Left: University of Iowa freshmen Bryan Tanner (from left) and Mandy Gavin, and Matthew Bartusek launch the catpult they designed and built for their Engineering Problem Solving I class Wednesday at the Seamans Center for the Engineering Arts and Sciences. Each team launched two objects and was graded on criteria such as design, distance, and precision.
Left: University of Iowa freshmen Harry Frend (left) and John Tian work on setting up their catapult.
