Normarski differential interference contrast (DIC) light micrograph of the surface of a vinyl record,showing the grooves. The nature of the groove varies with the intensity of the music: the straighter the groove the quieter the music,the more wavy the groove the louder the music. The stylus travels through the groove & picks up the music modulation from the sloping sides; it is transmitted to the cartridge where a piezoelectric crystal or an electromagnet converts the vibration into an electrical signal. The grooves shown here are from the 1974 Elton John record "Lucy in the sky with diamonds". Magnification: x100 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Pasieka, Alfred |
Taille de l’image : | 4782 px × 3655 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |