1725 Newsham fire engine (IMAGE) American Institute of Physics Caption The 1725 Newsham fire engine inspired the authors to examine the Windkessel effect and capture the physics behind the enduring technology of a steady stream of water under pressure. Credit Photo used courtesy of The Colonial Williamsburg Foundation. Museum Purchase. Usage Restrictions Image may not be used without permission. 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.