TechnologyUber and Lyft operating in US cities linked to rises in car ownership When ride-sharing companies including Uber and Lyft begin operating in a city, there is a slight increase in car ownership on average, a study of US urban areas suggests News
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 News