Ahem to your ahem. USMA is not an acronym -- unless you want to get everyone to pronounce it "ussmah." Everyone I know spells it out, as initials -- "you ess emm ay."
I agree with you about micron, though. It's unacceptable, as its old symbol, �, is now exclusively a prefix -- and, in SI, a prefix may not stand alone. It's as bad as referring to a kilogram as a kilo (or, as the really ill-informed say, "keelo"). Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator] >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >Behalf Of John Nichols >Sent: Thursday, September 09, 2004 10:43 >To: U.S. Metric Association >Subject: [USMA:31057] Brain Wave > > > > > Of David King > >I have, many years ago, used CNC machine tools and always > >worked in microns > >Ahem. > >********************************************** >http://ts.nist.gov/ts/htdocs/200/202/metrsty3.htm > >Incorrect Terms >The word "micron" is an obsolete term for the quantity "micrometer." >********************************************** > >Brain thought on reading the Ahem. > >********************************************** >Future Incorrect Terms >The word "inch" is an obsolete term for the quantity "25.4 mm" >The word barley corn is an obsolete term for the quantity "8.3666 mm" >The acronym USMA is an obsolete term for a group of people "who >laboured to >bring light to the world, and whose remains are buried in a Sacred >Vault in >the far mountains." > >********************************************** >
