Ellen Jorgensen talks about Genspace, a do-it-yourself genetics lab which she co-founded, and other labs like it around the world.

Massimo Banzi discusses the company he co-founded, Arduino, which makes affordable open-source microcontrollers for interactive projects, from art installations to an automatic plant waterer.

Short video of an eighth-grade South Korean student demonstrating the functioning bow he made.

TED Fellow Catarina Mota is fascinated with shape-memory materials and explains her interest.

TED Fellows Director Tom Rielly gives the crowd updates on various TED Fellows and recognizes this year's class.

Chemist Lee Cronin returns to TEDGlobal to discuss a new idea: 3D-printing molecules.

Matt Mills and Tamara Roukaerts exhibit their company's augmented-reality technology for mobile phones.

British sculptor Antony Gormley discusses his work that engages with the notion of space.

Kathy Hinde is a musician and inventor whose latest musical instrument is played by birds.

Jamie Drummond, Executive Director of ONE, evaluates progress on the Millenium Development Goals penned in 2000.

Video of dancer Lil' Buck and internationally-renowned cellist Yo-Yo Ma performing "The Dying Swan" at 2011's Vail International Dance Festival, followed by the session's title animation, created by Justin Blyth, and remarks by Chris Anderson