(Nanowerk News) For the first time, researchers have used liquid crystals to create a flat magic window — a transparent device that produces a hidden image when light shines on it. The technology ...

Researchers have used liquid crystals to create a flat magic window -- a transparent device that produces a hidden image when light shines on it. The process for creating transparent liquid crystal ...

WASHINGTON — For the first time, researchers have used liquid crystals to create a flat magic window — a transparent device that produces a hidden image when light shines on it. The technology ...

Windows and mirrors embedded with liquid crystals can hide images that appear only when the right kind of light is shined on them. The technique, inspired by a 4000-year-old trick for building “magic ...