invisibility

Disaster film director Roland Emmerich must be quaking in his boots knowing that his movies may soon have to be a little less destructive. With the invention of an "invisibility cloak" for buildings, earthquake damage could be significantly minimized. Using a series of concentric rings in the foundation of a building, this "cloak" directs seismic waves around a building, rather than destructively against and through it.

Ouch, Harry Potter. Your new movie doesn't premiere for two months, yet real scientists are already one-upping you

Researchers at Lawrence Berkeley National Laboratory and Cornell University both said last week they've designed invisibility cloaks that work in the visible-light spectrum. OK, so they're not big enough to cover a budding young wizard sneaking around at night, but hey, it's a step.

It's like something out of a science fiction novel or a Harry Potter book. Engineers from Duke University have constructed a device that can "cloak" items placed on a mirror surface.

First designed in 2006, the new version of the device is a more sophisticated and complicated design that can cloak a wider variety of waves.

Ever wished you could have Harry Potter's invisibility cloak? Science, not magic, could make that a reality. Researchers at the University of California at Berkeley have created materials that have the potential to bend light and even redirect it around themselves, cloaking any object behind them. They are metamaterials, materials that gain unusual properties via their structures. While all materials found in nature have a positive refractive index, these man-made metamaterials have a negative one.

Scroll to the bottom of the page for a video simulation of an invisibility-equipped Aston Martin. And for a timeline detailing the history of innovations in the science of invisitbility, click 'View Photos' at left.

WHAT: A way to make objects invisible. The trick is to use metamaterial, a complex hybrid structure of metal and insulator that makes light move around an object like air flowing over an airplane wing. In a process called refraction, these materials interact with light in such a way