Recently, I posted a piece on “5 Films That Require Reflective Thought,” recommending some films for individuals keeping their social distance at home, who may have exhausted many of their ...

Researchers developed an ultra-thin film that can create a detailed 3D image that is viewable under normal illumination without any special reading devices. A schematic of the process is shown in (a).

Many areas around the world have been locked down for a while now due to COVID-19. Though restrictions have eased in various places, there remain many who would prefer to be safe than sorry—choosing ...