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Re: What are units-of-measure? e.g., what's a "kilometer"?

• To: roger.day@g...
• Subject: Re: What are units-of-measure? e.g., what's a "kilometer"?
• From: Alaric B Snell <alaric@a...>
• Date: Thu, 17 Jul 2003 12:31:26 +0100
• Cc: xml-dev@l...
• In-reply-to: <OF48E2C5BF.E281E40A-ON80256D66.003DD815-80256D66.003E8F16@c...>
• References: <OF48E2C5BF.E281E40A-ON80256D66.003DD815-80256D66.003E8F16@c...>
• User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030704 Debian/1.4-1

roger.day@g... wrote:
> isn't kilometer a bit, well, easy? Upping the stakes a bit, you could ask
> the question:
> 
> "What is blue?"

There's a definition of that you could use involving the effect of the 
reflect or emitted or transmitted light upon a human eye, *on average* 
(over the entire human race) causing more than a certain amount of 
stimulation to the blue receptor compared to the other receptors...

Which could be approximated in terms of stating that at least a certain 
percentage of the radiant energy within the visible spectrum is within 
the "blue" bit of it.

> So, a kilometer could be 1000 arbitrarily defined units.

Or indeed just one arbitrarily defined unit ;-)

> 
> Roger.
> 

ABS

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  • Re: What are units-of-measure? e.g., what's a "kilometer"?
    • From: roger.day@g...

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