On 23 Jan 2002, at 21:35, Gene Mechtly wrote: > I strongly support your advocacy of m/s for speed, but for all speeds, > not just for wind, aircraft, and for ships at sea. > My extraction of some of your words more exclusively favors m/s only. > > ... It is one of the key areas of metrication for the aeronautics and > > seagoing industries so we should get it right. ... > > The SI unit for wind speed is metres per second, and its SI symbol is > > m/s. ... appropriate SI prefix ... gives possibilities such as > > ... kilometres per second (km/s). ... > > ... It would be best if we used the SI unit only ...
first note: on sea 1 m/s is about 2 knots , and so conversions are very easy (and if you consider how in origin were stated nautical mile and meter .the "about" would have been "equal") second note: In my car the tachometer is about 4% in excess (law state that it must have a tolerance of +5-0 % so when i protested i was told that it was "normal" and had no right to have it replaced. However the engine angular speed meter is graduated in rpmx100 (never seen a car dashboard instrument graduated in radiant per second ) . Actually in 5th gear, the one I usually use on highway, it give me the exact [at at least, less than 1% difference] speed in m/s ... pherhaps a chance, but it is ... Leonardo Boselli Firenze http://www.toscanarail.org
