Car model of shouting upwind (IMAGE) Aalto University Caption To make the measurements, a car was used to move a model of a shouter, generating wind past it. Credit Ville Pulkki / Aalto University Usage Restrictions May be used in publications related to this release with appropriate credit. 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.