Fluid-Switchable Smart Window (VIDEO) Optica This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption A new type of smart window uses liquid to switch from reflective to clear. The new technology is inexpensive to make and could help make buildings and homes more energy efficient. Credit Keith Goossen, University of Delaware 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.