President Obama Hosts White House Science Fair

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U.S. President Barack Obama tries the bicycle-powered emergency... Photo d'actualitéAccident et désastre,Barack Obama,Bestof,Création humaine,Gare,Gouvernement,Horizontal,Jardin Est,Politique,Président des États-Unis,Thème,Topix,Washington DC,White House Science Fair,États-UnisPhotographer Collection: Getty Images News 2013 Getty ImagesWASHINGTON, DC - APRIL 22: (AFP OUT) U.S. President Barack Obama tries the bicycle-powered emergency water-sanitation station, created by high schoolers Payton Karr and Kiona Elliot from Oakland Park, Florida in the East Garden of the White House, during the White House Science Fair April 22, 2013 in Washington, DC. The White House Science Fair celebrates the student winners of a broad range of science, technology, engineering and math (STEM) competitions from across the country. The first White House Science Fair was held in late 2010. (Photo by Aude Guerrucci-Pool/Getty Images)