Charlie Kirk's widow, Erika Kirk, is now raging about the cameras which have broken down her behavior following her husband's ...

Kevlar has met its match. For decades, it has been the gold standard for impact protection, from bulletproof vests to armored vehicles, and is still widely used. But scientists have now developed a ...

Consider how long your runs are and what gear you need to carry. For one- to two-hour runs, 2 liters is usually enough. For ...