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

[Jerry Smith]

Well they were using them up in the 60s or maybe
beyond. I had a circular slide rule. With that a
chain, a level, pencil and my notebook, I could
measure the world.

Jerry

--- "Washington, Aubrey O." <awashington at ou.edu>
wrote:

> I think my grandfather had one of those.  He got his
> civil engineering degree from the Univ. of Texas in
> about 1905 and spent the next several years
> surveying the route for a railroad down the western
> coast of Mexico.  He left Mexico when the 1910
> Revolution started.  I think one of my uncles got
> all his surveying equipment when he died in 1954.
>  
> Aubrey
> 
> ________________________________
> 
> From: theforge-bounces at mailman.qth.net on behalf of
> rsmuck
> Sent: Thu 12/14/2006 10:23 AM
> To: Sponsored by ABANA
> Subject: Re: [TheForge] Slide rules (was: Excessive
> scaling?)
> 
> 
> 
> 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
> I love The Science Channel
> My Hero's are Burt Rutan & Paul McCready
> ----- Original Message -----
> 
> 
> > _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
> 
> 
> 



 
____________________________________________________________________________________
Cheap talk?
Check out Yahoo! Messenger's low PC-to-Phone call rates.
http://voice.yahoo.com