EVANSTON — Every quarter for their DTC projects, groups of McCormick students design various novel devices, from prosthetic arms to penguin feet. This quarter, one unlucky group has been given the most formidable challenge the engineering school has ever proposed: reopening the Norris Ice Rink. “We realize that this is a tough task,” said Mark Turner, a freshman civil engineer. “Even mother nature couldn’t get the ice rink open. That’s where engineering comes in.” The group of eager engineers are