OT - Tyre Sizes - Was Re: Database Design Question

From: Jonathan Leffler <jleffler_at_earthlink.net>
Date: Tue, 07 Dec 2004 07:02:34 GMT
Message-ID: <eActd.3433$0r.455@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 - 01:02:34 CST

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