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View Full Version : One Step Closer to Real Life Warder Cloaks


Davian93
08-11-2008, 09:31 AM
http://www.cnn.com/2008/TECH/science/08/11/invisibility.cloak.ap/index.html

I believe we posted a thread about the 2D one a couple years back...well they've improved it again and its getting pretty close to reality.

Fancloth here we come!

Gilshalos Sedai
08-11-2008, 09:33 AM
Cloaking devices are next!

Davian93
08-11-2008, 09:35 AM
You gotta wonder how much of its creation has been effected by Star Trek and other such things. I mean SciFi has to have a huge influence on this type of research if even the only thing it did was put the idea out there...on the cloaks...there's gotta be a WoT fanfreak on the research team.

Brita
08-11-2008, 09:53 AM
Not that I want to be a party pooper- but take a good look at the shadows of the three guys walking. The picture has been altered.

Hopper
08-11-2008, 10:38 AM
Maybe it's just me, but when I hear about see through clothing, that's not what I'm hoping for.

Gilshalos Sedai
08-11-2008, 10:45 AM
That's because you're hoping for this (http://www.snopes.com/photos/risque/skirts.asp).

Hopper
08-11-2008, 10:48 AM
That's because you're hoping for this (http://www.snopes.com/photos/risque/skirts.asp).

It would be inappropriate for me to post pics of what I'm hoping for. :)

irerancincpkc
08-11-2008, 10:51 AM
Not that I want to be a party pooper- but take a good look at the shadows of the three guys walking. The picture has been altered.
Yeah, I can sorta see what you're talking about...

Brita
08-11-2008, 07:34 PM
Interesting...now the picture isn't part of the story. Maybe someone called their bluff.

I'm not saying the cloak doesn't work- but picture was definitely fabricated. Long shadows fell sharply to the left, except the man on the far left, his shadow would fall outside the cloak outline, but mysteriously it isn't there at all. :rolleyes:

Ozymandias
08-11-2008, 10:49 PM
Firstly... Warder cloaks are old news. I saw a History Channel program on military fabric which basically can reflect the environment its in a few years ago. Which means that the technology to do it is at least a decade old (military tech always gets released much later than its creation or conception date).

This is pretty cool. Military R&D is the one area the United States has a massive advantage in over every other country in the world. Technology is basically the only thing we produce at this point. And grain.

I'm waiting for streith. Then I'll open a massage parlor, give free massages to get everyone relaxed, and wait for the material to turn transparent...

Davian93
08-12-2008, 07:21 AM
Oh I know that Ozy...this is news of an update in the technology...I'm sure the stuff at DARPA (feel free to google) is much more advanced than this.

Yuri33
08-12-2008, 05:37 PM
This is why I never use CNN (or the AP) for my science news.

The metamaterials the CNN article is referring to will have no impact on possible cloaking technology. The researchers were able to achieve negative refractive index on a (barely) 3D object, which represents a significant achievement, but that still doesn't address the absorption and reflection problems. The material these guys made was ~5 microns thick, and it still absorbed (and subsequently reflected) 35% of incident light. Under ideal conditions, they might be able to get that down to ~6% (for 1 micron thick material), but that's still greater than regular glass, which reflects 4% of light. In other words, any cloak made of this stuff (if you can manage to make it as thin as 1 micron) is going to appear real shiny, the way glass can appear shiny. Good luck hiding behind that :)

This research has more immediate impact in other areas, like microscopy at the subcellular and perhaps molecular level.

For a more complete review of the findings from Berkeley, read this (http://arstechnica.com/news.ars/post/20080811-meta-material-does-not-render-anything-invisible.html).