bend "all" frequencies, or even just visible light frequencies?
2) Can an EM Tube generator exist inside the tube along with what you are hiding? or would that distort the tube?
3) The magnetic field of an MRI scanner is about 25x the earth's magnetic field (or they were when I built them). What effect would the MRI's field have on a much smaller EM tube?
If for some reason the "cloaking" field collapsed, what then? I've seen what an MRI scanner does with anything even marginally subject to magnetic fields, and it ain't pretty.
4) If the military hid something would you still see it if you look through the tube? Yes, according to the article.
5) 3DTV, it is impossible to run fiber optic lines to every x,y,z point in a cube, as the strands of fiber take up a portion of the cubic volume that "tips" would need to be located at.

Yah, I know ... I'm a buzzkill :D
you should talk to prof greenleaf about it.
Posted on Reply
#12
Kreij
Senior Monkey Moderator
by: Easy Rhino
you should talk to prof greenleaf about it.
LOL ... I would love to.
Posted on Reply
#13
Polaris573
Senior Moderator
by: Kreij
It is a cool idea, but there is so much pertinent information missing from this article that it is laughable.
It's a summary of an actual scientific paper emphasizing practical applications. Of course information is missing, it's written for the layman, this does not make it laughable. High level mathematics is not understandable by the bulk of the population.

Here is the paper, submitted by Greenleaf to the journal for publication, if you're interested.
Posted on Reply
#14
kwchang007
Interesting to say the least. But way confusing....lol. So basically wait what, I don't even know where I wanted to go with this. But this is awesome if they can bring this to market.
Posted on Reply
#15
Kreij
Senior Monkey Moderator
Much better, thanks Polaris.

The 3D Display is described differently in the paper.
3D video displays. Divide a cube in R3 to N×N×N
voxels (three dimensional pixels) and put an end of a in-
visible tunnel into each voxel. Assume that the end of
each tunnel is much smaller than the voxel, so that from
the exterior of the cube, all ends of the invisible tunnels
are directly visible along any line that does not intersect
the other ends of the wormholes. Then, by inserting light
from the other ends of these N3 invisible tunnels, one
could direct light separately to each of the voxels. This
creates a device acting as a “three dimensional video dis-
play”.
That is much clearer than the summary, as is the MRI applications (even though they do not elaborate on them in the paper either).

My favorite part of the paper :D ...
For simplicity, we choose a metric on the
wormhole manifold M which is Euclidian on M1, and on
M2 is the product of a given metric g0 on S2 and the
metric δ2 dx2 on [0, 1] where δ > 0 is the “length” of the
wormhole.
I guess it just doesn't get much simpler than that !!
Posted on Reply
#16
PVTCaboose1337
Graphical Hacker
by: Easy Rhino
so invisibility and 3d porn!! two birds with 1 stone!
AWESOME! Now there needs to be like... wait! SURROUND SOUND AND 3D!
Posted on Reply
#17
Firedomain
its all comming together now... soon u'll be able 2 do it by urslef........
.........ummmm..........properly i mean............
ROFL
Posted on Reply
#19
Firedomain
wow... thats pretty cool stuff.... (in both aspects! lol)
Posted on Reply
#20
WarEagleAU
Bird of Prey
Kind of freaky and scary. I thought worm holes were theorized as a distortion in the space time continuim and was used as a travel path from one point to another one light years away. Now I see its used as a vorpal tube of some sort? Magnificent and frightening.
Posted on Reply
#21
DrunkenMafia
And on the news today.......

Since the release of the worm hole invisibility cloak 2 days ago, yet another man has been found hiding behind one in the girls shower room.....



HAAHAAAHAAAA....
Posted on Reply
#22
Firedomain
that brings another thing up........ you can't see it & you can't see out of it......

since its electromagnetic waves wouldn't that stop someone from fully cloaking a military vehicle for instance.

because the vehicle would have no bearings & no line of sight.............
Posted on Reply
#23
Kreij
Senior Monkey Moderator
by: Firedomain
that brings another thing up........ you can't see it & you can't see out of it......

since its electromagnetic waves wouldn't that stop someone from fully cloaking a military vehicle for instance.

because the vehicle would have no bearings & no line of sight.............
That's why the Klingon's had to uncloak to fire on the Enterprise :)
(or was it the Romunlans? I forget who had cloaking. Sorry.)
Posted on Reply
#24
Polaris573
Senior Moderator
by: Kreij
That's why the Klingon's had to uncloak to fire on the Enterprise :)
(or was it the Romunlans? I forget who had cloaking. Sorry.)
Both. :o
Posted on Reply
#25
Firedomain
wouldn't have a clue.. i like current things.. not current themed things..... lol
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