45.8 MB (1.9 MB compressed)
4000 x 4000 pixels
33.8 x 33.8 cm ⏐ 13.3 x 13.3 in (300dpi)
EYE OF SCIENCE / SCIENCE PHOTO LIBRARY EYE OF SCIENCE / SCIENCE PHOTO LIBRARY
All moral rights asserted. Recolouring or alteration of the image is prohibited without permission.
Ceramic filter, coloured scanning electron micrograph (SEM). This filter is based on the frustule, or cell wall, of diatoms. Diatoms are single-celled algae that have a frustule rich in silica and covered in tiny holes. Magnification: x1600 when printed at 10 centimetres wide.
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