I wrote:
Actually, with heat alone and no photosynthesis, you might pull this
off with less than 1000 acres.
This is inaccurate, as Beene noted. It should say:
With IR photosynthesis alone, and no sunlight photosynthesis, you
might pull this off with less than 1000 acres.
I wonder if it is possible to efficiently convert full sunlight into
PAR, and feed only that light to plants? (PAR is 450 and 660 nm light
-- see my book, p. 131.) Peter Hagelstein once told me that piece of
colored glass placed over a white lightbulb & reflector -- such as an
old fashioned traffic light -- does not absorb much energy. In other
words, most of the photons eventually emerge as green light "after
bouncing around in there for a while" as he put it.
- Jed
