HealthDo potatoes and tomatoes make rheumatoid arthritis worse? Claims that solanine, a toxic compound found in many plants, exacerbates arthritis are a staple of health columns – but there’s no sound science to back this up, finds James Wong Comment
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