Shai Agassi says we need electric cars if we want to impact emission. Ethanol and hydrogen isn’t a good idea due to various challenges and may actually do more harm than good.

You’ve never seen data presented like this. With the drama and urgency of a sportscaster, statistics guru Hans Rosling debunks myths about the so-called “developing world.”

Jeff Han shows off a cheap, scalable multi-touch and pressure-sensitive computer screen interface that may spell the end of point-and-click.

Building sophisticated educational tools out of cheap parts, Johnny Lee demos his cool Wii Remote hacks, which turn the $40 video game controller into a digital whiteboard, a touchscreen and a head-mounted 3-D viewer.

Rives — star of the Bravo special “Ironic Iconic America” — tells a typographical fairy tale that’s short and bittersweet.