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OT - Tyre Sizes - Was Re: Database Design Question - any suggestion?

From: Jonathan Leffler <jleffler_at_earthlink.net>
Date: Tue, 07 Dec 2004 07:02:34 GMT
Message-ID: <eActd.3433$0r.455_at_newsread1.news.pas.earthlink.net> 






Bernard Peek wrote:


> In message <18c7b3c2.0412051704.7e144ecb_at_posting.google.com>, --CELKO-- 
> <jcelko212_at_earthlink.net> writes




>> Design a vector code.  Ever see the ISO tire (tyre) sizes?  They are a


>> three part vector code:  <width in cm><material><diameter in inches>,

>> so you can have a 155SR15 tire that we know is a steel belted radial

>> tire mesuring 155 centimeters wide on a 15" rim.





If I'm reading the attributions correctly, Joe Celko wrote the comment 
about tyres (sorry, tires - this was in the USA) that are over 1 metre 
(sorry, meter - it's still the USA) wide?  And I don't think it was 
written in Texas.



I assumed there was an implicit decimal point and the width was 15.5 
cm, or 155 mm.  The mix of imperial and metric units still amuses me, 
like a 4 ft by 8ft sheet of 23 mm plywood does.  Don't Mars Landers 
crash when you get the units confused - or was that Ariane?


-- 
Jonathan Leffler                   #include <disclaimer.h>
Email: jleffler_at_earthlink.net, jleffler_at_us.ibm.com
Guardian of DBD::Informix v2003.04 -- http://dbi.perl.org/


Received on Tue Dec 07 2004 - 08:02:34 CET












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