The only Universal Constant is Change :) It is strange really, I have used metric units my entire life in school, collage and work, but for some reason I tend to work in both inches and Meters when it comes to dimensional units. On 23 October 2011 23:51, William "Chops" Westfield wrote: > > On Oct 22, 2011, at 3:24 PM, Gerhard Fiedler wrote: > >> the biggest problem with the use of traditional (not only English or >> US) units is the tendency of people who use them to work with "magic >> formulas" and not use proper units with their calculations > > You mean like "to get the length of your dipole antenna, divide 468 by > the frequency"? > (which gives you the length in feet, of course.) =A0One of the reasons I > never became a ham, sort-of.) > http://www.radioqth.net/AntennaLength.aspx > > I like computing with units, except for (theoretically) needing to > know the units of assorted universal constants, which sometimes get > really ugly... > > Not terribly happy that even metric has its variations (cgs vs mks vs > si, for instance.) =A0But at least if you get those wrong, you're likely > to be off by enough that you'd notice... > > BillW > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .