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Record stylus playing record, SEM

Record stylus playing record, SEM

H100/0735

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38.6 MB (13.0 MB compressed)

3996 x 3376 pixels

33.8 x 28.7 cm ⏐ 13.3 x 11.3 in (300dpi)

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Credit

SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY

Caption

Record stylus playing record. Coloured scanning electron micrograph (SEM) of the needle (stylus) of a record player in a groove on a record. The grooves in the plastic vary in shape, and this is detected by the stylus and transformed to produce a variation in a sound output. The original groove was produced by reversing the process to record a sound input. In this way, a piece of music or song can be recorded as variations in a groove marked on a plastic disc. This record can then be played to reproduce the original sound. Magnification unknown.

Release details

Model release not required. Property release not required.

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