PhysicsReliving five eureka moments lost in history Water doesn't just boil at 100 °C and chemistry owes a lot to alchemy: recreating long-forgotten experiments provides surprising insights into today's science Features
TechnologyComputer mind meld gives voice to man after a stroke A man left locked-in after a stroke has found his voice via a brain-computer interface, the first stroke patient to master the device 51¶¯Âþ