When it comes to light, certain types of fabricated materials behave in a radically different manner from ordinary materials like water and glass: they have negative refractive indices, so that light ...

For the first time, physicists have devised a way to make visible light travel in the opposite direction that it normally bends when passing from one material to another, like from air through water ...

Having barely passed high school physics, I surprised myself some time ago when I took on the daunting, thankless task of teaching a lesson about light, prisms and rainbows for a Hanukkah program in ...

Materials that bend light in unnatural ways are often touted as the path to futuristic technologies such as cloaking devices and super-powered lenses. But such materials are hard to make, but ...

Harry Potter fans, do not despair! Invisibility cloaks may be a long shot, but last year physicists demonstrated technology that might someday hide you from radar. Now, two groups of researchers have ...

We are surrounded by waves. tiny vibrational waves transport sound to our ears. Light waves stimulate the retinas of our eyes. Electromagnetic waves bring radio, television and endless streaming ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

The first law of refraction states that the incident rays, refracted rays, and the normal to the interface at the point of incidence, all lie in the same plane. The ratio of the sine of the angle of ...

The Gazette offers audio versions of articles using Instaread. Some words may be mispronounced. Although our eyes usually can't see them, visible light contains all the colors of the rainbow. This ...

The Wordle word of the day on December 25 was prism, a word that feels almost unfairly elegant for something so relentlessly honest. A prism exists to intervene between appearance and understanding, ...