My reviews & how-tos for adding machines and other antique calculating devices.
Curated by: Chris Staecker (120 videos)
The Handi-Add, from 1958. It's a red plastic clicker! This is episode 41 of my series about antique calculating devices. Box photos from https://www.rechnen-ohne-strom.de/rechner-galerie/z%C3%A4hler-diskret/shopping-adder/ Gear animations made at http://geargenerator.com End song inspired by "Hotter Than a Molotov" by The Coup. Chris Staecker webarea: http://cstaecker.fairfield.edu/~cstaecker #addingmachine #math #clicker