The Brits are as bad when it comes to anything foreign. Some years ago I
sent a stylized version of http://www.grahamdavies.net/node/247 around the
office. The response was two people rolling with laughter and thirty
looking at it blankly.
_
From: owner-u...@colostate.edu
Martin _ I remember this 'notice' from many (around 30) years ago (when I lived
in Canada). I had completely forgotten it! Thanks for reminding me of it. I
think all of us where I worked at the time (Canadian Institute of Steel
Construction) had a good laugh when it was taped to the wall
On Wednesday 08 July 2009 16:58:27 Michael Payne wrote:
http://www.yellowjacket.com/images/A_Maniflds/Brute-II-C-hose.jpg
Yellow Jacket is a company that makes equipment for servicing Air
Conditioning equipment, both Home and Auto. The A/C guy was around my house
and I noticed the guage had
I've just seen this picture for the first time. If you look closely at the
bottom right of each gauge, it looks as if the outer pressure scales are
marked MPa? Hard to see, the picture is not sufficiently hi-res.
If this is true, then the original email received my Michael may just have
We may have already won.
Check out this link. (You may have to click on a + and a More info box to get
it to open fully):
http://www.yellowjacket.com/HVACRProducts.asp?t=HVACRl=5c=34p=322
A more detailed photo in the .pdf spec sheet makes me think it is a pressure
gauge (the blue covers
I'll admit their web site pictures are not the best. From recollection, the
gauge was primarily psi and kg/cm2 with a separate Fahrenheit and Celsius
scale. I cannot remember a fifth scale. It seems pressure in an Air
Conditioning system is tied to the ambient temperature and hence the
I was under the impression SI pressure in Pascal's was always positive. Earth
pressure near 100 kPa, Mars pressure near 20 kPa, outer space near 0 Pa. Is
this correct. I see the gauge from Yellow Jacket has an area listing a minus
side.
Mike Payne
Man, that sucks. ;) Sorry, couldn't resist.
Original Message
Subject: [USMA:45330] Vacuum display
From: Michael Payne metricm...@verizon.net
Date: Thu, July 09, 2009 12:53 pm
To: U.S. Metric Association usma@colostate.edu
I was under the impression SI pressure in Pascal's
Everyone,
This is just to let you know of a change in my telephone service.
(432)694-6208 HAS BEEN DISCONNECTED (FORMERLY MY HOME LAND LINE). PLEASE
REMOVE THIS NUMBER FROM YOUR RECORDS.
MY TELEPHONE NUMBERS ARE:
CELL PHONE: +1(432)528-7724 (BEST WAY TO REACH ME)
HOME FAX:
I have never noticed anything in the SI Brochure or NIST SP330 requiring
pressure to be stated on an absolute basis vs gauge. Obviously the other side
is atmospheric pressure.
Since proper procedure is to purge the a/c system to a vacuum and refill with
refrigerant, absolute pressure might
Without going back to the picture, differential pressure gauge are common in
industry - 0 Pa indicates that the pressure on both sides are equal, a
negative pressure indicates that the pressure on the left hand side
(whatever is meant by that) is greater and a positive pressure indicates
that the
Dear All,
You, like me, might know of the unit, tesla (T), but know little about
the man. This short movie might help.
http://www.youtube.com/watch?v=gt8Y93k0pB0
Cheers,
Pat Naughtin
Author of the forthcoming book, Metrication Leaders Guide.
PO Box 305 Belmont 3216,
Geelong, Australia
Charlotte has a growing number of Latino immigrants. I'm thinking of passing
out flyers like this:
¿Viniendo a este país, estaba perplejo por estrañas unidades, tales como pies,
libras, y millas?
¿Desea que sus niños crezcan a ser buenos en ciencias y matemáticas?
Unase a la
U.S. Metric
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