The yard did not become more accurate, it changed slightly. the yard is not defined as 0.9144 m, but rather as 0.9144 m EXACTLY. This means that it changed from 0.91443992 m to 0.9144000000 m.
----- Original Message ----- From: "Stephen Humphreys" <[EMAIL PROTECTED]> To: "U.S. Metric Association" <[email protected]> Sent: Monday, January 23, 2006 9:55 AM Subject: [USMA:35785] Re: decimal time > > > > >When the yard became 0.9144 m, it was effectively made *less* not more > >accurate than when it was 0.91443992 m > > For someone like myself 0.00003992m is a pretty small amount for something > that could never be measured to that sort of scale on a brass bar in > Trafalgar square - and small enough never to have a problem in my life. In > fact its probably about the same distance when talking about how the > accuracy of the metre got better defined over the years. >
