Knowtex

Photo: James Duncan Davidson Admiral James Stavridis is the Supreme Commander of NATO. He is a proponent of what he calls open-source security. He is looking at 21st century security in a very different way than we've looked at security before.

Salman Khan talks about how and why he created the remarkable Khan Academy, a carefully structured series of educational videos offering complete curricula in math and, now, other subjects.

Brené Brown is an expert on vulnerability who starts off her talk by describing the extraordinary impact of giving a talk in 2010 at TEDxHouston: The Power of Vulnerability.

Peter Weyland has been a magnet for controversy since he announced his intent to build the first convincingly humanoid robotic system by the end of the decade.

This morning onstage, Gary Kovacs of Mozilla announced a fascinating browser add-on for Mozilla: Collusion. It allows you to track who’s tracking you online … and the results are surprising to say the least.

For the first time in the history of the TED Prize, it is being awarded not to an individual, but to an idea.

Benoit Mandelbrot has died, at 85. We’re honored to have had him speak at the first TED, in 1984, and at the most recent TED in Long Beach, where he talked about his life’s work: studying fractals and roughness, and helping the world understand how fractal math underpins both nature and art.