Armored emulsions sequence (IMAGE) University of California - Los Angeles Caption Images showing the volume can be maintained over several days inside U-shaped cups that are each about a half-millimeter in length. A slow reduction in the volume of drops is presumably due to dissolution of water in the oil phase and evaporation over time. Credit Di Carlo Research Group/UCLA 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.