On Thu, Nov 20, 2008 at 4:21 AM, Steve Meier <[EMAIL PROTECTED]> wrote: > 1 in = 25.399999999972 mm not exactly 25.4 but close enough for layout > work if you use high enough precision.
I recall one of my physics professors stating the same thing, but I can't find anything to back up the claim. What I *did* find was the "survey inch" which is indeed not exactly 25.4mm. > 25.4 to 1 might not be close enough if you are trying to put a satellite > in orbit around mars. Depends what you're trying to do. You're going to have to make course corrections later in the journey anyway, since your fuel metering will have only a MUCH lower precision than that required to detect the difference between an international inch and a survey inch (if that's what you're referring to). _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
