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Tribune-Star/Joseph C. Garza
Back to the drawing board: Austen Wohn, front, of Austin, Texas, Arthur Liu of Qingdao, China, and Jacob Rieck, right, of Peoria, carry their experimental watercraft out of the pond at Rose-Hulman Institute of Technology after they participated in the Walk on Water challenge as part of Operation Catapult on Wednesday. The team was able to make the craft float but wasn't able to propel it through the water.

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