James Burchfield is a human beatbox. Using only his mouth, tongue, throat and vocal cords, he performs heavy, layered, club-style jams that seem to come from real drum machines and lusciously scratched turntables.
Amy Smith designs cheap, practical fixes for tough problems in developing countries. Among her many accomplishments, the MIT engineer received a MacArthur "genius" grant in 2004 and was the first woman to win the Lemelson-MIT Prize for turning her ideas into inventions.
Called "the queen of canopy research," Nalini Nadkarni explores the rich, vital world found in the tops of trees. She communicates what she finds to non-scientists -- with the help of poets, preachers and prisoners.
Ray Kurzweil is an engineer who has radically advanced the fields of speech, text and audio technology. He's revered for his dizzying -- yet convincing -- writing on the advance of technology, the limits of biology and the future of the human species.
Rose Goslinga isn’t your typical insurance salesperson. Through the Syngenta Foundation, her team developed insurance solutions to assist small-scale farmers in Africa, to safeguard their crops in case of droughts.