[NSRCA-discussion] Slide Ruler,,,,was Art Wagner

Nat Penton natpenton at centurytel.net
Tue Oct 14 15:24:40 AKDT 2008


It was a conductive issue for electrical engineers - to keep you charged.
----- Original Message ----- 
From: "Ron Van Putte" <vanputte at cox.net>
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, October 14, 2008 6:16 PM
Subject: Re: [NSRCA-discussion] Slide Ruler,,,,was Art Wagner


> Gee.  I didn't know that aluminum had even been invented in 1946  
> (yuck, yuck, yuck).
> 
> Ron VP
> 
> On Oct 14, 2008, at 6:09 PM, Nat Penton wrote:
> 
>> Interesting Duane.
>> BTY, I purchased my slide rule in 1946. It has an aluminum frame.
>>                           Nat
>> ----- Original Message -----
>> From: Duane Beck
>> To: General pattern discussion
>> Sent: Monday, October 13, 2008 2:59 PM
>> Subject: Re: [NSRCA-discussion] Slide Ruler,,,,was Art Wagner
>>
>> Apparently, William Oughtred in the 1630's.
>> http://en.wikipedia.org/wiki/Slide_ruler#History
>> http://mysite.du.edu/~jcalvert/tech/slidrul.htm
>>
>> -------------- Original message --------------
>> From: rcmaster199 at aol.com
>>
>> Anyone know who invented the thing??
>>
>>
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