November 26, 2025 - Come prepare a meal with the fifth and sixth graders of Pacific Elementary, in Davenport, California, where the district attracts students just for the lunch. Far too often, ...

In the fall of 2000, as the first dot-com bubble was bursting, the Guatemalan computer scientist Luis von Ahn attended a talk, at Carnegie Mellon, about ten problems that Yahoo couldn’t solve. Von Ahn ...