Environment60 per cent of world’s rivers stop flowing for at least one day a year The first detailed global map of river flow shows that more than half the world’s rivers stop flowing for at least one day a year and many could run dry if climate change isn't addressed ¿ìè¶ÌÊÓÆµ
PhysicsArmoured liquid marbles connected together in a chain 1.7 metres long Liquid marbles that can be picked up and handled have now been linked together in a 1.7-metre-long chain – and could be used as chemical microreactors ¿ìè¶ÌÊÓÆµ