Iron filings on a horseshoe magnet. The magnetic field between the poles of the magnet induces a magnetic field in each tiny particle of iron,effectively turning each into a tiny bar magnet. These align with the magnetic field and can be levitated to follow the three-dimensional field. As the field weakens away from the poles,the field is no longer strong enough to levitate the filings against their own weight | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4217 px × 4217 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |