Wang Chung (27-97) of Eastern Han noted in his Critique of Opinions the function of a magnetic ladle. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / SCIENCE SOURCE / New York Public Library |
Bildgröße: | 1680 px × 4216 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |