What I have a hard time figuring out is how they did it using their math - imagine engineering all those projects when you have you add/divide/multiply using their numbering system?
Abacus: Mystery Of The Bead — The Bead Unbaffled
webhome.idirect.com ^ | prior to 2010 | Totton Heffelfinger & Gary Flom
Posted on 10/21/2010 5:58:39 PM PDT by SunkenCiv http://www.freerepublic.com/focus/chat/2612199/posts
27 posted on 03/26/2018 6:40:32 PM PDT by SunkenCiv
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