[TheForge] Slide rules (was: Excessive scaling?)

[Jerry Smith]

You know after all of these years, I still have my K &
E slide rule, but way back when I had a Friden
Calculator and I still know where it is. It's built by
a tank and works great if you don't mind the noise.

Jerry

--- Bruce Freeman <FREEMAB at pt.fdah.com> wrote:

> No, but I do remember what was probably the
> electromechanical rendition
> of the same thing.  Monroe was one brand.  Big,
> ungainly things.
> 
> One of my favorites is a little hand calculator I
> still have.  It's
> effectively an abacus, but uses a digital scale
> rather than beads.  It's
> as if you glued the beads of an abacus together and
> wrote a number on
> the top of each one.  Then, using a stylus, you
> advance the rack of
> beads up for addition or down for subtraction.  The
> current "bead count"
> shows up in a window.  It even allows for carrying
> or borrowing by a
> simple motion of the stylus.  Elegant and simple. 
> Multiplication is
> done by repeated addition.  Unfortunately, it has no
> provision for
> division.  Worked fine for balancing a checkbook.
> 
> Bruce
> NJ
> 
> >>> rsmuck at hughes.net 12/14/2006 11:23 AM >>>
> Do any of you remember the rotary calculators, I
> knew some surveyors
> who 
> used them. They were also called coffee grinders,
> were basically a
> round cyl 
> 1 1/2 or 2" in diameter about 3" long you dialed in
> a number on the
> case 
> then turned a handle on the end the number of times
> that you needed to
> 
> multiply.
> Rowland of Roseburg, OR 97470
> 
> 
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