BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY
Needle and thread. Coloured Scanning Electron Micrograph (SEM) of the eye of a needle, threaded with red cotton. The cotton appears as a bundle of fibres, some of which have bunched up and become tangled next to the needle's eye. Magnification: x16 at 35mm size; x32 at 5x7cm size.
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