Ms. M just installed some high efficiency LED grow lights on her hydroponic plants. I am fascinated by the fact that the green leaves appear white under their reds & blues. At first I thought this made sense because the plants obviously are not using green light so much (hence their reflection of it under white light) and the red and blue is being absorbed for their photosynthetic operations...
But then I thought, hmmmm - if there's no green and the reds and blues are being absorbed, shouldn't the leave appear black? So now I'm thinking, there's so much extra red and blue that a significant amount
is being reflected and that, along with the bit of usual green being reflected by some of the white light coming in, leads to the uniform RGB combo that we process as "white"...
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| Tilting light to the right |
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| Tilting light to the left |
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