On Tuesday 06 September 2005 21:37, Bill Hooper wrote: > On 2005 Sep 6 , at 5:38 PM, Pierre Abbat wrote: > > ... making it, and > > the ounce, a lot more precise than the Imperial standard yard could > > ever be. > > I don't know how Pierre concludes that the ounce is more precise than > the yard.
I didn't. I concluded that the ounce is more precise now that it is defined by the meter, which is defined by an electromagnetic wave, than it was when it was defined by the artifact that Britain kept as a yard standard. Of course the meter is also more precise now than when it was defined by the meter bar. The ounce is 1/3 as precise as the meter. phma
