Then again...

"Einstein favors a Nestler slide rule in his work. The approaches to the
Golden Gate Bridge and the thrust profile of the Redstone Rocket are
designed with simple Rietz based slide rules … E. H. Lowry's Dietzgen
Phillips 1725 and Wernher Von Braun's Nestler 23 respectively."  From the Oughtred website

--- On Fri, 4/16/10, Les Burel <squared47@...> wrote:

From: Les Burel <squared47@...>
Subject: RE: SR slide rule sighting - calculation helped the Apollo 13 mission return to
To: sliderule@yahoogroups.com
Date: Friday, April 16, 2010, 10:49 PM







 









I thought I saw a ruler edge on the slide rule and maybe it was a Hughes Owen 1771.  I would be amazed if the Canadian engineers needed just a basic slide rule.  I don't know what other HO models could have been used on that stock.  If you stay on that link several videos come up.  One vid has one of the engineers being interviewed and he produces a SR with a cursor and it has a ruler edge.



Les



--- On Thu, 4/15/10, Eriugena <eriugena@bellsouth. net> wrote:



From: Eriugena <eriugena@bellsouth. net>

Subject: RE: SR slide rule sighting - calculation helped the Apollo 13 mission return to

To: sliderule@yahoogrou ps.com

Date: Thursday, April 15, 2010, 12:32 AM



 



Dear Marion,



Thank you for answering in my question. Somehow, it looked thicker than my



Versalog.



--David



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