My reviews & how-tos for adding machines and other antique calculating devices.
Curated by: Chris Staecker (120 videos)
The Numberaid: The American Abacus created by Andrew Schott in 1957. It's a strange hybrid Russian/Chinese abacus meant to teach kids something about something. This is episode 74 of my video series about old calculating devices. Numberaid Guidebook PDF: https://archive.org/details/numberaid End song inspired by "Hotter than a Molotov" by The Coup. Chris Staecker webarea: https://faculty.fairfield.edu/cstaecker #america