My reviews & how-tos for adding machines and other antique calculating devices.
Curated by: Chris Staecker (120 videos)
The Gerbert abacus, designed by Gerbert d'Aurillac in the late 900s AD. It's a counting board with counters marked with arabic numerals. This is episode 43 of my series about antique calculating devices. Chris Staecker webarea: http://cstaecker.fairfield.edu/~cstaecker End song inspired by "Hotter Than a Molotov" by The Coup. #math #abacus #gerbert