Again, it's Dennis Brownridge's call. Bill Potts, CMS Roseville, CA http://metric1.org [SI Navigator]
>-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On >Behalf Of Jim Elwell >Sent: Monday, February 17, 2003 15:53 >To: U.S. Metric Association >Subject: [USMA:24884] RE: Definitions of US non-metric units > > >Ok by me, if Bill were inclined to adopt the idea. > >Jim Elwell > >At 2/17/2003, 06:23 PM, kilopascal wrote: >>2003-02-17 >> >>Instead of "precise" and "typical, what about "actual" and "practical"? >> >>John >> >> >>----- Original Message ----- >>From: "Jim Elwell" <[EMAIL PROTECTED]> >>To: "U.S. Metric Association" <[EMAIL PROTECTED]> >>Sent: Monday, 2003-02-17 10:18 >>Subject: [USMA:24876] RE: Definitions of US non-metric units >> >> >> > At 2/16/2003, 02:51 PM, Bill Potts wrote: >> > >Dennis Brownridge and I have anticipated that very need, Terry. >> > > >> > >Just go to http://metric1.org/nonsi.htm. >> > > >> > >Bill Potts, CMS >> > >Roseville, CA >> > >http://metric1.org [SI Navigator] >> > >> > Bill: >> > >> > As always, there is more to your website than I realized. I've >bookmarked >> > this non-metric-unit conversion page for reference, and will >be referring >> > my (captive) students to it. >> > >> > However, I'm puzzled by the widely varying precision in the conversion >> > factors. You say that precision is shown as "appropriate," but >I can't see >> > why cubic foot deserves 8 significant digits while gallon gets only 4. >> > Fluid ounce gets 5, cup gets 3 (or 2). >> > >> > I would suggest two columns: "precise" (with maybe six digits for >> > everything) and "typical" (rounded as appropriate). That way I >can have a >> > "cup" as 240 mL for typical use, or 236.59 mL if I want the >more precise >>value. >> > >> > Actually cup illustrates the problem: there are some listserver members >>who >> > would suggest it should be rounded to 250 for typical use, not >240, but if >> > only the rounded value is shown, it makes it difficult for the user to >> > round as appropriate to their use. >> > >> > >> > Jim Elwell, CAMS >> > Electrical Engineer >> > Industrial manufacturing manager >> > Salt Lake City, Utah, USA >> > www.qsicorp.com >> >
