Calculating Devices Review / HowTos

My reviews & how-tos for adding machines and other antique calculating devices.

Curated by: Chris Staecker (120 videos)


Currently Playing: Binary number system from 1617 (Napier's Location Numerals) Review / HowTo

The strange binary-like number system invented for Napier's location arithmetic, as described in his "Rabdology" (Rabdologia), published 1617. It's like binary, but worse! This is episode 81 of my video series about old calculating methods. Video about Napier's multiplication board: https://youtu.be/tVoMdddBQ5k End song inspired by "Hotter than a Molotov" by The Coup. https://youtu.be/X8AW7PmsxAY Chris Staecker webpage with location board free PDF download: https://faculty.fairfield.edu/cstaecker/machines/locationarithmetic.html #badge


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