Though always known for its odd, over-the-top exhibits, CES took the cake this year by featuring a full TV sound studio--inside Sony's already-massive booth. The studio featured the brand-new set design for Jeopardy, the nerd television institution owned by Sony Pictures that was celebrating its 25th season by filming its "Celebrity Jeopardy!" and "Tournament of Champions" editions, which began airing last week.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.