"Frederik Ramm" [email protected] wrote on 26/01/2011 at 09:45:29 +1100 subject "[OSM-talk] military vs consumer GPS and the equator" :
> Joe Richards wrote: >> So essentially even the so-called 'scientific museum' was a sham/lie and >> the experiments they showed-off were made up. The real equator is >> nearby, but not where they said it was. > What, in your mind, is "the real equator"? > The Karlsruhe Zoo, not far from where I live, has a brass marking for > the 49th parallel but your GPS will show that you're still 140 metres > away from it when you stand on the line - that's because the marking has > been erected with reference to the Bessel ellipsoid and not the WGS84 one. > Does that mean the brass line is a "sham" or a "lie"? No, it's just a > pleasant reminder that there is more to Geodesy than just reading > numbers off a device, be it "military" or "civilian". > Bye > Frederik You are certainly right!! -- Sincerely Hendrik Oesterlin - email [email protected] _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
