Snapchat is insanely powerful. Not only has it changed Facebook (for better or worse), it has popularized the term "vomiting rainbow" and transformed selfies. Just over a year ago, Snapchat introduced ...

Tiny video cameras with multiple ultra-wide lenses capture the entire world around you—all 360 degrees of it. These are the best we've tested. Images, and the devices that capture them, are my focus.

Human development is influenced by, but not entirely determined by, our parents and our genes. Children may have very different personalities, and different strengths and weaknesses, than the ...