We’ve known how to cure malaria since the 1600s, so why does the disease still kill hundreds of thousands every year? It’s more than just a problem of medicine, says journalist Sonia Shah. A look into the history of malaria reveals three big-picture challenges to its eradication. Nathan Myhrvold and team's latest inventions -- as brilliant as they are bold -- remind us that the world needs wild creativity to tackle big problems like malaria. And just as that idea sinks in, he rolls out a live demo of a new, mosquito-zapping gizmo you have to see to believe. Here's a playlist selected by Sir Ken Robinson. All the TED Talks are about education. All over the world, there's a growing consensus that our education systems are broken. These educators offer lessons in how we might re-imagine school. What kinds of questions should we start asking to help education? What about, "What color is a mirror?" Or "How much does a video weigh?" Michael Stevens, creator of the popular educational YouTube channel Vsauce, spends his day asking quirky questions like these. In this talk he shows how asking the right -- seemingly silly -- questions can make incredibly effective lessons. In 1969, Buzz Aldrin’s historical step onto the moon leapt mankind into an era of technological possibility. The awesome power of technology was to be used to solve all of our big problems. Fast forward to present day, and what's happened? Are mobile apps all we have to show for ourselves? Journalist Jason Pontin looks closely at the challenges we face to using technology effectively ... for problems that really matter.