Scientists call their discovery a 'perfect' invisibility cloak

Functional "cloaking" devices have been around since 2006, but they're far from perfect. All attempts so far have failed to avoid at least some partial light and reflectivity — what has resulted in an unconvincing effect. Part of the problem is finding a way to hide objects in wavelengths longer than the human eye… » 11/12/12 8:00am 11/12/12 8:00am

Scientists discover weird material that expands when poked


Using a new method of observing microscopic changes in a material's behavior, scientists have spotted very cool properties in a water-methanol compound called methanol monohydrate. These crystals get smaller when warmed, but when you apply pressure to them (i.e., poke them), they expand outwards. This material is… » 2/11/11 11:05am 2/11/11 11:05am

New Adhesive Microfiber Gloves Let You Scale Glass Walls

Soon we'll have special gloves and shoes that allow us to climb smooth, vertical surfaces — and even walk across ceilings. A team of researchers at UC Berkeley has created a plastic microfiber that imitates the "stickiness" of gecko feet, which are covered in tiny hairs that attach to smooth surfaces. Already, the… » 1/31/08 7:30am 1/31/08 7:30am

Atomic Structures Captured by New, Ultra-Powerful Microscope

This image shows the precise arrangement of atoms that form a bridge between two gold crystals. Until yesterday, you would not have been able to see that image — at least, not with such clarity and color. It's the product one of the world's most powerful transmission electron microscopes, installed yesterday at UC… » 1/23/08 7:20am 1/23/08 7:20am