Student holds a magnet which has been dipped into a mixture of iron filings and sand. The iron filings are attracted to the magnet | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hutchings, Richard |
Bildgröße: | 4060 px × 4890 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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