http://www.ted.com Nicholas Negroponte talks about how One Laptop per Child is doing, two years in. Speaking at the EG conference while the first XO laptops roll off the production line, he recaps the controversies and recommits to the goals of this far-reaching project.

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Benjamin Zander has two infectious passions: classical music, and helping us all realize our untapped love for it — and by extension, our untapped love for all new possibilities, new experiences, new connections.

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http://www.ted.com Steven Levitt shares data that shows car seats are no more effective than seatbelts in protecting kids from dying in cars. However, during the Q&A, he makes one crucial caveat.

http://www.ted.com Adam Grosser talks about a project to build a refrigerator that works without electricity — to bring the vital tool to villages and clinics worldwide. Tweaking some old technology, he’s come up with a system that works.

http://www.ted.com Insects and animals have evolved some amazing skills — but, as Robert Full notes, many animals are actually over-engineered. The trick is to copy only what’s necessary. He shows how human engineers can learn from animals’ tricks.

http://www.ted.com Artist Chris Jordan shows us an arresting view of what Western culture looks like. His supersized images picture some almost unimaginable statistics — like the astonishing number of paper cups we use every single day.

http://www.ted.com Historian George Dyson tells stories from the birth of the modern computer — from its 16th-century origins to the hilarious notebooks of some early computer engineers.