Simon Sinek: How great leaders inspire action
Simon Sinek has a simple but powerful model for inspirational leadership all starting with a golden circle and the question “Why?” His examples include Apple, Martin Luther King, and the Wright brothers — and as a counterpoint Tivo, which (until a recent court victory that tripled its stock price) appeared to be struggling.

Elizabeth Pisani: Sex, drugs and HIV – let’s get rational
Armed with bracing logic, wit and her “public-health nerd” glasses, Elizabeth Pisani reveals the myriad of inconsistencies in today’s political systems that prevent our dollars from effectively fighting the spread of HIV. Her research with at-risk populations — from junkies in prison to sex workers on the street in Cambodia — demonstrates the sometimes counter-intuitive measures that could stall the spread of this devastating disease.

Dennis Hong: My 7 species of robot
At TEDxNASA, Dennis Hong introduces seven award-winnning, all-terrain robots — like the humanoid, soccer-playing DARwIn and the cliff-gripping CLIMBeR — all built by his team at RoMeLa, Virginia Tech. Watch to the end to hear the five creative secrets to his lab’s incredible technical success.


