HealthWhy there is no such thing as a healthy diet that works for everyone What is good for us to eat varies so much from person to person that a universally wholesome diet is a fiction. Instead, the science of nutrition is hot on the heels of a new recipe for healthy eating Features
PhysicsWe just figured out why shaving soft hair blunts steel razor blades Cutting soft materials like hair can blunt even the sharpest blades surprisingly quickly, and now we know why – offering clues to designing longer-lasting razors ¿ìè¶ÌÊÓÆµ