Copper powder being heated on a combustion spoon in the flame of a Bunsen burner. The spoon itself is glowing red hot,but the copper powder (grey) is unchanged | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 3222 px × 4360 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |