In this undated photo supplied by Ravi Naiknaware, Anushka Naiknaware works at her home in Beaverton, Ore, developing and testing a bandage that can tell medical workers when it's time for the dressing to be changed.  Naiknaware, 13,  finished in the top eight in an international science contest run by Google, won a $15,000 scholarship, a free trip to the Lego world headquarters in Denmark and a year's worth of entrepreneurship mentoring from a Lego executive. (Ravi Kaiknaware via AP)
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