PhysicsUltracold atoms can work together to shape or steer light When a collection of atoms is cooled to just above absolute zero, they can act as one, and control light through their electrical and magnetic interactions with it 51¶¯Âþ
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 51¶¯Âþ