With its bright colors, easy-to-learn rules and familiar music, the video game Tetris has endured as a pop culture icon over the past 40 years. Many people, like me, have been playing the game for ...

Changing light's polarization can reverse the structure of a patterned light field, opening a new way to control geometry and information in optics. (Nanowerk Spotlight) Light can be bent, focused, or ...