51.3 MB (3.3 MB compressed)
5347 x 3354 pixels
45.2 x 28.4 cm ⏐ 17.8 x 11.2 in (300dpi)
DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY
Scanning electron micrograph (SEM) of the broken edge of a long-playing, stereo record which has been deliberately broken. The serrated edge at top & the spiral pattern at bottom correspond to the two grooved surfaces of the record. In between is the polyvinyl chloride (PVC) into which the grooves are cut; the PVC displays a pattern of fracture marks caused by the breakage of the record. Magnification: x10 at 35mm size, x75 at 8x10-inch size. Reference: MICROCOSMOS, figure9.15, page 182.
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