The Invincible Invisible
Scientists have taken another step toward the goal of rendering objects invisible using high-tech cloaks that redirect light.
Researchers for the first time demonstrated that a new material can bend visible light the wrong way in three dimensional tests. It builds on research that cloaks objects in the microwave wavelength.
The research, announced today, will be detailed later this week in the journals Nature and Science.
The metamaterial, as it is called, produces what’s known as negative refraction of visible light. That means light is made to travel in the opposite direction from how it normally should bend when passing through a material. A common example is how a pencil will appear to bend upward when half-submerged in a glass of water. In the new work, researchers make the light appear to bend the other way.
Metamaterials are artificially engineered structures that have “extraordinary optical properties that do not exist in nature,” the researchers write in Science. “They can alter the propagation of electromagnetic waves, resulting in negative refraction, subwavelength imaging and cloaking.”
Who wants to be invisible? Scientists say they are a step closer to developing materials that could render people and objects invisible. WHoaaaaaa!! That is totally COOL !
But wait… I wonder what implications these invisible cloaks could give to humans if all things went well. If there are advantages, I am quite there would also be some drawback could also.
Sigh!! Science is really a fascinating subject, each day it amazes me how science can change our life.
And, if ever these cloaks would be a success, I just truly hope they won’t be available in the RTW section… ‘coz it is really creepy to have someone sneaking on you.. 
