Invisibility Cloak

http://news.yahoo.com/s/ap/20061019/ap_on_sc/cloak_of_invisibility

…holy crap.

[quote]rrjc5488 wrote:
http://news.yahoo.com/s/ap/20061019/ap_on_sc/cloak_of_invisibility

…holy crap.[/quote]

Saw it. Very scary.

I love when science fiction becomes science fact. Can’t wait for the Terminators to arrive on the scene.

[quote]BarneyFife wrote:
rrjc5488 wrote:
http://news.yahoo.com/s/ap/20061019/ap_on_sc/cloak_of_invisibility

…holy crap.

Saw it. Very scary.[/quote]

Is it just me or is there something wierd about the article including a picture of the “invisible” cloak? It would seem they need to go back to the drawing board…

Then again, if you really couldn’t see it, I suppose it would be extremely easy to misplace.

It can divert microwaves, it’s a long long long long long long way off from being any kind of Harry Potter or Predator type cloaking device.

It was said that microwaves have a longer wave length and are larger than visible light making them easier to work with.

I’d imagine it would be like making a design out of individual M&M’s and making a design out of individual grains of sand.

What? Another one? Oh, never mind…

I already thought of a solution.

You build many, many small flexible screens that act as 2 way mirrors, and behind each screen is a tiny video camera.

Each camera displays the image it sees onto the screen directly opposite to where it’s located.

All of the front cameras display what they see on the back and so forth.

It could work.

It is pretty cool though…

Watch the Chinese steal this one from under us too.

[quote]SWR-1240 wrote:
I already thought of a solution.

You build many, many small flexible screens that act as 2 way mirrors, and behind each screen is a tiny video camera.

Each camera displays the image it sees onto the screen directly opposite to where it’s located.

All of the front cameras display what they see on the back and so forth.

It could work.[/quote]

Something like that had already been done.

As a matter of fact, It was done in Japan of 2004, and in the form of a poncho like coat. It was flawed, obviously, and the little microcameras that would present the front and back images werent sophisticated enough to produce the complex colors and details to at all provide stealth. The colors came out all green and marble like, and light projected way too bright.

Im glad they are upgrading. Its only a matter of time. If only they could cure diabetes or cancer after this.

I have one hanging in my closet but I cannot find it.

Here is the abstract of the research conducted by David Schurig at Duke. Becoming impervious to microwave radiation is much simpler than becoming “invisible” to lightwaves in the visible spectrum. The Navy was working on something similar during WWII.

Cummer SA, Popa BI, Schurig D, Smith DR, Pendry J.
Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27708, USA.

Pendry have reported electromagnetically anisotropic and inhomogeneous shells that, in theory, completely shield an interior structure of arbitrary size from electromagnetic fields without perturbing the external fields. Neither the coordinate transformation-based analytical formulation nor the supporting ray-tracing simulation indicate how material perturbations and full-wave effects might affect the solution. We report fully electromagnetic simulations of the cylindrical version of this cloaking structure using ideal and nonideal (but physically realizable) electromagnetic parameters that show that the low-reflection and power-flow bending properties of the electromagnetic cloaking structure are not especially sensitive to modest permittivity and permeability variations. The cloaking performance degrades smoothly with increasing loss, and effective low-reflection shielding can be achieved with a cylindrical shell composed of an eight- (homogeneous) layer approximation of the ideal continuous medium. An imperfect but simpler version of the cloaking material is derived and is shown to reproduce the ray bending of the ideal material in a manner that may be easier to experimentally realize.

PMID: 17025778 [PubMed - in process]

Womans shower here I come!

[quote]PGA200X wrote:
Womans shower here I come![/quote]

Excellent!

I just read this too. Very cool!

I chuckled out lout at this response!

I’m gonna rob banks too!

That ought to put the Chinese/Russians on edge. The Americans build attack jets like the Klingons. That will be its first use. We’ll figure out a peaceful use later…

[quote]PGA200X wrote:
Womans shower here I come![/quote]

That it has military use is simple to imagine, but I was wondering about the civil application of it…thanks

[quote]Yo Momma wrote:
Here is the abstract of the research conducted by David Schurig at Duke. Becoming impervious to microwave radiation is much simpler than becoming “invisible” to lightwaves in the visible spectrum. The Navy was working on something similar during WWII.

[/quote]

The military has been working on this continuously since WWII and is much farther along than these guys. But you didn’t hear that from me.

DB

I would rather they work on perfecting xray specs.

DB

[quote]Zap Branigan wrote:
I have one hanging in my closet but I cannot find it.[/quote]

Hah! No way!

[quote]Zap Branigan wrote:
I have one hanging in my closet but I cannot find it.[/quote]

Maybe you should come out of the closet and look for it from the outside.