Celebrity guests, zombies, nudity, endearing pop ballads, giant squids-our Second Life concert featuring Jonathan Coulton had it all. Relive all the virtual memories of a night of virtual rock in this gallery of highlights. Or see what you missed spending your Thursday night in the "real" world. Suckers!
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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.