Sō Percussion creates adventurous compositions with new, unconventional instruments. Performing "Music for Wood and Strings" by Bryce Dessner of The National, the quartet plays custom-made dulcimer-like instruments that combine the sound of an electric guitar with the percussionist's toolkit to create a hypnotic effect.

Only one in nine people in the United States gets the care and treatment they need for addiction and substance abuse. A former Director of National Drug Control Policy, Michael Botticelli is working to end this epidemic and treat people with addictions with kindness, compassion and fairness. In a personal, thoughtful talk, he encourages the millions of Americans in recovery today to make their voices heard and confront the stigma associated with substance use disorders.

From packing peanuts to disposable coffee cups, each year the US alone produces some two billion pounds of Styrofoam -- none of which can be recycled. Frustrated by this waste of resources and landfill space, Ashton Cofer and his science fair teammates developed a heating treatment to break down used Styrofoam into something useful. Check out their original design, which won the Scientific American Innovator Award from Google Science Fair.

To make the world work, we need leaders who consider the needs of every man, woman, child and animal on the planet -- not just their own voters. With the Global Vote, an online platform that lets anybody, anywhere in the world vote in the election of any country on earth, policy advisor Simon Anholt hopes to fill the gap between the few people who elect the world's most powerful leaders ... and the rest of us.