Anyone who’s taken language lessons on the Duolingo app is certainly familiar with the Duolingo owl, Duo. If you skip out on lessons, Duo will ping you — crying! — to come back. Over the past few ...

Master tactics in chess are not limited to traditional gameplay, but can also be a powerful ally in competitive titles, especially in the eSports and online chess scene. Want to know more about this ...

Over the last few centuries, behavioral psychologists have documented all kinds of ways of modifying our actions and the actions of various animals. From the famous Skinner boxes to many modern video ...