Amazon said it has made a “fundamental leap forward in robotics” after developing a robot with a sense of touch that will be capable of grabbing about three-quarters of the items in its vast warehouses.Vulcan – which launches at the US firm’s “Delivering the Future” event in Dortmund, Germany, on Wednesday and is to be deployed around the world in the next few years – is designed to help humans sort items for storage and then prepare them for delivery as the latest in a suite of robots which hav...