A word about global warmingStan D. at al:
Let me explain. First of all, there is no L in SI at all. The substitute symbol
for the SI dm³ is l (lower case "el"). Yes, people use also a script "el" and
other symbols that, albeit common, are not any more SI than dkg and similar
ubiquitios traditions.
The litre is a nickname for the cubic decimetre as Bill is to William. It is
not a unit, because, by definition, SI is a coherent system. Yes, several
nicknames are allowed with SI, but that does not make them SI. None of them is
supposed to be combined with prefixes, and that for obvious reasons, confusion
and safety among them.
Stan J.
----- Original Message -----
From: STANLEY DOORE
To: [EMAIL PROTECTED] ; U.S. Metric Association
Sent: 07 May 06, Sunday 17:36
Subject: Re: [USMA:38600] Re: A word about global warming
Stan J et al:
The L is an accepted unit in the SI. If there is no kL in the SI then the L
is not an accepted unit. Standard SI prefixes are used with all sorts of
units such as bytes, bits etc.
The selection of numbers as Stan J. indicates for J for energy is a matter
of context.
Regards, Stan Doore
----- Original Message -----
From: Stan Jakuba
To: U.S. Metric Association
Sent: Sunday, May 06, 2007 8:56 AM
Subject: [USMA:38600] Re: A word about global warming
Pat:
I admire the effort behind your collecting the plethora of those useless
units. As to the request for comments - on the negative, it is the usual
metric-perception-harming expressing numbers, particularly with energy usage,
in more that two significant digits.
I'd change the values to 1600 PJ, 1000 PJ, 290 PJ, and retain 56 PJ. This
despite the stupidity of the original numbers - they were obvioulsy converted
from something else by a person with a calculator but no brains. Particularly
with coal where the energy content can differ 40 % from one mine to another.
And use symbols. Not everybody speaks English or knows the english spelling
of the unit words or prefix words. Let's use SI among us to its ultimate goal -
a unified language of measurements world over, regardless of cultural
preferences.
Stan J.
PS: A note to the other Stan: For the above reason there is no such thing
as kL in SI.
----- Original Message -----
From: Pat Naughtin
To: U.S. Metric Association
Sent: 07 May 05, Saturday 05:57
Subject: [USMA:38593] A word about global warming
Dear All,
Last week's discussion about global warming measurements stirred my
stumps to the extent that I have now revised the article, 'A word about global
warming' and you can download the three page pdf file from
http://www.metricationmatters.com/docs/AWordAboutGlobalWarming.pdf
I would appreciate any comments or suggestions that you might have.
Cheers,
Pat Naughtin
PO Box 305, Belmont, 3216
Geelong, Australia
Phone 61 3 5241 2008
Pat Naughtin is the editor of the free online monthly newsletter,
'Metrication matters'.
Subscribe at http://www.metricationmatters.com/newsletter
Pat is recognised as a Lifetime Certified Advanced Metrication Specialist
(LCAMS) with the United States Metric Association. He is also editor of the
'Numbers and measurement' section of the Australian Government Publishing
Service 'Style manual - for writers, editors and printers'. He is a Member of
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for Professional Speakers. See: http://www.metricationmatters.com
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