Popular Mechanics Backyard Genius Contest

Calling all inventors! Have you built a one-of-a-kind project in your backyard or garage? Popular Mechanics is accepting entries to find the next Backyard Genius. Projects can be anything from a handcrafted treehouse to a personal robot to an electric go-kart (but you must have already built it!). The best reader projects will be featured in a magazine story this September. Submit a video response of your project by April 19, 2009!

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