Chinese researchers have developed the world’s smallest CT scanner, a portable device designed to produce images of tiny fossils and archaeological relics. Built by the Shandong province-based Rayim, the Xtomo-Cube is about the size of a desktop speaker and weighs just 6kg (13.2lbs). “The device can be held in one hand and is the world’s smallest and lightest CT system, earning it the nickname ‘palm-sized CT scanner’,” Liu Baodong, a senior engineer at the Chinese Academy of Sciences and general...