A prototype battery-powered plane, called Greased Lightning or GL-10 is pictured flying at NASA's Langley Research Center in this undated handout photo obtained by Reuters May 1, 2015. The plane, which has 10 engines and can take off like a helicopter and fly efficiently like an aircraft, is currently in the design and testing phase. (Photo by Reuters/NASA)

A copy of part of the Dead Sea Scrolls is displayed at the “Dead Sea Scrolls: Life and Faith in Biblical Times” exhibition at Discovery Times Square on December 16, 2011 in New York City. (Photo by Spencer Platt/Getty Images)

An attendee tries Acton's RocketSkates at the 2015 International CES at the Sands Expo and Convention Center on January 6, 2015 in Las Vegas, Nevada. The motorized skates that you strap to your shoes are powered by Lithium Ion batteries and can go up to 12 mph. (Photo by Ethan Miller/Getty Images)

A dog rests on a buffalo near Ravi River in Lahore, Pakistan, on Febuary 4, 2013. (Photo by Mohsin Raza/Reuters)

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Racegoers react as they leave after the second day of the Grand National meeting at Aintree, northern England April 5, 2013. (Photo by Nigel Roddis/Reuters)

ATTENTION: VISUAL COVERAGE OF SCENES OF INJURY AND DEATH

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“Wave Gotik Treffen 2010 am Eingang des AgraParks / in der Innenstadt von Leipzig”. (Photo by Danny Sotzny)

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“Vull sortir a la superficie, i ... respirar”. (Photo by Véronique Carreño Andreu)

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A monkey runs away with a piece of bread in it's mouth at a park in a suburb of Kuala Lumpur, Malaysia, Monday, March 4, 2013. (Photo by Mark Baker/AP Photo)

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