On 2011/03/23, at 03:05 , carlet...@comcast.net wrote:

> I still like "colonial units" - not only is it historically correct but it 
> adds just enough disdain to get the message across.  And people outside our 
> group understand it.
>  
> Carleton
> 
> ----- Original Message -----
> From: mech...@illinois.edu
> To: "U.S. Metric Association" <usma@colostate.edu>
> Sent: Tuesday, March 22, 2011 10:30:15 AM
> Subject: [USMA:50136] Re: 'Words' and their impact on metrication in the USA
> 
> Bob, Tim, and Ron,
> 
> Here is an even better acronym for units "Outside the SI" (OSI).
> 
> OSI is shorter than USC, and shorter than inch-pound.  Even if, by a typo 
> error, OSI appears as 0SI (The zero "0 " is directly above O on most 
> keyboards.) it still conveys the same "0utside SI" meaning, and OSI can be 
> construed to exclude the units isted in Table 10 and Table 11 of NIST SP 811, 
> on Page 11, such as erg, dyne. gauss, torr, kgf, calorie, etc. as "not 
> accepted for use with the SI by this Guide" SP 811.
> 
> Gene.


Dear Carleton, Gene, and All,

I like it, but I have a problem with the term "colonial units" because many of 
them -- perhaps most -- are not units at all. Suppose that someone refers to an 
old sword and describes it as "26.72 inches". Before I can comprehend what he 
is saying I need to have an answer to the question: "Which inch?" Is it 
pre-1934 and therefore pre-Imperial? Is it post-1924 and pre-1934 (when the 
Houses of Parliament burnt down) and therefore a true Imperial inch? And so on 
for all of the other UK inches. Then we could start on the inches defined at 
various times in the USA. Is it a pre-1893 inch? Does the Mendenhall Order 
apply to this inch? And so on for the various inches in the USA.

After consideration of these questions I suggest that old measuring words be 
described as "colonial measures".

Cheers,

Pat Naughtin LCAMS
Author of the ebook, Metrication Leaders Guide, see 
http://metricationmatters.com/MetricationLeadersGuideInfo.html
Hear Pat speak at: http://www.youtube.com/watch?v=_lshRAPvPZY 
PO Box 305 Belmont 3216,
Geelong, Australia
Phone: 61 3 5241 2008

Metric system consultant, writer, and speaker, Pat Naughtin, has helped 
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