TechnologyLeaf-inspired material makes different liquids flow in opposite ways Inspired by a type of spiky evergreen leaf, researchers have come up with a material that forces different fluids to flow in opposite directions – even uphill ¿ìè¶ÌÊÓÆµ
PhysicsWhat putting big things in quantum states can tell us about reality In principle, there should be no limit on how large objects can get and still display quantum behaviour like superpositions. Physicists testing the idea hope to reveal clues about quantum gravity Features