Say, Bill .... 

While a written article doesn't reveal pronunciation, do you think it is 
worthwhile to remind the folks you wrote to that the word is pronounced 
MIKE-roh-mee-ter to distinguish it from the precision measuring instrument, 
my-KRAH-meh-ter? 

Thanks for following up with these guys. As Jim Frysinger has notably pointed 
out, each drop added to the ocean is an important one. :-) 

Cheers, 
Ezra 

----- Original Message -----
From: "Bill Hooper" <[email protected]> 
To: "U.S. Metric Association" <[email protected]> 
Sent: Friday, July 1, 2011 5:10:58 PM 
Subject: [USMA:50807] Fwd: Micron vs Micrometer 

I'm forwarding a couple correspondences that I sent and received. I was 
pleasantly surprised at the friendly and positive attitude of the recipients. I 
thought some of you might find it interesting. 


(Read second one first to get things in chronological order.) 



Begin forwarded message: 





On Jul 1 , at 2:15 PM, Andy wrote: 





Hi Bill, 

Tom Hausherr agrees with you...micron is really outdated, and he's getting away 
from using that term. Apparently the CAD tools still accept it, but they're all 
switching to micrometer. 

We're going to edit that in his column, and we'd both like to run your comment. 
Is it OK to use your name? If you don't want to use your company name, we could 
just say Certified Advanced Metrication Specialist Bill Hooper. 

What sort of projects do you typically work on? It sounds interesting. 

Glad to know someone's reading our columns. Thanks for the feedback! 

Andy 




Begin forwarded message: 



From: Feedback < [email protected] > 

Date: June 30, 2011 8:33:11 AM PDT 

To: [email protected] 
Reply-To: Feedback < [email protected] > 



In Tom Hausherr's excellent two-part article on the metric system, he uses an 
outdated unit name. In the SI metric sysem, the next distance unit smaller than 
the millimetre is named the micrometer, NOT the micron. The name "micron" is 
outdates by about 50 or 60 years. Hausherr's excellent grasp of the need for 
uniformity in measurement suggests that he would be want to use the most modern 
name for that unit. 
PS I am admittedly not in the PCB industry, but I am a Certified Advanced 
Metrication Specialist interested in the use of SI in all industries. 


























Bill Hooper 

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