31.6 MB (3.9 MB compressed)
2912 x 3789 pixels
24.6 x 32.0 cm ⏐ 9.7 x 12.6 in (300dpi)
SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY
Graphite pencil core. Coloured scanning electron micrograph (SEM) of the core of a graphite pencil. This core is made up of graphite, mixed with clay and water and pressed into a rod shape. Because graphite is a soft form of carbon, the tip of the pencil disintegrates under pressure to leave marks on paper. Magnification: x25 when printed 10cm high.
Model release not required. Property release not required.