[R-390] was: Theory Question now: abacus (OT)
rbethman
rbethman at comcast.net
Mon Sep 15 20:33:35 EDT 2008
I never saw any elastic beads with four tours in the Orient, BUT, in the
mid '80s I saw them being sold to tourists with a calculator built into
one end.
Dumb tourists buying them too! Not here though. I still have my slide
rules. Never need batteries or sunshine.
Bob - N0DGN
John Lawson wrote:
>
> On Mon, 15 Sep 2008, Barry wrote:
>
>> I wonder how they represent an irrational number on an Abacus?
> Elastic beads.
>
> Cheers
>
> John KB6SCO
--
Bob - N?DGN
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