TechnologySleep and dreaming: Slumber at the flick of a switch Wouldn't it be wonderful to pack a good night's sleep into fewer hours? Technology has the answer – and it could treat depression and even extend our lives too Features
HumansThe science of Sherlock Holmes The ace detective continues to enthrall us, as two new books, The Scientific Sherlock Holmes by James O'Brien and Mastermind by Maria Konnikova, show CultureLab