Droplets on Goose Feathers (IMAGE) Princeton University, Engineering School Caption In the researchers' study of natural fibers, oil applied to goose feathers shows how droplets of smaller volumes spread along the fibers and cause clumping, while larger droplets do not. The finding could prove important for cleaning waterfowl after accidental spills. Credit Image courtesy of Camille Duprat and Suzie Protière Usage Restrictions non-commercial use 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.