A laser is usually constructed from two basic elements: a material that provides optical gain through stimulated emission and an optical cavity that partially traps the light. When the total gain in ...

A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...

Smart rings are unique in the world of fitness trackers. Instead of wrist-worn devices with large displays and flexible straps, smart rings are more rigid bands made for wear on a finger. As a ...

AI-generated images are becoming increasingly realistic, but spotting these obvious clues can help you identify the artificial creations. I’ve been writing about consumer technology and video games ...