DR MITSUO OHTSUKI / SCIENCE PHOTO LIBRARY DR MITSUO OHTSUKI / SCIENCE PHOTO LIBRARY
Scanning transmission electron micrograph (STEM) of a single atom of gold. The scale bar beneath represents 1 angstrom. Magnification at 35mm size is x30 million, but even at this magnification an individual atom is seen as no more than a blur, without structure.
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