Testing sulphur for magnetic properties. Bar magnet (left) being used to test a watch-glass of sulphur (yellow) for magnetism. Only certain materials (such as iron,steel and other metals) have the electronic and molecular structure needed for magnetism to be present. As seen here,sulphur is not a magnetic material | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 4256 px × 2848 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |