Wearables
fromEngadget
2 days agoiPolish brings color-changing press-on smart nails to CES
Press-on acrylic nails from iPolish change color electrochemically via a wand connected to a phone, offering 400 colors, reusable and affordable.
A new reflective display could shatter those restrictions with resolutions beyond the limit of human perception. In a recent study in Nature, scientists describe a reflective retina e-paper that can display color video on screens smaller than two square millimeters across. The researchers used nanoparticles whose size and spacing affect how light is scattered, tuning them to create red, green and blue subpixels.