Norman Macrae -The Economist pro-youth economist -bravo sir fazle abed & jack ma
................................Macraes' 2024 report in 1984 ..
Sunlight is the fuel which sustains life on earth. The process by which plants extract energy from sunlight, using that energy to build up complex compounds from simper ones and thereby storing the energy which animals, including humans, use to grow and move and see and think is the life-process itself. We (human beings) have always exploited that life-process, but in the past we have only been able to do so by using living plants as our agents. We learned to cultivate them, develop them by selective breeding, and since the 1980s to meddle with their genes, but we have not yet learned to substitute something of our own making for the living plant. We have not found or made a more efficient substitute for chlorophyll itself outside the naturally-occurring factory which is the living cell.
by Salman Khan - in 8,958 Google+ circles
Yes, light is light. However, the distribution of the colors comprising the light differs between natural/sun light and the various artificial lights available. Lights that
www.khanacademy.org/science/biology/photosynthesisBiology · Community Questions; Topics; Evolution and natural selection · Cells and cell division · Heredity and genetics · Tree of life · Cellular respiration ...