59.4 MB (4.5 MB compressed)
4096 x 5069 pixels
34.8 x 42.9 cm ⏐ 13.7 x 16.9 in (300dpi)
POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Pencil. Coloured scanning electron micrograph of a sharpened pencil. The pencil consists of a thin rod made of clay & graphite (grey), a type of carbon, encased in wood (brown). The mixture of graphite and clay is often incorrectly referred to as the "lead". Magnification: x17 at 6x7 cm size.
Model release not required. Property release not required.