Inside this reaction vial, spotlit by concentrated sunlight, a piece of black polystyrene from a foam tray breaks down into a recyclable material. Credit: Hanning Jiang. Researchers have developed a process that allows the recycling of an additive in black plastics...
A detailed view of the novel LED device that whose orange and blue wavelengths alternate 19 times per second, resulting in a light that emits a soft white glow. The hand at right is that of ophthalmologist Jay Neitz of the University of Washington School of Medicine....
