Liquids and solutions are complex environments—think, for example, of sugar dissolving in water, where each sugar molecule ...

Most humans like games. But what are games, exactly? Not in a philosophical sense, but in the sense of “what exactly are their worky bits, so we know how to make them?” [Raph Koster] ...

Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think.