Compact discs. Falling compact discs leaving trails of colour. Each disc stores data as a series of fine depressions,representing a digitised signal capable of being read by a laser. To reflect the laser light,the data layer is coated with a fine film of metal which follows the depressions exactly. This layer is covered by layer of plastic which prevents dust and scratches from affecting the reading of the information | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / KEN M. JOHNS |
Bildgröße: | 3481 px × 4268 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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