Madrid - John Napier's Promptuary скачать в хорошем качестве

Madrid - John Napier's Promptuary

In the National Archeological Museum of Madrid, Spain, resides the only period example of John Napier's calculating device: the promptuary. A major focus for John Napier (1550-1617) throughout his life was to make calculation simpler. He created logarithms for this purpose and also invented three calculating devices, including this one. The promptuary seen here is exquisitely crafted. Also, as well as the promptuary strips, it contains reference tables and another of Napier's calculating devices - "Napier's Bones." For those wishing to explore further, here are links on how to make and use the promptuary: Making (and using) the strips:    • Napier's Promptuary   Using the strips:    • Napier's Promptuary   All photographs by Heidi Meyer Video created using Clipchamp