POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Sanitary towel. Coloured scanning electron micrograph (SEM) of the under-surface of the outer layer of a sanitary towel. The surface is designed to absorb blood into the towel without allowing the absorbed fluid to flow in the opposite direction. Thus the towel retains a relatively dry surface. Magnification: x30 at 6x7cm size.
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