LifeKew lays on a feast of fruit and veg for eyes and mind Variety is the spice of life at a summer festival of edible plants at Kew Gardens, London: it combines interactive art with the serious matter of food security CultureLab
TechnologySilver nanoparticles provide clean water for $2 a year An aluminium water filter embedded with silver nanoparticles is being tested in India in the hope of reducing waterborne diseases News