We all think that the visible spectrum of light — every color we can see — is represented in the rainbow. But this isn't actually true. When you hold up a crystal prism to a beam of light, you ...

Color perception depends on the surrounding environment. Michael J. Murdoch In a smooth gradient from gray to black, where does black begin? Michael J. Murdoch Hello, curious kids!

Researchers at the College of Design and Engineering (CDE) at the National University of Singapore (NUS) have developed a ...