Oops. In the first bullet item, "are made" should be "are named." Bill _____
Bill Potts <http://wfpconsulting.com/> WFP Consulting Roseville, CA <http://metric1.org/> http://metric1.org [SI Navigator] _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Potts Sent: Monday, July 14, 2008 12:59 To: U.S. Metric Association Subject: [USMA:41414] Re: Newton for automobile efficiency Let me reiterate the general case, Bill. (For the benefit of others. I know you know.) * All units whose symbols are derived from people's names are capitalized, although some are more than one letter long, in which case the following letters are lower case (e.g., Hz). Two or more letters are used only where two or more people after whom units are made have the same surname initial (e.g., H for henry, named after Joseph Henry; and Hz for hertz, named after Heinrich Hertz). * All other unit symbols are lower case. * Further, spelled out units named after people (i.e., using their surnames) are all-lower-case -- to distinguish the unit from the person. * Further still, all prefixes with values up to 1000 are lower case -- Greek in one case (k, h da, c, m, ยต, n, p, etc,). This is a pity, as it would be easier if all prefixes with a value of 10 or more (i.e., all non-fractional prefixes) were upper case (D instead of da, for deka; H instead of h, for hecto; and K instead of k, for kilo). This is an area where the cautious and conservative approach of those who make the decisions are less than commendable. Bill _____ Bill Potts W <http://wfpconsulting.com/> FP Consulting Roseville, CA <http://metric1.org/> http://metric1.org [SI Navigator] _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Hooper Sent: Monday, July 14, 2008 10:48 To: U.S. Metric Association Subject: [USMA:41412] Re: Newton for automobile efficiency On Jul 14 , at 1:01 PM, lps wrote: I use Mj/km as an indicator. Please use the correct SI symbol, MJ, for megajoules. There is no unit that uses a lower case j in SI. Bill Hooper 1810 mm tall Fernandina Beach, Florida, USA ========================== SImplification Begins With SI. ==========================
