Nature & Environment
The struggle to save the seabirds after the Torrey Canyon disaster
...free of oil stain in about two months but were still not fully waterproof. For a feather to be waterproof its components must have a regular structure (Elder 1954) of certain dimensions (Rijke 1968) and a water-repellent surface. It is possible that, as in some plants, a microrough surface is needed for strong water repellency (Amsden and Lewins 1966). Oiling, handling...