The importance of light in our daily lives is often underestimated. Light wakes us, guides us, and nourishes us. It can motivate and make you feel energized or create a cozy feel and help you relax.

Do you know what it means to be smart? It's a more complicated question than it may seem. There are several ways to think about intelligence—as the well-known "book-vs.-street smart" binary ...

Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to books covering a wide spectrum ranging from Apple devices and cameras to photo editing software and ...