[Sca-cooks] Fwd: A.Word.A.Day--albedo

[Terry Decker]

I've never seen albedo used for pith, but it does derive from "albus" 
meaning white.  I'm more familiar with it as the ratio of the 
reflected/scattered light from and object over the amount of light falling 
directly on the object.  While it is commonly used to refer to the visible 
spectrum, the term "light" means the entire electromagnetic spectrum 
(usually called "power" in formal definitions) and the actual ratio is 
dependent upon the wavelengths measured.

Bear

> Since the list seems quiet...
>
> Has anybody heard this use of the word before?   I've only ever heard 
> "pith."
>
> Sandra