Napier's bones,an early calculating machine designed by John Napier which converted multiplication problems into a sequence of simple addition | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source |
Bildgröße: | 4500 px × 3096 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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