Monday, September 01, 2008

During the day, leaves of plants take light from outside themselves and make it be energy for them to use.

At dusk, it goes briefly and weakly, the other way. Plants use stored energy to emit quiet light at dusk.

So we could reverse the usual every day, briefly and mysteriously and subtly

--information from "Plant and Planet" by Anthony Huxley in the chapter on chlorophyll called "The Great Invention"