Unconventional use (addition) for the standard sliderule.
Category: Science > Instruments and Methods
Asked by: hlf-ga
List Price: $25.00
14 Jul 2002 12:43 PDT
Expires: 13 Aug 2002 12:43 PDT
Question ID: 39521
Many years ago I learned how to do addition on a standard sliderule. My engineering colleagues were always astonished when they were shown this possibility as it is counter-intuitive. The basic sliderule operation is to add logarithms. I have been wracking my brain trying in vain to reconstruct the very simple process by which normal addition can be performed on the standard sliderule. Does anyone out there know how to to this?
Re: Unconventional use (addition) for the standard sliderule.
Answered By: silviares-ga on 14 Jul 2002 13:36 PDT
Hello there are many resources about sliderules on the web and I found it quite overwhelming being that I have never used a sliderule myself. But I found this on one of the sliderules newsgroups "...I would like to mention again the only simple and easy procedure that I know of performing sliderule addition (although I never used it): a + b = a (1 + b/a)" (http://groups.yahoo.com/group/sliderule/message/4818) Is this what you where remembering or looking for ? Another newsgroup addressing sliderules addition issues is http://slashdot.org/articles/01/07/07/156226.shtml I also found some interesting resources at http://www.sliderules.clara.net/index.htm and http://www.sliderule.ca/ Hope this helps silviares
rated this answer:
The response was close to what I sought and was sufficient for me to work out the rest by myself. Only the first link was helpful. I would have preferred a complete solution, but this answer was sufficient justify payment in full. I was very pleased by the speed with which the answer was forthcoming. Previously I had tried "Ask Dr. Math" without success. So, bravo for Google Answers and silviares-ga. Additional comments would be welcome. Howard
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