Silicon Aerogel (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Aerogels, sometimes called "frozen smoke," can be made from different materials. This silicon aerogel is an efficient insulator. Credit Arlon Hunt, Lawrence Berkeley National Laboratory 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.