Onstage at TEDGlobal, Péter Fankhauser demonstrates Rezero, a robot that balances on a ball. Designed and built by a group of engineering students, Rezero is the first ballbot made to move quickly and gracefully, and even dance.

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Have any comments or questions about our video editions of IMPO? Or do you have a video you'd like to see featured in one of our deployments? Email me at Rachel.Immel@advantagemedia.com.