PhysicsThe weird rules of temperature get even stranger in the quantum realm Can a single particle have a temperature? It may seem impossible with our standard understanding of temperature, but columnist Jacklin Kwan finds that it’s not exactly ruled out in the quantum realm Comment
HumansNew Scientist’s guide to the 21 best ideas of the 21st century A quarter of a century in, this is our definitive pick of the ideas in science and technology that are already transforming the world Features