Horseshoe magnet. Iron pins being temporarily magnetised by a permanent iron magnet in a horseshoe shape. Magnetism is mostly a property of metals. It is a force exerted at a distance through a field,generated by moving electric charge (electrons). It can attract or repel. The pins lose their magnetism when they are removed from the presence of the permanent magnet | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Terry, Sheila |
Taille de l’image : | 3419 px × 4140 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |