SPACE-TIME may not be fundamental. Instead, according to the holographic principle, it emerges from something deeper, like a 3D hologram emerges from a flat surface. The principle says that space ...

Engineers have developed a new way to 3D-print liquid and solid materials together, potentially leading to more dynamic and useful products—from robots to wearable electronic devices.

Got a bunch of home-improvement dreams but you’re not quite sure where to start? Let a free or inexpensive three-dimensional floor plan program be your guide. While making a 3D model is no ...