Groovy!

WestSide_Supporter February 10, 2019

A colorized scanning electron microscope image of a phonograph needle in the groove of a vinyl record. The texture inscribed along the walls of the spiral groove replicates the soundwaves as they were recorded, making a reproduction of sound that can be played over and over.

A needle playing a record. Coloured scanning electron micrograph (SEM) of the needle (stylus) of a record player in a groove on a record. A record is used to store sound. It is produced by a machine with a head which vibrates in time to the sound being recorded. This cuts a groove in the record which varies according to the vibrations. A needle can then reproduce these vibrations as it runs along the groove and these, when amplified, produce the original sound.

Author: WestSide_Supporter