At 11:41 AM 10/12/2004, Peter L. Peres wrote:


>On Mon, 11 Oct 2004, Dave VanHorn wrote:
>
>>The other thing that makes all this fun, is the bizarre units of 
>>measurement that we have for light..
>
>Why bizarre ?

Well, Candles, Candelas, Stearadians, Lux, Phot, Lamberts.
One is derived from a specific sort of whale oil candle.

The whole thing looks like a Hogshead of footlamberts per fortnight to me. :)

This is probably the best explanation I've seen so far.
http://www.intl-light.com/handbook/ch07.html 

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