4-D VIP-Man (IMAGE) Rensselaer Polytechnic Institute Caption A moving lung model of the 4-D VIP-Man. Credit Rensselaer/Xu Usage Restrictions Please run photo credit. 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.