Tired of letting onscreen avatars do all the heavy lifting? Sony's new Eyetoy accessory makes you the star of the game. Essentially a webcam gussied up with some effective motion-tracking software, the Eyetoy displays your picture on the screen where you can interact with objects using body movements. The unit comes with a package of surprisingly compelling minigames so you can whup your friends at such activities as soccer ball kicking, UFO juggling and the inevitable boxing and kung fu.
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.


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