Emma Bryce: When Mick Ebeling read about a boy in South Sudan who had lost his arms, he set off with a 3D printer to make him a prosthetic limb. Now the project is bringing hope to the country's other 50,000-plus amputees
Using everything from atom-thick graphene to the humble beef tendon, designers are competing to make a next-generation condom that 'significantly enhances pleasure'
Jonathan Freedland: First thoughts: Facebook is making an editorial judgment in allowing head-chopping yet banning breastfeeding. And it is a very bad one
Pete Etchells: A recent briefing from Public Health England warns that too much screen time is causing emotional problems in children. But is it that simple?