Nader Engheta Explains Metamaterials (VIDEO) University of Pennsylvania This video is under embargo. Please login to access this video. Caption Nader Engheta, the H. Nedwill Ramsey professor of Electrical and Systems Engineering in Penn's School of Engineering and Applied Science, explains the basic premise behind metamaterials, and how they achieve electromagnetic properties not found in nature. Credit University of Pennsylvania 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.