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![Napier's bones or rods](https://coimages.sciencemuseumgroup.org.uk/221/464/small_thumbnail_1876_0931__0006_.jpg)
![Napier's bones or rods](https://coimages.sciencemuseumgroup.org.uk/221/465/small_thumbnail_1876_0931__0007_.jpg)
![Napier's bones or rods](https://coimages.sciencemuseumgroup.org.uk/128/944/small_thumbnail_1876_0931__0005_.jpg)
![Napier's bones or rods](https://coimages.sciencemuseumgroup.org.uk/128/940/small_thumbnail_1876_0931__0001_.jpg)
![Napier's bones or rods](https://coimages.sciencemuseumgroup.org.uk/128/941/small_thumbnail_1876_0931__0002_.jpg)
![Napier's bones or rods](https://coimages.sciencemuseumgroup.org.uk/128/943/small_thumbnail_1876_0931__0004_.jpg)
![Napier's bones or rods](https://coimages.sciencemuseumgroup.org.uk/128/942/small_thumbnail_1876_0931__0003_.jpg)
Napier's bones or rods, wood, in case
Napier's bones, cylindrical type, late 17th century. John Napier (1550-1617), discoverer of logarithms, created the popular calculating tool known as Napier's rods or bones. Napier's rods reduced multiplication to a sequence of simple additions; division and square roots could also be achieved.
Details
- Category:
- Mathematics
- Object Number:
- 1876-931
- Materials:
- brass (copper, zinc alloy) and box (wood)
- type:
- napier's bones
- credit:
- Dring and Fage