Light travels at different speeds based on the medium it passes through. For example, in a vacuum, it travels at 3.0 × 10^8 m/s in a straight line. But when directed towards glass, air, diamond, water ...

Given that vintage glass is not only holding its value but getting more expensive, digitally recreating some of that classic look digitally is a sound option. It also comes with an undo button. When ...

A hot potato: Assassin's Creed Mirage has been getting quite good, and in some cases, great, reviews from critics and fans. But there's one element that pretty much everyone hates: its inability to ...

Not an aberration: schematic drawing of the metalens (left), which is made of tiny titanium waveguides. The drawing on the right is of a single waveguide. (Courtesy Boubacar Kanté) A new type of ...