[permaculture] oops - Cabbage Maggots cont'd
woodsjay at cox.net
Wed Mar 26 06:57:32 EDT 2008
Sunlight has most of the energy in the infrared and water absorbs strongly in
the 1400-1500 nm region between Near infrared and Mid-infrared. (It isn't
used in spectral mapping because it absorbs so strongly as to swamp (ha-ha)
everything else out.)
On Tuesday 25 March 2008 07:37:40 am Dieter Brand wrote:
> What is this business about the black appearance of water in infrared?
> Is this some kind of test you do?
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