Ashton Stark stands next to his 1972 Volkswagen Beetle, which he converted into an electric car. Courtesy Noel Stark hide caption

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Pelicans rest on an oil retention boom near Grand Isle, La. Mario Tama/Getty Images hide caption

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Staff members at the Army Experience Center in Philadelphia demonstrate the Humvee interactive simulator in 2009. Matt Rourke/AP hide caption

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When you think of Wookiees, you think of Chewy, don't you? Ethan Miller/Getty Images North America hide caption

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Smart bandages, including this one from Corventis, can transmit cardiac data in real time from a patient's body to a doctor. Courtesy of Mark Dastrup hide caption

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