Mapping the impact (IMAGE) Southern Methodist University Caption Mapping the impact: A computational study shows the effects of being struck by a tennis ball at three different locations -- frontal (left), lateral (middle) and crown (right). Credit SMU Usage Restrictions None License Original 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.