What exactly is this guy's problem with the metric system?  He seems to know it 
so it can't be unfamiliarity. 

Did he work for a company that switched to metric and he opposed and they fired 
him and now he is taking it out on the whole system?  

Jerry 




________________________________
From: Carleton MacDonald <carlet...@comcast.net>
To: U.S. Metric Association <usma@colostate.edu>
Sent: Wednesday, February 25, 2009 12:54:05 AM
Subject: [USMA:43256] Mistaken blather from a correspondent on another list


On a passenger railroad-oriented list to which I also belong, an article was 
quoted which included mention of “kph”.  I pointed this out, and received this 
reply from another list member who in the past has espoused very conservative 
opinions. 
 
Fire away, all.
 
Carleton
From: all_abo...@yahoogroups.com OnBehalf Of abyler
Sent: Tuesday, February 24, 2009 22:47
To: all_abo...@yahoogroups.com
Subject: Re: [A_A] Full steam ahead for California bullet train

--- In all_abo...@yahoogroups.com,"Carleton MacDonald" wrote:
>
> Also, the speed is expressed incorrectly - it should be "350 km/h" -there
> is no such thing as a "kph"..


[his answer:]

Sure there is.

Its not like km/h is a normal SI measurement. The silly and useless 
SI Metric system would insist on us using m/s.

kph is the colloquial Anglosphere abbreviation for kilmoeters per 
hour.

Kilometers per hour is just a bastardized bending of metric system 
rules to accomodate something like a traditional customary speed 
measurement most people can relate to and actually use, just like the 
metric "pound" (= 1/2kg); "livre" in France, "pfund" in 
Germany, "pond" in the Netherlands and Flanders, "libra" in Iberia 
and Italy, "jin" in China; and the metric "ton" (=1000 kg); the 
metric cup (=250 mL); the metric teaspoon (=5 mL); the metric 
horsepower (750 kgf-m/s).

See, that's the problem with the SI metric system compared to English 
customary units which is based on normal and practical human 
experience instead of esoteric physics. People cannot relate to the 
true SI metric units for most applications, so they don't use them.

Just one more reason so many railways systems (and international 
aviation and shipping and meterology) have stuck with English units 
or older versions of metric where the units make more sense for 
engineering purposes and practical thinking by human beings.


      

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