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, ...

Researchers have developed a 'coloring-by-shrinking' method to print arbitrary 3D microscopic objects exhibiting structural colors. The design consisted of woodpile photonic crystals with varying ...

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 ...