PhysicsSchrödinger's cat caught on quantum film The patron animal of quantum theory poses for a unique portrait in which the camera and the sitter don't share a single photon – except by entanglement Regulars
TechnologyColour-changing metal to yield thin, flexible displays Nanoscale sheets of a unique alloy can take on different hues with the flick of a switch, offering a way to make full-colour displays for wearable computers News