Nick Fetty | May 21, 2015 This week students, researchers, and others on Iowa State University's "Team PrISUm" solar car are participating in a five-day tour across the state. Team PrISUm's SunRun began Monday with a stop in Denison, the hometown of former Iowa Hawkeye lineman Brandon Scherff who was the fifth overall selection in last month's NFL Draft. On…