How About an Invisibility Cloak?

In as few as 18 months, the military may have access to an invisibility cloak that makes the wearer appear invisible. The cloak will be made of "metamaterial," which is made using nanotechnology and can change the direction of electromagnetic radiation.

Because light waves flow around the metamaterial, any object inside of it becomes invisible, similar to water flowing around a smooth rock. Researchers have compared it to opening a hole in space. Along with the obvious stealth military operations such a cloak could be used for, the material could also be used to conceal factories and other eyesores from the countryside.

Nanotechnology is also behind many other exciting inventions, like the world's strongest bulletproof vest and natural bandages. As nanotechnology progresses, it is sure to change our lives ? and health care as we know it.

Science May 26, 2006