In this Jan. 20, 2017 photo, Streamwood High School students work to design a micro generator using wind power to light up areas around homeless shelters, at the school in Streamwood, Ill., Their wind-powered generator idea won the state competition in the Samsung Solve for Tomorrow contest, which encourages teachers and students to solve real-world issues using classroom skills in science, technology, engineering, arts and mathematics. (Brian Hill/Daily Herald, via AP)
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