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 51¶¯Âþ
The secret to keeping beetroot a beautiful red when you bake it Beetroot can lose its lovely hues when baked. The trick to stopping that is to understand the chemistry of the pigments that give it its vibrant colour, says Sam WongRegulars