multiple light scattering effects (IMAGE) Johannes Gutenberg Universitaet Mainz Caption A crystalline drop 240 seconds after being added to a suspension medium under monochromatic illumination at various colors. The multiple light scattering effects at each color transition from blue to red as density decreases. The crystalline drop thus consists of concentric layers at differing densities, whereby density is reduced from inner to outer layers. (The scale bar is equivalent to one millimeter.) Credit photo/©: Josefine von Puttkamer-Luerssen / JGU 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.