Steel contains oxygen and oxygen is flammable. We demonstrate this by lighting a piece of steel wool on fire. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Hutchings, Richard |
Taille de l’image : | 5042 px × 3681 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |