metamaterials

Just because most black holes are solar-system-sized maelstroms with reality-warping gravitational pulls doesn't mean you can't have one in your pocket! That's right, just in time for the holidays comes the pocket black hole. Designed by scientists at the Southeast University in Nanjing, China, this eight-and-a-half-inch-wide disk absorbs all the electromagnetic radiation you throw at it, with none of the pesky time dilation and Hawking radiation associated with the larger, interstellar versions.

For all the visualizations, artist's renderings and animations of the birth of our universe, it is still exceedingly hard to imagine the Big Bang: from nothing emerges everything.

But what if you could create a big bang on a lab bench -- make a model of the universe's emergence. University of Maryland engineering professor Igor Smolyaninov has proposed just that, describing the opportunity to create a "toy big bang" using precisely designed metamaterials that are mathematically analogous to certain conditions of the real-world big bang.

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