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: cstaecker.fairfield.edu/~cstae...
End song inspired by "Hotter than a Molotov" by The Coup.
Chris Staecker webarea: cstaecker.fairfield.edu/~cstae...
#america
Негізгі бет Ғылым және технология Numberaid the American Abacus! Review / HowTo
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