Invisibility cloak one step closer, scientists say

[Creder]

its impossible to follow any thread in this forum unless its india vs pakistan orgy

 

[K^se]

Ummm, nice too see technological advances in our country by our citizens..What does this have to with Pakistan and China, or "witch hunt on muslims"?

-I really hate people who open up threads then go away from the topic, to discuss religion,political economic affairs.. We already know whats happening, you just can't get past the point..

 

[lockh33d]

Ahhh Metamaterials. They bend light so light won't hit and reflect off from the object which is to be camouflaged. There was a similar experiment, a mystery really, that was done during WWII by bending gravitational field lines in order to make a destroyer obscure. I advice interested people to read the following experiment:

The Philadelphia Experiment

 

[AZADPAKISTAN2009]

I dont get this forum mayn :S...how do you go from bending the light around the objects to witch-hunts in just three posts

LOL

 

[Fighter488]

Invisibility cloak now a 3D reality ​

Washington: The magical cloak that featured in the Harry Potter series has become closer to reality, thanks to German scientists who’ve created a three-dimensional “invisibility cloak” that can hide objects by bending light waves.
Researchers at Germany’s Karlsruhe Institute of Technology report they were able to cloak a tiny bump in a layer of gold, preventing its detection at nearly visible infrared frequencies.
Their cloaking device also worked in three dimensions, while previously developed cloaks worked in two dimensions, lead researcher Tolga Ergin said.
The cloak is a structure of crystals with air spaces in between, sort of like a woodpile, that bends light, hiding the bump in the gold later beneath, the researchers reported in Thursday’s online edition of the journal Science.
In this case, the bump was tiny, a mere 0.00004 inch high and 0.0005 inch across, so that a magnifying lens was needed to see it.
“In principle, the cloak design is completely scalable; there is no limit to it,” Ergin said. But, he added, developing a cloak to hide something takes a long time, “so cloaking larger items with that technology is not really feasible.”
“Other fabrication techniques, though, might lead to larger cloaks,” he added. The value of the finding, Ergin said, “is that we learn more about the concepts of transformation optics, and that we have made a first step in producing 3-D structures in that field.”
“Invisibility cloaks are a beautiful and fascinating benchmark for the field of transformation optics, and it is very seldom that one can foretell what practical applications might arise out of a field of fundamental research,” Ergin added.
In earlier research, a team led by David Schurig at Duke University developed a way to cloak objects in two dimensions from microwaves. Like light and radar waves, microwaves usually bounce off objects, making them visible to instruments and creating a shadow that can be detected. AGENCIES

 

[kangyuta]

He is clear in what He asks and clear in what He offers. The choice is up