I was taught a metre was a 40 millionth of the equator at the temperature of 4 celcius degrees.
> -----Message d'origine----- > De : [EMAIL PROTECTED] [mailto:talk- > [EMAIL PROTECTED] De la part de Richard Fairhurst > Envoyé : mardi 2 septembre 2008 20:17 > À : [email protected] > Objet : Re: [OSM-talk] [tagging] Feature Proposal - RFC - > waterways/ditch > And don't forget that the metre was redefined in 1983. If specifying a > speed in km/h, you should ascertain the age of the sign to see whether > it's 50,000 * one ten-millionth of the distance from the Equator to > the North Pole via Paris, or the distance travelled by light in an > absolute vacuum in 50,000 299,792,458ths of a second. > > /me starts to cry. > > cheers > Richard > > > _______________________________________________ > talk mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
