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?
Tom Meltzer: From TED talks to online seminars, video channels crammed with inspirational and thought-provoking lectures are educating us on everything from town planning and depression to body language, animal morality and dangers of sugar in just a few minutes. Here is our pick of the best
Deborah Orr: The angry arguments against David Cameron's opt-in filter proposals seem to imply that it's normal to want access to porn, and abnormal not to want access to porn