Polystyrene foam. Coloured scanning electron micrograph (SEM) of a section through a block of extruded polystyrene foam,showing the internal closed-cell air spaces. Magnification: x55,when printed 10 centimetres high | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Diller, Stefan |
Taille de l’image : | 3543 px × 4960 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |