Invisibility Cloak Created In 3-D
An anonymous reader writes "Scientists have created the first device to render an object invisible in three dimensions. The 'cloak,' described in the journal Science (abstract; full text requires login), hid an object from detection using light of wavelengths close to those that are visible to humans. Previous devices have been able to hide objects from light travelling in only one direction; viewed from any other angle, the object would remain visible. This is a very early but significant step towards a true invisibility cloak." The "object" hidden in this work was a bump one micrometer high. The light used was just longer than the wavelengths our eyes detect. To get a visible-light cloak, the features of the cloaking metamaterial would need to be reduced in size from 300 nm to 10 nm.
I don't mean to complain, but it would be nice to have a picture.
Even if the object is invisible...
Oh man, wait 'till the Romulans hear about this.
Nothing to see here, move along ...
'If Christ had tweeted the sermon on the mount, it might have lasted until nightfall.' - John Perry Barlow
"Ugh, what was THAT noise?"
A factor 30 in wavelength difference is not "just longer" than visible light nor "close to" it. Still, impressive work. And surely, they'll get closer and closer. But cloaking a micrometer high bump is still a few pathways away from Klingon tech.
"Ha! Invisibility Cloak? I'll believe it when I see it!"
For some reason Locke comes to mind...
Yes, invisibility is "cool", and I wouldn't mind an invisibility cloak for myself. But I can't immediately think of who would benefit the general public by having invisibility. Especially among the military, the police, criminals or terrorists (all of them sometimes interchangeable).
What practical use does invisibility have, other than as a weapon?
We are all God's parents.
something that will be able to hide goatse.
... so far not even a 3d cloak could hide her!
Scientists have made an invisibility cloak! Unfortunately it only works on invisible bumps...
I seem to have misplaced my 1 micrometer bump. I was sure i put it over here.
You have to be wearing special glasses to not see the cloak in 3D. Everyone else just gets a headache.
This isn't really the kind of invisibility cloak in SciFi or fantasy, it's fundamentally different.
This is essentially you're bending the light around the object, so you don't see it's there. The way it's being done however, has the inherent problem of being limited in angle. That is, theoretically it could be hidden from 180 degrees, but anything beyond that there would be at least visible distortion. You could hide a feature on a surface, but you can't hide the surface like this.
all it really took to accomplish "Invisibility Cloak Created In 3D", was to redefine the terms "invisibility", "cloak" and "created" in new, creative ways that fit what they actually did.
I'm wearing an invisibility cloak right now and im right beside you.
... is practically invisible anyways.
FANTASTIC achievement now we can make virtual stuff invisible
I'll believe it when I see it.
Actually, the way I remember it, it never was Klingon tech as such. The Klingons managed to buy the technology from the Romulans, in exchange for a heck of a lot of D-7 battlecruisers.
(Or in RL terms when they first needed a Romulan Bird Of Prey, the model wasn't ready on time, so they used a Klingon Battlecruiser and slapped on a makeshift explanation of why the Romulans are flying Klingon vessels.)
A polar bear is a cartesian bear after a coordinate transform.
300 nm to 10 nm, while claiming "close" in the summary. Flamebait. Simple.
Yes, but will the Federation reverse it's stance on the use of cloaking technology?
This seems to be a fantasy riding on the broomstick of a certain young English wizard (to name a few). In the age of modern technology, one needs to not only make something "invisible" in the realm of visible wavelengths -- one also has to hide its radar signature, its infrared signature (good luck doing that if you've got any significant computing capabilities on board), its magnetic signature and presumably its mass (gravimetric) signature.
If you can't do all of those things you are only "undetectable" to primitive (read "nontechnological") humans and not any relatively simplistic robots, sensor assisted humans or airborne drones.
yes
You poor sods! Get your heads out of all those nuculyer "wuessels", already!
Think!
I mean, a vertical central width of regular cloth and two lateral widths of 'enhanced' transparent-field cloth. Voilá ! Instant "slimness". What woman could resist that ?
And, if you vertically modulate it, to vary the illusion of horizontal extent... implying contours...
And, yeah. It would be better that those bedsheets they use to try and preserve some dignity at those horrendous accident scenes.
The Islamic version, for women, is surely going to be a success. All sorts of options, from fullblack zero-albedo bubble (portable ac unit not included), to shimmering semi-transparent glittering haze. The fully transparent version might involve a complication or two.
I'll ask my cousin to inquire for a good place to set up a garment factory. Maybe somewhere not too far from the Philadelphia shipyards. Though Montauk might also be really convenient. ;p
The "Invisibility cloak" news stories from years ago, maybe 2005, but back then those guys were nearly finished with theirs and had accompanying photos of a man wearing one in front of objects to show it off.
So what happened?
Motoko: "Is that a fact?"
*KRAKRAKRAK* *beautifully drawn head asplosion*
Aide: "Out the window! Shoot!"
(Embassy mooks fail hit roll)
Aide: "Thermoptic camouflage..."
(Cue intro)
Emotions! In your brain!
Ok, they are claiming that they made an object invisible by trying to look at it with light whose wavelength is too long to resolve the object in the first place? I must be missing something here.