Fractal arrangement of periodic systems (IMAGE) University of Utah Caption Fractal arrangement of periodic systems. Dots identify Moiré parameter values corresponding to systems with periodic microgeometry, where short and large periods are identifed by large and small dots, respectively, revealing self similar, fractal arrangements of periodic systems. Credit Courtesy of Ken Golden/University of Utah. Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.