Tyler Hessler fills a rocket with water

July 18, 2012 | 9:44 p.m. CDT
Tyler Hessler, 17, of Branson, fills his group's rocket with water on Wednesday on the Francis Quadrangle at MU. When water is added to the 2-liter bottles, they can withstand greater degrees of pressure, propelling the rockets 30 feet or higher.

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