I agree.

Even younger people in radio and TV engineering refer to K.C. ("kay-cee") and M.C. ("emm-cee"), the abbreviations for the old "kilocycles" and "megacycles" frequency unit names, because they can be said more quickly and easily than "kilohertz" and "megahertz." -- Jason


----- Original Message ----- From: "Jim Elwell" <[EMAIL PROTECTED]>
To: "U.S. Metric Association" <[email protected]>
Sent: Saturday, March 25, 2006 6:59 AM
Subject: [USMA:36376] Re: Units used in popular science books: buy Canadian


At 24 03 06, 09:24 PM, Pat Naughtin wrote:
The fact is that we live in a living sea of language. As promoters of the
metric system we strive to promote a single measurement method that is clear
open and fair to all who use it. In short: 'For all people; for all time.

However, other people simply play with words as they encounter them with
little or no understanding of their underlying systemic structure.

While I agree with Pat in what he says above, I think the situation is more complex than just lack of understanding. If you compare USC (US customary) units to metric unit, or even "official" metric units to a variety of "slang" metric units, one things jumps out: people tend to like and use single-syllable units.

USC v. Metric
inch, quart, pint, yard, mile, knot
centimeter, liter, milliliter, meter, kilometer, kilometer per hour

Slang v. Metric
klick, nit, ums, carbs
kilometer, candela per square meter, micrometer, grams of carbohydrate

Or even USC v. Slang USC: "mils" instead of thousandths of an inch

Not all of these are due to ignorance; I suspect most people who use "klick" are perfectly aware that is short for "kilometer." Certainly any engineer who uses "nit" knows it is a candela per square meter. Any machinist knows what a "mil" is.

My point is this: our measurement system should SERVE us, not impede us. SI is dramatically better than any alternative from a technical standpoint at serving us, but one of its weaknesses is the length of the various names. Where a lengthy name is used frequently in a profession (e.g., nit), I think it is inevitable that some shorthand slang word will develop. Not due to ignorance, but due to convenience.

Since I think this is inevitable, I also think we (and the BIPM) should embrace it so we can help control it. Just hoping it won't happen is fruitless.

Jim



Jim Elwell
[EMAIL PROTECTED]
801-466-8770
www.qsicorp.com



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