Pipe Work (IMAGE) University of North Carolina at Chapel Hill Caption Mathematicians find that the shape of a pipe dramatically affects how a pollutant will spread. Credit UNC-Chapel Hill's College of Arts and Sciences Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.