A magnet is used to separate iron filings from sand. Sand is not attracted to the magnet but the iron filing are pulled out due to the magnetism. This image is before the filing have been attracted to the magnet. 1 of 2. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source / Charles D. Winters |
Bildgröße: | 3401 px × 5120 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |