SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY
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.
Model release not required. Property release not required.