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Trevor Taylor, with The Science Museum of Oklahoma, pores liquid nitrogen into a plastic bottle to make it explode during a show at the OPUBCO Pavilion at the Oklahoma State Fair, Tuesday, September 18, 2012. Photo By David McDaniel/The Oklahoman

Trevor Taylor, with The Science Museum of Oklahoma, pores liquid nitrogen into a plastic bottle to make it explode during a show at the OPUBCO Pavilion at the Oklahoma State Fair, Tuesday, September 18, 2012. Photo By David McDaniel/The Oklahoman