TechnologyTiny battery made from silk hydrogel can run a mouse pacemaker A lithium-ion battery made from three droplets of hydrogel is the smallest soft battery of its kind – and it could be used in biocompatible and biodegradable implants èƵ
TechnologyDocumentary tells the fascinating story of a man wired to hear colour Cyborg: A documentary tells the intriguing story of Neil Harbisson, who wears an antenna to “hear” colour, but it is lacking in depth and should have probed its subject more, says Simon Ings Culture