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A Step Toward an Invisibility Cloak
Technology Review has a writeup on the latest advance in the lab towards an invisibility cloak made of metamaterials, described this week in Science. We've been following this technology since the beginning. The breakthrough is software that lets researchers design materials that are both low-loss and wideband. "The cloak that the researchers built works with wavelengths of light ranging from about 1 to 18 gigahertz — a swath as broad as the visible spectrum. No one has yet made a cloaking device that works in the visible spectrum, and those metamaterials that have been fabricated tend to work only with narrow bands of light. But a cloak that made an object invisible to light of only one color would not be of much use. Similarly, a cloaking device can't afford to be lossy: if it lets just a little bit of light reflect off the object it's supposed to cloak, it's no longer effective. The cloak that Smith built is very low loss, successfully rerouting almost all the light that hits it."
Pics or it didn't happen.
Now I can see what happens inside the Girls' dorm!
Giggity-giggity-goo.
"I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
Why would that be no longer effective? If the cloak reroutes 90% of the light, then you're left with 10% opacity, right? Sure, something that translucent would be very difficult to see, especially from a distance.
The Predator still got his ass shot up good with that hand-held vulcan gun, because the soldier saw the 10% of light that he couldn't cloak.
It is dangerous to be right when the government is wrong.
It's not broke... it's cloaked!
"Now [that] this is becoming a more feasible technology, we will start to see a lot more of it."
Heh, i thought the goal was to see a lot less of it :)
Patents Drive Free Software as Hurricanes Drive Construction Industry
I look forward to the photo of the prototype.
Why would that be no longer effective? If the cloak reroutes 90% of the light, then you're left with 10% opacity, right? Sure, something that translucent would be very difficult to see, especially from a distance.
The Predator still got his ass shot up good with that hand-held vulcan gun, because the soldier saw the 10% of light that he couldn't cloak.
Yes, but if you look at it from a D&D point of view, you get a 90% miss chance, which is a game-breaking advantage.
Not for those of us who don't live in a vacuum, you insensitive clod!
You must be thinking of the 16k visual spectrum. This is referring to the Spectrum 128k.
Yes, but if you look at it from a D&D point of view, you get a 90% miss chance, which is a game-breaking advantage.
I put on my robe and wizard hat.
Lock the wife and the dog in the boot of the car.
Return one hour later.
Who's happy to see you?
Why would that be no longer effective? If the cloak reroutes 90% of the light, then you're left with 10% opacity, right? Sure, something that translucent would be very difficult to see, especially from a distance.
The Predator still got his ass shot up good with that hand-held vulcan gun, because the soldier saw the 10% of light that he couldn't cloak.
That's what you get for pissing off Jesse "the future Governor of Minnesota" Ventura.
Cloaking device or not.
You can't take the sky from me...
Not for those of us who don't live in a vacuum, you insensitive clod!
C is still constant. C is the speed of light _in_a_vacuum_ not the speed of light in your parent's basement. And by the way I am a clod, you insensitive pedantic.
It is dangerous to be right when the government is wrong.
Are you suggesting there might be a flaw in one of the articles posted on Slashdot?
...and I ain't an engineer.
I bet you've a schoolteacher.
It is dangerous to be right when the government is wrong.
Yeah, but that link only rerouted 90% of the light. Here, try this one:
Haida Manga
Yeah, I live in a Bose-Einstein condensate, you insensitive clod!
I'm the Devil the Windows users warned you about.
I've always wondered if "robe and wizard hat" is code for "short dress and high heels". The things geeks will call their fetishes in order to stave off rejection from women.
I fail to see what is so funny about that.
Mit der Dummheit kämpfen Götter selbst vergebens
I put on my cloak and tinfoil hat.
There, fixed that for you. ;)
ah, Slashdot. :D
D&D rule nitpicking is "informative".
I listen to both RIAA and non-RIAA stuff if I like the music, tangential business/politics nonwithstanding.
Seeing "cockpit" hyphenated like that led to some disturbing mental images.