$40K Prize for the Winner of DARPA's Hunt for the Red Balloon
The Defense Advanced Research Projects Agency (DARPA), the research arm of the U.S. military, has been hosting public contests with cash prizes, for the past five years. Previous years have seen challenges such as asking people to build robots that could walk from Los Angeles to Las Vegas (no one managed to do so), but this year, DARPA has a Web 2.0-based trial for contestants.
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