Since its debut in 2016, Overwatch’s roster of heroes has steadily grown to 30, and each one has their own backstory. Jack Morrison, codenamed “Soldier: 76,”…
Schoolchildren exercise in an indoor sports hall. Photograph: UniversalImagesGroup/UIG via Getty Images More than two thirds of parents don’t know how much exercise their child…
How long does it take for bacteria to colonize our skin? Evidently, for ocean bacteria, it takes just 10 minutes of swimming to alter our…