Three-dimensional printing has come a long way since the first 'rapid prototyping' patent was rejected in 1980. We've evolved from basic designs to a wide range of highly-customizable objects. Still, ...

Imagine you’re in IKEA, looking for a plastic kitchen stool. You find one, but—darn—it’s turquoise, which just doesn’t match your home color scheme. No problem. You tell a salesperson, who pushes a ...

How we interact with objects in the world often depends on what colors we perceive them to have, and on how those perceived colors accord with what we know to be the normal or 'canonical' colors of ...